Search results

Thanks. I know you have tired both Tongxin nano and Goldant motors for your conversion. Which one do you prefer? For Goldant seems interesting as you said before it is smaller, lighter and can be faster (340rpm). Would this motor fit what I need? 15 miles each way, 10 stones myself, 90% flat...

Thanks. D8veh. For you setup, why did you pick Q100 over Bafang SWXK5? I believe Bafang motor is more reliable even with more power input and the width is the same as Q100. If I manage to get 48v 10AH on brompton to reach 20mph, is it quite hard for brompton to handle this speed? Btw, I...

Hi d8veh How reliable are the cute 85 and 100 motors? It seems they are not big 83mm and the speed matches what I need. For having constantly 15mph, is 48v battery a must? I can charge my battery at my workplace so I believe 36v 15ah battery would be enough for 15 mile commute with average 15mph?

Hi jerry It does really. My workplace wont allow me to leave a folded bike within the office area for health and safety reason but My brompton can fit nicely under my office desk so no issue with that. Also, my car is Fiat Panda so the boot is quite small to fit a folded bike that bigger than...

Hi cwah, I have a friend cycling to work with brompton (not electric) for a 1 hr everyday and he is quite happy with it. For me, my shortest route is 15 miles so also takes about a hour as well. What do you think if I peddle 50% and throttle 50%, 36v 10ah would be enough? Thanks Pat To be...

Thanks D8veh My coummute is nearly flat (90% of the route) and the road is not very bumpy. The actually commute is around 15 miles but I just like to pick a longer route for riding :) For the suspension of the bike, my brompton is nearly none. I have seen a seat post with full suspension. Have...

Hi Jerry, thanks. I am just kidding really :) I like to peddle rather than throttle it. Just wondering what would happen if use the throttle for long period of time? Pat

Yea it is overkill but how about 15ah? I am tempted to use throttle only for traveling 20 miles each way.

Jerry How about the reliability of both motor Tongxin and Cute? For me, it seems Cute 85 is a better choice considering the power and weight. Just wondering why did you not pick Cute 85 over Tongxin for your brompton? For the battery, is it any good? 36v 20Ah...

Thanks. Jerry. I have emailed to see what she says. I have looked via the website but they do not mention the name Tongxin motor. Is this the right one? Hangzhou outrider technology Co.,Ltd. Btw, can I choose higher RPM (let'sa say 328) to improve the speed? as my commute route is pretty...

Thanks. Jerry My commute route is not very hilly but it does some hills to climb. I probably follow your advice to go for the tongxin motor nano. Can you tell me where to buy? Is it 36v with 27xRPM? By the way, my brompton is m3r and what controller should I get 4 it? Many thanks Pat

Thanks jerry I have checked your DIY job and you are brilliant! I am not electric engineer and I want to DIY for my purpose I need to travel 20 miles each way. Ideally, it could be run at about 20 mph (at least 15mph) Would Tongxin motor do this job well? If I use Bafang motor, would I be...

Oh well. What options do I have for the similar setup then? thanks

Hi Jerry, Thanks for your advice! Can you tell me how to source those components? Is any company supplying Tongxin motor kit with brompton? Thanks. Pat

thanks guys. In that case, which kits is better for the brompton conversion? 24v or 36v one from greenbikekit? Regards Pat

Hi guyz, I was the one having the first build post. Sorry for hijacking your post. I do have a brompton hanging around as well and I want to do the conversion for my second project. what is the different between bafang SWXK5 and GBK-100F motor? What is sensorless or hall motor? thanks guys Pat

Thanks d8veh, it is getting clear what I should be getting now. Would this PCM require for the battery? BMS, battery management system, lifepo4 bms, phosphate pcm supplier. online store for electric bicycle components-GreenBikeKit.com Thanks

Thanks again. Sorry for being so thick. For me it is very challenging job as I have not done something like that before. For battery selection , should I pick 10A-20A discharge current one? Or should I get a higher one? Is torque arm necessary for this mod? Do I need to widen my bike fork for...

You are great! but I have a bit more questions to ask if you dont mind. I am planning to get all the parts together now. Would mind to tell me what is missing? motor Bafang SWXK motor for electric bicycle; 8fun engine for e-bike online store for electric bicycle components-GreenBikeKit.com...

Many thanks d8veh, I have decided to build my own wheel using SWXK5 motor. What sort of controllers do I need to get around max 20 mph? do I need to modify anything within the controller to achieve this? For battery wise, I will be getting 36v 15ah. do you have any recommendation from...