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About overheating most overheating is at the Hub motors. Problem on Hub motor is for two reason: low speed and high current for example on a hill. The rpm is to low for efficient motor work and this means only a few watt is use by the motor to forward-power the bigger part of the battery...

hi trex, I just check SFM sprocket ratio´s and come to the conclusion, yeab roundabout 4800rpm motor spinning if on the crank is 100rpm speed. It´s a inner runner with iron-core. I like that motor because it support with higher torque as the bbs01 and the complete motor looks better designed...

I used a 17amps controller setup and my wattmeter shows 750watt max The wire on the 250watt motor is only 1,5 so it is not able to take more for long time btw, full battery 42V but I guess you´ve pictured it at 750Watt ;-)

Hi folk´s, I received from my Chinese "boss" a Bafang fatbike-motor to check it out http://www.szbaf.com/en/components/component/motor/rm-g06350d.html bad point´s The brochure says it works for dropout 170mm - 190mm but forget it. The Motor is designed for 170mm dropout and that´s it. The...

Hi Erik, i have a Motor for rollerbrake in my home. Its new and unused for 100mm forks with rollerbrake and the weigth is 2kg Diameter for the spokes is 120mm It has 36v 250watt Brand is shengyi: http://www.syimotor.com/products_detail/&productId=81a09d70-96ba-49b5-8a34-48e76ac5020e.html if...

Oh Bafang have some different 250Watt rear-cst´s If you give me your mailaddress I can send you the complete salesbrochure from Bafang. I made photo from each page and there you can see also the measurement of each motors A lot of different motor-drawings you can also find on my friend´s website...

I just get the technical drawing for the Bafang SWX02-C maybe somebody have interest in it regards frank

yo that´s not normal but to identfy where´s the problem on a video is a bit difficult. do you have a resist when the noise is coming or when you spin the crank? Can you feel where it is come from? I mean from the axle or from sprocket-set The big sprocket turns the small motorsprocket and this...

Hi folk´s, i felt a little bored and ordered in China the new small SWX02-C Motor from Bafang and from Xofo I ordered the XOFO-XFK motor Both Motor is 200rpm for 26inch and 250Watt. They look nearly similar from Outside but inside is different. I wrote two PDF-File´s for the description and...

ups.... I was to fast or to stupid for a correct reply, maybe I should change my signature ;-) there is my text: that´s true and I have a real problem to understand why the throttle is so popular in britain. Many years ago when I was searching product´s to open a my first conversion-kit shop...

you´re right about the dominant possion in europe from Bafang. Even I´m not a fan of Bafang I must admit that they found a way to be popular in europe. I was one of the first seller in europe who has sold Bafang but Bafang was also the reason why I didn´t wanted to be a seller for e-bike motors...

Testride give´s a very good impression it´have higher torque as the Bafang , noise is like the Bosch so a bit more than the bafang bbs but up now the system looks very good. can use roadbike five-arm chainwheels with 110mm but this option is only for hub-gears. Chain-gears has the same problem...

it should work for this easy job... I always use what is next to me on my work-desk and has two pin´s...

here is some phot o from pliers you can use forthe job. You dont need to buy the good brand for this easy job so I guess 10euro is enough, not big money. I would buy the red/yellow one the circlip-plier you better buy as a set but even a set is not expencive maybe 30euro and have sense if you...

Hi trex, I cant realy explain because after a lot of talks with Mr Wang, the Boss from Bafang, I gave up talking about quality and improvement. My solution is, try to collect information about the product and do the maintance by yourself. the chinese simply don´t care about if maybe 10-15% of...

Hi Nealh, no apologies needed, I´m not that sensitive:) I know the bbs motor very well because I let produce a small series for fatbike´s with a 100mm bottom-bracket in China, the first sample´s are on their way to me for a quality controll.....;)

yes it would be nice if they realy bring it to work. Until now it still not to buy so far I know. Since 2years the e-ram System is shown on eurobike-exhibition and I remeber they said it should be ready end of 2014 but there is still only a prototyp to see...... The gearbox is very special, it´s...

yeab, I´m using a circlip-plier but you also can use a needle-nose-pliers or something else with two pin´s. You also can use a srew-driver with a slight hit on his back the nut should be open and the rest you can spin with your fingernails. The nut is not tight. at california-ebike you can buy...

hi trex, you´re certainly right if the product would come from europe but if the product comes from China...... I have BBS-Motor´s with just a few km riding and it was neccassary to change the axle and the bearings! I have seen motors with a damage from first day because it was wrong assembling...