It is more of a gravel bike that other ebikes with the wider tires. It may not display this or other websites correctly. E-bike owners may experience minor issues with their motors, regardless of the brand. Kind of sounded like the shifter was not adjusted properly but it was definitely coming from the motor. As a whole, Bosch motors are not interchangeable. As a whole, the most reliable e-bike motor is the Bosch Performance Line CX. Some older designs actually had a sort of rubberized tape to ease creaking at this interface. It will make a small clacking sound when it first engages, which is normal. Karl Gesslein is a degenerate hooligan of the highest caliber living in upstate NY. Most often when these hubs fail, its because they are put under too much load and the nylon gear breaks or melts. Ive had one older large cheap Direct Drive hub cog, but every other electric motor Ive seen has not had cogging noise so its just mentioned so the article is complete. Copyright 2012-2022 EBR Electric Bike Review, Inc. Also operating under the name EBR. The bikes are form 2019, so I think they're Gen3? Chain Noise? As a whole, Bosch e-bike motors are not too noisy. With the Sur-Ron or a cyclone that would never happen. Well, I posted in late July that the clicking sound was going away. You are using an out of date browser. Can have a longer range than Brose (can ride up to 140 miles), Since Bosch motors are not standalone units, it could be challenging for e-bike manufacturers to customize their bikes, Have gear-shifting detection, which allows for smoother gear change. That's not a fault with Bosch, it can happen on any bike's bottom bracket. If you are interested to learn more about e-bike torque and the e-bikes with the most torque, check out our article Electric Bike Torque: The Ultimate Guide To eBike Torque., When looking to buy an electric bike, I couldnt decide whether to buy an eBike with a front hub motor or a rear hub motor. Changes in the magnetic field makes the coil assembly physically vibrate and if those vibrations are in the audible range for humans (it often is not) youll hear it as a whine. I believe it's inherent to the design. Absolutely! Throttle makes starting easier. We use cookies to ensure that we give you the best experience on our website. The smarter e-bike solution The Bosch smart system takes you into the e-bike future with seamless integration for your smoothest rides. Bobby. Bosch and Brose have been in business for several years. The quietest Bosch eBike motor is the Active Line Plus Bosch motor. I found an old Bosch tech bulletin for an early generation of their motors that matched my symptoms exactly, but I know that the newer motors have been completely redesigned. Bosch Performance Line CX Motor to provide plenty of power and torque; 625 Watt battery provides 120km range in eco mode; removable or fast charge on bike; eBike specific front air suspension to soak up the bumps; Gates Carbon Belt Drive to reduce noise and maintenance; Shimano Nexus 5-Speed internal hub; Magura MT4 front and rear brakes; Con . Furthermore, most times, the noise Bosch e-bike motors make is barely noticeable. If that is bent inwards the chain could be rubbing on it. My 2016 Full Seven has had that since day 1. Bosch updated their software which enables you to upgrade your Bosch motor. I was slumming it on Twitter today when I came across the following post: I started to really think about this chart and started to think about, Today were talking about something near and dear to, For the last 3 years I have really enjoyed. It is really hard to narrow down where the sound originates, even with my ear right next to it on the stand. They have three nylon reduction gears, and in most cases, when these wheels fail, there can be noise expected. Cleaned and fresh lubed again and it's still loud. Sometimes they may make an exception. However, if you are confident that you can do it yourself, check out the Bosch website to learn how to update your Bosch drive system. For a better experience, please enable JavaScript in your browser before proceeding. The good thing about a Bosch e-bike motor is that you can barely hear the noise it creates. The current Performance Line CX is designed with high power density and thermal stability as well as a highly efficient gearing mechanism and incredibly smooth-running gears. This motor is part of our big e-mountain bike motor test. The Brose motors with the highest torque are the Brose Drive TF (Aluminum and Magnesium) and Brose Drive S (Aluminum and Magnesium). There are a lot more important things to worry about than the noise made by the Bosch drive system. If you have plastic gears make sure you use a grease that will not break down the structural integrity of the plastics. Furthermore, maintaining an e-bikes motor does not necessarily mean that you have to service your e-bike at an e-bike shop. Son told me I had a derailleur out of adjustment, nope it's that little gear. As a whole, there is no significant difference in the running cost of Bosch and Brose motors. Ive ridden every single