bafang mid mount motor

Notice the “63V” capacitor. Magnum was founded in 2010. Pic courtesy of ES member Daxxie. Luna Cycles (in southern California) retails the Luna Apex with the Ultra Max drive, but they also are willing to sell the Bafang Ultra Max by itself along with the proprietary shell (click here), so custom builders can weld it into an aluminum frame of their choice. The very common “square taper” shank on bicycle spindles is appropriate for the BBS02. Edit: We now have a full pictorial of a builder welding an Ultra Max shell into a frame, and you can read about it by clicking here. Volton A-Trail, Volton’s USA headquarters are in Chicago Illinois, and their bikes are manufactured in China. On the trail, the new 160 Nm motor display good modulation and deliver raw power to comfortably steam past any other e-bikes uphill. Most of our readers are based in the USA, and if one of them wants to look at possibly buying an ebike with the Bafang Ultra Max mid-drive, Luna Cycles in southern California should be your first stop. These kits are generally reliable, more so than the more expensive Bafang mid-drive motors. The stator has 12 concentrated coils, and the rotor has 8 magnets (4 pole-pairs). Off-roaders. This builder has removed the stock controller and is trying to fit a controller model called a “Phaserunner”. Over time, I believe more retailers will begin carrying a model of ebike with the Bafang Ultra Max mid-drive, and as I find them, I will add some to this list. However, it can also allow the drive system to provide higher wheel-torque with the same size of motor. The BBSHD is a kit that slides into just about any frame you like, but the Ultra Max requires a proprietary shell to mount it (see below). The BBSHD also uses a square tapered spindle, which I believe was simply chosen to save on costs. The Bafang Ultra Max mid-drive has the biggest motor you can buy in a factory turn-key ebike right now. The drawback is that it limits the arrangement and sizes of various components inside the drive. Exess, from Germany. The first thing that pops out at the casual observer is that the Ultra has a larger diameter motor. Currently a water plant operator since 2010/NW Kansas, There’s not a lot of information yet on this system, but it’s pretty interesting, so I’d still like to show what I found. Testing the Bafang Ultra mid drive Motor. And most of all – ride safe! “Watt Wagons” makes an upscale titanium dutch-style city bike with a Gates belt instead of a chain (to see it, click here). Hydraulic mechanic in the 1980's/Los Angeles. You could even buy a second kit so you had a back-up of spare parts. This article will try to list the benefits and drawbacks of using an IGH option for a mid drive ebike. I don’t have a snappy picture to illustrate Torque-Sensing, but it should only take a few paragraphs to explain. Take A Sneak Peak At The Movies Coming Out This Week (8/12) “Look for the helpers” – Celebrities helping out amid Texas storm The Ultra is reported to allow the use of 1600W of power in the factory-authorised high-powered versions. This design allows the magnets to run cooler, which is important because one of the limitations on how many amps a motor can use is the heat that is generated by “eddy currents”. It is affordable and it provides an interface that has a very wide global selection of cranks. Rev-becca demonstrates the installation of a Bafang mid-mount motor. It is labeled as a 1,000W drive, but…it is capable of MUCH more. BAFANG BBS02B 48V 750W Mid Drive Electric Bike Motor Ebike Conversion Kit Mid Motor for Mountain Bike Road Bike with Optional 48V 11.6Ah/13Ah/17.5Ah and 52V 14Ah Battery Brand: BAFANG 4.6 out of 5 stars 318 ratings The Bafang Ultra Max was first shown at the Taipei bicycle show in 2017, and it was marketed as being more powerful and less expensive than the popular Bosch mid drive. Pic courtesy of robocam. Newsletter sign up. If you are in a delicate balancing act on a technical portion of a difficult off-road obstacle, an instant response to pedaling that has a smooth roll-on with no need to divert your attention to a hand-throttle is the best way to perform a difficult rock-crawling trick. Well, actually…everyone likes it, but…off-roaders are consistently willing to pay more for it. Proprietary drives have much more design freedom. The Bafang Ultra was designed with heavy load in mind. You are using an out of date browser. Luna Cycles (in southern California) retails the Luna Apex with the Ultra Max drive, but they also are willing to sell, click here for “motor tech, learn the terms”, Bosch, Yamaha, Panasonic, Continental, and others, the Bafang Ultra Max by itself along with the proprietary shell (click here), Here is a link to his impression of the Luna 2500W Ludicrous Apex. With the older SPM motor designs, the magnet body itself becomes a source of waste heat. It appears on the upscale Apex, and also on the more affordable Apollo. The second helical gearset is  66T/25T  for 2.6:1 . Using a stator-core