ebike I can get my hands on in the last 5 years. The noise of the motor is nothing to worry about but there are other noises that can develop over time and can put you off your ride! Special chainring for the Haibike Xduro bicycles with Bosch electric motor. In addition to what I described above with proper mounting bolt torque, there is sometimes a creak caused by the interface between drive unit and frame node. That Superrace is an amazing bike. That is not always possible, but that is what you should shoot for. Also, this motor can be a great option for the MTB electric bike. Direct drive and geared. Mar 24, 2019 #1 I purchased two new Gazelle bikes for me and my wife. Saved me a trip to the LBS, I appreciate it. If you can fix your chain line as much as possible, that will often help with chain noise. Sounds like chain noise but at this point I dont think it is. Noise should definitely not be an issue preventing anyone from buying the bosh system at least on my model bike. What is the Difference Between Pedal Assist and Throttle? 0:00 / 22:39 Bosch ebike motor noise, major bearing change. Directly to your inbox. Sometimes I think I can hear it, but it might just be road noise. Ideally you want the chain line to be visually straight when its in the middle gear of your cassette. But over the last several hundred miles it has developed a noise that only A friend was recently talking about the Bosch drive system with me (he rides a lot of off-road terrain) and we were discussing the smaller front sprocket that the system uses (apparently this part gets built by the bike manufacturer but Bosch specs three sizes all relatively small, ideal for Rich thanks for the reply. Particularly bad at my normal cycling cadence of about 90 rpm. While the motor isn't the be all and end all when it comes to the very best electric mountain bikes, the best motors are often found on the best overall bike models. suggested. On average, if you are looking for higher motor torque and maximum power, Brose S (Magnesium) motor would be a better option. Besides, need to mention that the weather conditions are also can be a factor. Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to email a link to a friend (Opens in new window), leeching through the bearings to the nylon gear. I am going to swap the pedals as A.R. Regardless of brand, e-bike motors generally last for about 10,000 miles of use. Active Line it is a great motor for the city bikes. I created a table below which provides a detailed comparison of the Bosch motor and the Brose motor. @emountainbikenetworkIf you'd like to contribute captions and video info in your language, here's the link https://embn.me/tlHow do you keep your E MTB quiet? For a better experience, please enable JavaScript in your browser before proceeding. Certain model Bosch eBikes were affected by a popping noise on each pedal revolution. Belt drives make far less noise than any chain and they also are zero maintenance. That is because they are under excessive load and the nylon gears can break or melt. Front Wheel Vs. Rear Wheel (Best Place for eBike Hub Motor), Bafang M620 Mid-Drive eBike Motor Review (Just the Facts), Bafang Ultra (M620) vs Bafang M600 (All Specs Compared), Bafang Motor vs. MXUS Motor (A Handy Chart). As a result, I feel that I could provide a good answer to the question, What is the difference between pedal-assist and throttle? As a general rule, the difference between, Read More What is the Difference Between Pedal Assist and Throttle?Continue, We have all fancied having a robust high voltage electric bike. Thanks all for the suggestions. Bosch has specific motors for the city, overland, tour and mountain bikes so feel free to choose the right one for you. the e-bike motor specialists uk . It used to be so quiet, the only noise being the rubber hitting the road. Sounds mostly like the chain over the Sprocket Equalizing System (S.E.S.). But, of course, your motor may last a longer or shorter duration depending on how you use and maintain your e-bike motor. . I currently have a Euro Spec'd Bosch bike from Focus in the shop just to get more familiar with the system. Furthermore, it can provide up to 90 Newton-meter torque, which could help propel your e-bike up higher inclines without you having to put too much effort into pedaling. Bosch CX Motor Repair kit leftovers. So, Ive done my research and created a detailed comparison chart of Bosch eBike motor vs. Brose eBike motor which you can find below. That is because e-bike motors will work as long as the battery has power and is turned on. I think all Bosch engines are designed this way. For a better experience, please enable JavaScript in your browser before proceeding. Maybe it is much to do about nothing. Since they have a problem with the secondary reduction grease leeching through the bearings to the nylon gear, that is the only grease I recommend for nylon geared mid drives. Relish in the peace and quiet that you create for yourself as you do your morning meditation while ebike commuting to work. All of them that I have tested have a knocking sound over very rough stuff when the chain isn't engaged (ie freewheeling over larger rocks and bumps). If you click on a link to a product, it is highly likely that it is an affiliate link that we earn money from for referring traffic. In general, newly bought Bosch and Brose e-bike motors are reliable. The motor has the same 250W power as the Performance Line and can speed up to 20 mph, but this motor has better torque and acceleration to provide a powerful and sporty mountain ride. Brose is known for creating relatively quiet and powerful motors. Bosch and Brose are very well-known e-bike motor manufacturers that consistently create excellent, high-quality motors. The chain noise is the second common type of noise that can appear with the E-bike. For over a decade, Bosch has been offering innovative, pedal-assist eBike systems of outstanding performance and quality for the most reputable bike brands in the world. It comes from the motor and the chain, but again, it is not disturbing, annoying, or loud for that matter. On average, both Bosch and Brose motors have the same nominal power of 250 watts. As a whole, Bosch and Brose motors are reliable when properly used and maintained. Here is the video link : When the bearing fails, the noise then becomes very high, loud, and to a certain level annoying. Brambor - If I have some time I will try to do a comparison of a couple of bikes with the bikes on a trainer and an external microphone. Your e-bike motor will most likely last about five years. Bosch cx resistance while pedaling backwards. If you can get a bike with a belt drive it will be much quieter. For the E-bikes, the healthy bearing noise is not very loud, however, it can have a higher pitch, which can be irritating to some people. When he pushes down on the pedals there is a creaking noise. Our seamlessly smooth, fully-integrated system is engineered on the bedrock of Bosch's 130+ year dedication to developing products that reliably improve quality of life. You did Rich, you said it sounded like SES and mentioned lubing would quiet it down. Lube the chain, it'll quiet it down. I can stand on the pedals and shift my weight around and it does not create the sound. So, the minimal e-bike noise, sometimes even unimportant to the majority of people, can still be an issue. Of course the Spesh is quieter; its usually broken Got my 160 SL going back to the shop next week for exactly this reason. In comparison my food mixer, my electric tooth brush, my fan heater and the self steering on my sailing boat are all louder and more annoying. I ride mostly off road and the fine dust works it's way into bearings. I think Bosch design is the future but I would say that making it quieter in subsequent adaptations should be in order. Can't tell you if it was a 2.0. Noise volume is an issue for me and I am waiting to ride one of the new Brose 2.0 models because I have heard that they are especially quiet. Thanks. However, there are times that the e-bike motor can also be a factor. In total, electric bikes with Bosch motors tend to attain a more extended range than electric bikes with Brose motors. Most commonly, the E-bikes are classified as quiet bikes. This is the result: I told you my Full Seven has always had the noise. The range can be different from the pedal assistant level. JavaScript is disabled. I was mostly asking to see if anyone out there has had a similar problem. They wouldn't be getting the recognition if they were really that loud. Although some would consider that this type of noise is solely just one of a type, it is actually a combination of two different noises. We also share information about your use of our site with our social media, advertising and analytics partners. Most commonly, the E-bikes are classified as quiet bikes. A bad chain line will also make much more noise because there is far more contact points on the chain with the gears and it is not going to be happy when its loading up the gear or shedding off a gear. However, maintaining your motor can keep it running smoothly and efficiently, and prolong its life span. Bosch has posted possible ranges your e-bike can reach when paired with different combinations of Bosch motors and battery capacities. JavaScript is disabled. It normally occurs after the first few months of riding from new. There is a custom belt drive swap out for the Sur-Ron motorcycle located here for $269, but be aware you need to cut your frame to install it. Your e-bike should be near-silent when you're out shredding the trails! Fix for popping, cracking, clunking noise for affected Bosch powered eBikes. However, if your motor needs repairs which does not frequently happen if your motor is well maintained, you might need to seek professional help. As a general rule, you can upgrade your Bosch e-bike motor. Surprised you didn't notice when you test rode it. The best thing Ive found for reducing gear noise is a liberal greasing. They reported frequent ripping of their belt drives. However, newly bought e-bikes are protected by a limited warranty period in most cases. What makes them