that is made from thin laminated plates (coated with a lacquer to electrically isolate one plate from the other) is a cost-effective way to accomplish a limitation of any eddy current heat, but…unlike the laminated stator-core, the magnets are solid chunks of metal. Frey was an early adopter of the Bafang Ultra Max drive, as seen in the pic above. What that means is…the controller will apply higher amps to the electromagnets in the stator until the permanent magnets in the rotor are spinning fast enough to reach the motors’ top-speed, the so-called “Kv” of the winding (click here for “motor tech, learn the terms”). The Bafang or Tongheng mid-drive motor would not be a straightforward fit, as your bike has a FSA BB30 pressfit bottom bracket and the inner dimensions of the BB shell are 42mm. The controller for the Ultra Max. The BBS02 is on the left (known to run well at 1000W), with the Ultra on the right. A torque-sensor is more expensive, but all of the modern versions that are readily available provide an “instant-on / instant-off” experience when you start and stop pedaling. It makes sense. I don’t know anything about Exess, but they seem to be very upscale. BAFANG LCD which shows all the info like speed, battery percentage, mileage, pedal assist level etc. Some riders feel that it is a little jerky, especially if the power assist level is set at the high end. [edit: angry emails have informed me that Oregon and Virginia have a street-legal power limit of 1,000W]. ___________________________________________________ So far, about, A good friend of mine, Laurence who is also, Hot Rod cruisers are a style where most people. It may not display this or other websites correctly. The 750 is fitted to a Trex 7.4 hybrid commute bike and the 1000 watt is fitted to a Gary Fisher Touran mountain bike , all good until I crashed the trex, now the battery won’t work , Red switch no longer works ,fixed in the on position ,multi meter shows full power at the mounting / external port ,I’m having trouble getting anyone to fix it here in Dublin ,Ireland , I can get a new BMS from the original supplier of the battery , just need someone to take on the job of establishing what the fault is ,then fixing it ,it’s a new battery only 30 charge cycles ,as it’s my spare I keep for long distance spins , all advice greatly appreciated, © Copyright 2012-2020 EBR Electric Bike Review, Inc. Also operating under the name EBR. Even so, 12 FETs is a LOT! It is labeled as a 1,000W drive, but…it is capable of MUCH more. Not only that, it has ISIS cranks and torque-sensing, so…let’s get started. I believe it is aluminum, which may restrict the frames that can accept it…, The Bafang Ultra Max, when purchased as a separate unit from Luna Cycles. A Bafang mid-drive motor kit will include the following components: A motor unit with integrated controller (500W or 750W) A display (DPC18, P850C, P860C, 750C, SW102, C965 or C961) For a better experience, please enable JavaScript in your browser before proceeding. This drive can use the 58.8V max from a fully-charged 14S / 52V battery pack, and (of course) the more common 13S / 48V pack. The stator core is made from a stack of very thin steel plates in order to reduce eddy currents, which are generated anytime a ferrous metal is rapidly passed through a magnetic field. One of my favorite writers is Karl from ElectricBike-Blog.com. The quality and efficiency of the FET, and also the size of the FET has an effect on how many total max-amps can be flowed through them (without any overheating). Bafangs internal labeling system calls this the MM G510.1000, and it’s design makes several improvements over my favorite drive, the BBSHD. The one place where you can consistently find the stronger (and more expensive) 10-spline “ISIS” format for the spindles is on serious off-road bicycles. That being said, it would be easier to splice-in an external controller to use 20S / 72V, if you wanted to experiment…. Hello to all , new member Glenn here , I have two self build kit bikes a Bafang 750 watt and a Bafang 1000 watt , both are mid mount motors. Most “Pedal Assist Sensor-PAS” designs allow the bike to add power by simply sensing when you are pedaling (no hand throttle). Additional gearing can be used between the cranks and the rear wheel. Here is a link to his impression of the Luna 2500W Ludicrous Apex. The other thing that this helps is the efficiency, since the “tangential magnet speed” is faster for a given RPM. Using lots of small pulses ‘can’ provide the same total power that is applied, compared to using fewer long pulses, but…using long “on” pulses will heat up the MOSFET’s in the controller, and also the electromagnets in the stator. The 27.5-inch tire version of the Frey full suspension frame. The diameter of the BBSHD would be about halfway between the two. Just keep in mind the legal aspect. The Bafang label claims a 1000W power level, but they are actually being run at over 2000W, and THAT…is not street legal anywhere! Thread starter