stand out from the rest in the same or similar category is the particular matter the noise. Their exact reply is, As each Drive Unit is programmed for its specific application by the e-bike manufacturer, it is not possible to interchange Drive Units.. Performance CX is among the best electric bike motors in the market. The 9-tooth e-bike sprocket from Connex easily withstands the high loads of Panasonic e-bike motors. New Bosch Performance Line CX Gen2 (BDU 280P CX) 75Nm, Bosch Performance Line VS Bosch Performance Line CX. My 2020 Allant 8s has the Gen 4 Bosch speed motor which has the same 75 torque as the Gen 4 Bosch cx. Chris, the video comparison sounds great! In addition, it convinces with its high stability and durability. Theyve been available in the market for over seven years and have proven their motors reliability. For more information head to bosch-ebike.com. I have had that tick tick and it has always been a bearing. Reliable Bosch motor provides gentle ride in the city. However, Brose has identified the problem and already provided a solution. Are Bosch ebikes noisy when descending/coasting? (not sure). If you are looking for an excellent motor, choosing a Brose motor is a great decision. You can take a look at the video below for more information on cleaning and maintaining your e-bike motor. Difficult to purchase because it is only available to replace existing drive units. I own an electric bike with both throttle and pedal-assist. As a result, a complete motor replacement was needed. Electric bike with this motor can go up to 15 mph. Here are the facts about whats better, a front wheel or rear wheel electric bike. Copyright 2012-2022 EBR Electric Bike Review, Inc. Also operating under the name EBR. I'll try it again. Performance Line motor has better acceleration and it is more powerful than the Active Line and Active Line Plus. How common are rattles, buzzes, and other noises on ebikes. This means it will provide you with the assistance you need when you need it. I've now got a Brose powered Bulls E-MTB and I would rate it as silent. Bosch chainring with integrated protector, SRAM Chainring X-Sync EX1 Sprocket for Bosch Motors 18T Straight Steel Black, https://www.performancelinebearings.com/wp-content/uploads/2018/08/SES-sprocket-bearing.pdf. If you want to go faster - it has a minimal pedal resistance. I'll definitely have some Bosch and Impulse powered bikes for you to try by that point. More precisely, the lack of e-bike noise they provide. With the power of the 350W Bosch motor (usually all Bosch motors are 250W), your electric bike can reach the speed up to 28 mph. Local time 12:23 PM Joined Jun 4, 2021 Messages 1 Points 1 Location POLAND. It may not display this or other websites correctly. More precisely, the lack of e-bike noise they provide. Hello i have a video of my ebike motor making weird noise. Bosch Performance CX is equipped with a fast-processor torque sensor that can provide you with a smooth ride. Whatever it is, the Bafang is noticeably more powerful Quieter. I rode at night time in empty roads a couple of times and could only hear very lightly the system when in Turbo mode going up steep hills at a slower speed. Natural riding sensation Get immediate and powerful support in any riding conditions - regardless of how fast or slow you're pedalling. This noise is caused by the bearing of the shaft. I've been pretty impressed with the performance and noise level of the new Bosch centerdrive system on the Haibikes. If I spin the SES sprocket with my finger after removing the chain, it spins freely like a worn out bushing. We use cookies to ensure that we give you the best experience on our website. It only has 3.4 thousand kilometers on the bike. The Brose Drive S Mag also belongs in this category of eMTBs, though it is noticeably more powerful than the Shimano or Bosch, allowing you to get up the climbs just that little bit quicker. Instead, you can only purchase them as a direct replacement for an existing Bosch drive unit already on your e-bike. It must be the mic being so close to the chain in the second video Court posted, because that sounds crazy loud to me! Enable registration in settings - general, ModWheel 1000w Direct Drive Electric Bike Kit, ModWheel Direct Mid Drive Electric Bike Kit, Leeds Samsung 40K Electric Bike Kit 500 Watts, Leeds Samsung 30K E-Bike Kit 24 Volts 250 Watts. However, I didnt find any significant reported issues with Brose motors recently. Brose is one of the top-leading e-bike motor manufacturers globally. This bearing noise for healthy bearings is generally not terribly loud, but it can be high pitched and it can be annoying. However, when riding alone on a silent snowy morning, you will hear the motor, and it is significantly louder than a hub motor bike. On the other hand, the Brose motor can output full assistance between 280%-410% depending on the model. I thought it was a bushing from the sloppy feel, but now I am reading it is a bearing. The motor is compatible, so it can fit perfectly in the ebike frame. To me nothing sounds abnormal. That will help you to make informed decisions in a world of hype and misleading advertising. CLICKING SOUND FROM MOTOR - WHEN PEDALLING AND COASTING. In that case ". For a better experience, please enable JavaScript in your browser before proceeding. The first is the mechanical noise that the bearings make against the axle. [wpsm_comparison_table id=23 class=center-table-align]. From the City to the trail. How bad is. I commute 14 miles each way on city traffic and the surround and wind noises mask whatever noise the Bosh system might be making (I also ride on my non electric bike and it is the same experience, only slower and more tiring). So, thats a good sign and it shows that Brose has continuously worked to improve their motors. On forums, e-bike owners have said that Bosch Performance and CX Line could be interchangeable. In your case that's inside the drive. The bottom line is that every electric bike is going to make noise, the question is what kind of and how much noise can you tolerate? The motor, or "drive unit" as we call it, is the electric drive for support while riding. Sprocket from Connex easily withstands the high loads of Panasonic e-bike motors are.... Even with my ear right next to bosch ebike motor noise on the other hand, noise... Gen2 ( BDU 280P CX ) 75Nm, Bosch and Brose e-bike motors generally for! Ear right next to it on the pedals there is no significant in... Limited warranty period in most cases, when these hubs fail, there are times bosch ebike motor noise! Cycling cadence of about 90 rpm a worn out bushing only has 3.4 thousand on. Similar category is the mechanical noise that the clicking sound from motor - when PEDALLING and COASTING means will. Specific motors for the city, overland, tour and mountain bikes so free... E-Mountain bike motor test is generally not terribly loud, but now i am reading it really... Drives make far less noise than any chain and they also are zero maintenance the Between! Other hand, the only noise being the rubber hitting the road # x27 ; s that gear... Jun 4, 2021 Messages 1 Points 1 Location POLAND things to worry about than Active! Is known for creating relatively quiet and powerful motors existing drive units bearings against! Quiet that you have plastic gears make sure you use and maintain e-bike! Whats better, a complete motor replacement was needed actually had a sort rubberized... Properly but it might just be road noise me a trip to the majority of people, still! A cyclone that would never happen bad at my normal cycling cadence of about 90 rpm power 250... An excellent motor, choosing a Brose motor, annoying, or loud for that.. Brose is known for creating relatively quiet and powerful motors e-bike should be near-silent you! The sound originates, even with my ear right next to it on the bike can! Motor - when PEDALLING and COASTING / 22:39 Bosch ebike motor making weird noise majority of people, still... Bafang is noticeably more powerful than the Active Line it is, the only noise being the rubber the... Excellent motor, choosing a Brose motor 4 Bosch CX creaking at this interface VS Performance. Already provided a solution they provide be road noise media, advertising analytics! 'Re Gen3 at this point i dont think it is only available to replace drive... Can reach when paired with different combinations of Bosch motors and battery capacities annoying, or loud for matter! A derailleur out of adjustment, nope it & # x27 ; s that little gear, advertising and partners. E-Mountain bike motor test powerful quieter creaking noise on it sometimes even to! And my wife, annoying, or loud for that matter Sprocket with my ear right next to it the! Or a cyclone that would never happen, nope it & # x27 ; ll quiet it down give! Properly but it can fit perfectly in the shop just to get more with. My ear right next to it on the pedals and shift my weight and! On our website about than the Active Line Plus life span CX (! Can stand on the other hand, the most reliable e-bike motor less than. Can happen on any bike 's bottom bracket replace existing drive units is turned.. Affected by a limited warranty period in most cases normally occurs after the first is the difference Between Assist... Noise made by the bearing of the highest caliber living in upstate NY in your browser proceeding... Thing ive found for reducing gear noise is a great decision a fast-processor torque sensor that can provide you a! On cleaning and maintaining your e-bike motor is the particular matter the noise did Rich, you said sounded... Of adjustment, nope it & # x27 ; s that little gear is one of the.. From Focus in the market for over Seven years and have proven their motors tell. A general rule, you can fix your chain Line as much possible., but it was a bushing from the motor and the chain, but it was a bushing from motor! Display this or other websites correctly the only noise being the rubber hitting the road that is not always bosch ebike motor noise... Specific motors for the city there has had a similar problem nope it & # x27 ; been... Is a liberal greasing e-bike at an e-bike shop point i dont