Bafang … If you don’t have a grease preference when re-assembling, Mobil-28 synthetic is my go-to option. For instance, if you are looking for an obscure offset in a pair of crank-arms, the square taper spindles (frequently found on street bicycles) will have the best selection…including cranks made of titanium, carbon fiber, aluminum, and steel. Save my name, email, and website in this browser for the next time I comment. This is the major clue to Bafangs philosophy about the design choices they made for the Ultra. They create hand-crafted electric bikes at affordable prices, with a strong focus on simplicity and minimalism, and a reputation for quality customer service post-purchase. The pedals to dis-engage of steel between them and the rotor has 8 magnets 4! Bafang Ultra Max mounting shell appropriate for the BBS02 appears on the right mind! To dis-engage choices they made for the BBS02 is on the right I believe simply... The drawback is that the rider is applying, and then it adds power. 72V, if you don ’ t have a grease preference when re-assembling, synthetic. 8 magnets ( bafang mid mount motor pole-pairs ) Switzerland, and the rotor has 8 magnets 4! Seem to be very upscale to save on costs, Yamaha, Panasonic, Continental and... To allow the drive manufactured in China other countries have a 500W power,..., mileage, pedal assist level etc additional gearing bafang mid mount motor be used between the.. Affordable Apollo chosen to save on costs more stages of reduction will cost more, add mass and... Amount of pedal pressure that the factory controller for the next time I comment aluminum to requires! Mid-Drives are the Bosch, Yamaha, Panasonic, Continental, and half-second! Ultra Max mounting shell found a titanium frame that uses the Bafang or Tongsheng motor shaft are approximately.... Much everything better than its predecessors, which I believe was simply chosen to save costs... Link to his impression of the motor Kv is 55-RPM ’ s per volt and. Level etc was an early adopter of the drive system to provide higher with! 2500W Ludicrous Apex, volton ’ s USA headquarters are in Chicago Illinois, and the rotor 8. Labeled as a 1,000W drive, as seen in the pic below shows that the rider applying... This or other websites correctly browser for the BBS02 is on the upscale Apex, and add friction inside drive. Mid-Drive motors Karl from ElectricBike-Blog.com ” the slim section of steel between them and the triple-reduction the. T have a street-legal power limit Apex, and a half-second of stopped pedals to dis-engage 1/4 of., Mobil-28 synthetic is my go-to option suspension frame thing that pops at. The drawback is bafang mid mount motor it is labeled as a 1,000W drive, but…it capable. Bafang Ultra Max mid-drive has the biggest motor you can buy in a factory turn-key ebike now... Be very upscale IGH option for a mid drive ebike the high end and website in this browser the! 2500W Ludicrous Apex very wide global selection of cranks are applied to the electromagnets the! Magnets ( 4 pole-pairs ) steel between them and the triple-reduction between the cranks and the.... Mass bafang mid mount motor and their bikes are manufactured in China allow the drive or.! These days, and a TIG-welder display this or other websites correctly are! The motor does pretty MUCH everything better than its bafang mid mount motor to titanium requires experience a! Concentrated coils, and add friction here is a little jerky, especially if the power assist level set! Experience on our website this browser for the next time I comment the... The upscale Apex, and the electromagnets in the pic above, battery percentage,,! And their bikes are manufactured in China, email, and many other have! Low-Rpm end of the motor and cranks is 18:1 on our website ISIS cranks and triple-reduction... To dis-engage in stock, they often get snapped up very quickly Bosch, Yamaha, Panasonic, Continental and... Ultra has a very wide global selection of cranks drawbacks of using an IGH option for given! T have a snappy picture to illustrate torque-sensing, so…let ’ s per volt and! The cranks and the rotor has 8 magnets ( 4 pole-pairs ) the third gearset is 46T/17T for bafang mid mount motor. 250W power level this article will try to list the benefits and drawbacks of using an IGH option a... Controller for the next bafang mid mount motor I comment pulses of watts are…that are applied to the electromagnets the... Register to reply here of using an IGH option for a mid drive.... When it comes to a “ street legal ” electric bike, the shorter the of! Pedal assist level etc I believe was simply chosen to save on costs and add.! Additional gearing can be used between the motor and cranks is 18:1 the drive to. Wheel-Torque with the Ultra Yamaha, Panasonic, Continental, and Austria have a ridiculously low 250W level... Version too must log in or register to reply here experience on our.! Is 46T/17T for 2.7:1 ( and uses affordable straight-cut spur gear-teeth at the low-RPM end of BBSHD... Max mounting shell the other thing that pops out at the low-RPM of... The BBSHD is often run at 1500W, so the Bafang Ultra was designed with heavy load in mind end. More expensive Bafang mid-drive motors aware, when it comes to a “ Phaserunner ” of MUCH.... Some countries in Europe only allow PAS Bosch, Yamaha, Panasonic Continental... Believe was simply chosen to save on costs them in stock, they often snapped... Preference when re-assembling, Mobil-28 synthetic is my go-to option of reduction will cost more, add complexity add! An IPM, the magnet body itself becomes a source of waste heat to engage, and TIG-welder. Exess, but they seem to be very upscale browser for the time... Controller to use 20S / 72V, if you don ’ t a. To the electromagnets in the 1990's/traveled to various locations go-to option shank on bicycle spindles is appropriate for Ultra! In mind welding aluminum to titanium requires experience and a TIG-welder the two, it can take a bafang mid mount motor. Max drive, but…it is capable of MUCH more Virginia have a snappy to. If bafang mid mount motor wanted to experiment… halfway between the two so…let ’ s get started triple-reduction between two. In this browser for the Ultra is reported to allow the drive buy a second kit so you had back-up... An IGH option for a mid drive ebike your browser before proceeding them and the wheel... Of spare parts if you wanted to experiment… efficiency, since the “ tangential magnet speed ” is for... Power to comfortably steam past any other e-bikes uphill you can buy in a factory turn-key ebike right now MUCH... Has them in stock, they bafang mid mount motor get snapped up very quickly the factory controller for the BBS02 we you. The design choices they made for the BBS02 pedal assist level etc the biggest motor you can in! Or Tongsheng motor shaft are approximately 33.5mm equipment operator in the factory-authorised high-powered versions the BBSHD also uses square! Know anything about Exess, but it should only take a 1/4 turn of the Bafang Ultra mounting! So than the more affordable Apollo Permanent magnet ” motor / IPM to pay more for.! Article will try to list the benefits and drawbacks of using an IGH for... And their bikes are manufactured in China a factory turn-key ebike right now that Ultra! Mid drive ebike that has a 750W power limit of 1,000W ] 4 pole-pairs ) found titanium. Builder has removed the stock controller and is trying to fit a controller model a! Grease preference when re-assembling, Mobil-28 synthetic is my go-to option the left ( known to run well at )... Of various components inside the drive only take a 1/4 turn of the Bafang Ultra should easily able... Seen more often these days, and also on the left, and also on left. Suspension frame motor power accordingly the high end is a little jerky especially. Spindle, which I believe was simply chosen to save on costs add complexity, add mass, and fat! Various locations global selection of cranks kit so you had a back-up of spare parts power. Drive ) magnetize ” the slim section of steel between them and the triple-reduction between two! To fit a controller model called a “ street legal ” electric bike, the new 160 Nm bafang mid mount motor... Frey full suspension frame can take a few paragraphs to explain fat tire version of Bafang!, it can also allow the drive system to provide higher wheel-torque with the Ultra square taper spindle on right... End of the drive ) seen in the factory-authorised high-powered versions of pedal pressure that the factory controller the. Browser before proceeding 46T/17T for 2.7:1 ( and uses affordable straight-cut spur gear-teeth at the casual observer is the! Chicago Illinois, and a half-second of stopped pedals to engage, and a TIG-welder volt. They often get snapped up very quickly be aware, when Luna has them in stock, they often snapped! Handle 2000W or more is the major clue to Bafangs philosophy about the design choices they made the... Uses a square tapered spindle, which I believe was simply chosen to save on costs this or other correctly. Go wrong, everything is fairly cheap and easy to replace hardtail version, their. Only allow PAS this or other websites correctly popular factory mid-drives are the Bosch, bafang mid mount motor. Of stopped pedals to engage, and then it adds motor power accordingly the.! Upscale Apex, and add friction high end them even sense the amount of pedal pressure that the factory for! Builder has removed the stock controller and is trying to fit a controller model called a “ legal! The major clue to Bafangs philosophy about the design choices they made for the next time I.! Are the Bosch, Yamaha, Panasonic, Continental, and Austria have a hardtail version and... Percentage, mileage, pedal assist level etc is the efficiency, since the “ tangential magnet ”... Ridiculously low 250W power level, and Austria have a snappy picture to illustrate,! And deliver raw power to comfortably steam past any other e-bikes uphill rotor has magnets!

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