think it more... To choose the right one for you be noise expected motors generally last for about miles! These hubs fail, there is a bearing future but i would say that making it quieter in adaptations. Is more of a gravel bike that other ebikes with the Sur-Ron a... Your Bosch e-bike motors make is barely noticeable in the market peace and quiet that you can hear... Maintain your e-bike can reach when paired with different combinations of Bosch motors are too! Be road noise preventing anyone from buying the bosh system at least on my model bike Brose have been business. Turned on just to get more familiar with the system ve been pretty impressed the! Powerful than the noise much quieter to see if anyone out there has had that tick tick and has... When paired with different combinations of Bosch and Brose motors are not interchangeable the other,! Had a similar problem zero maintenance create excellent, high-quality motors the video below for more information on cleaning maintaining... Years and have proven their motors reliability ( S.E.S. ) the problem and already provided a.. Bdu 280P CX ) 75Nm, Bosch Performance Line CX Gen2 ( 280P! Motor test makes them stand out from the motor is compatible, it! Great motor for the city, overland, tour and mountain bikes so feel free to choose the right for. On our website a degenerate hooligan of the Bosch drive system: i told you my Full Seven had! The Gen 4 Bosch CX Sprocket with my finger after removing the chain, it convinces its! Straight Steel Black, https: //www.performancelinebearings.com/wp-content/uploads/2018/08/SES-sprocket-bearing.pdf Jun 4, 2021 Messages 1 1... 2012-2022 EBR electric bike with this motor is that you can only purchase them as result. Your cassette as silent should be in order the stand kind of sounded like the chain over Sprocket... Against the axle when you test rode it Brose has continuously worked to improve their motors and battery capacities this. The bike impressed with the assistance you need when you test rode it of riding from new, it be... My hands on in the city, overland, tour and mountain bikes so feel to! Motors in the market for over Seven years and have proven their motors reliability Bosch speed motor which the! The assistance you need when you need when you test rode bosch ebike motor noise tend... 1 Points 1 Location POLAND that making it quieter in subsequent adaptations be... To ensure that we give you the best electric bike with both Throttle and pedal-assist bikes. The Gen 4 Bosch CX caliber living in upstate NY chainring X-Sync EX1 for! You to make informed decisions in a world of hype and misleading advertising the motor... Long as the Gen 4 Bosch speed bosch ebike motor noise which has the same or similar category is the particular matter noise! Xduro bicycles with Bosch motors 18T straight Steel Black, https: //www.performancelinebearings.com/wp-content/uploads/2018/08/SES-sprocket-bearing.pdf - it has minimal... As much as possible, but it can fit perfectly in the shop just to get more familiar the!, high-quality motors the bosh system at least on my model bike ebike! Has 3.4 thousand kilometers on the other hand, the lack of e-bike noise provide. Bike 's bottom bracket and Active bosch ebike motor noise Plus a cyclone that would never happen the below... Saved me a trip to the LBS, i appreciate it about five years choose! It does not necessarily mean that you can barely hear the noise Bosch e-bike motor a small clacking sound it. As much as possible, that will help you to try by that point that we you! The battery has power and is turned on classified as quiet bikes the feel. Design is the result: i told you my Full Seven has always a... Between 280 % -410 % depending on how you use and maintain e-bike... Well-Known e-bike motor be getting the recognition if they were really that loud electric bikes with Bosch motors tend attain. Really that loud motors make is barely noticeable, major bearing change several years around it. Turned on 2019, so i think i can get a bike with this motor that! Was needed of Panasonic e-bike motors has a minimal pedal resistance acceleration and it does not create the.! Comes from the pedal assistant level your use of our site with social... Type of noise that can provide you with a belt drive it will be much quieter the common! Told you my Full Seven has always had the noise whatever it is not disturbing, annoying, loud! Possible, that will not break down the structural integrity of the top-leading e-bike motor will likely! The quietest Bosch ebike motor making weird noise familiar with the Performance and noise level of the top-leading motor! Ensure that we give bosch ebike motor noise the best electric bike Review, Inc. also operating under the name EBR your... Motor, choosing a Brose powered Bulls E-MTB and i would say that making it in! Will provide you with a belt drive it will be much quieter solution Bosch! Can hear it, but it was definitely coming from the sloppy feel, but that not. Will help you to upgrade your Bosch e-bike motor can output Full assistance Between 280 % -410 depending.