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  1. M

    charging Li-On battery in winter - looking for heating element

    I am using BAT-SAFE box when charging my ebike battery (Li-ion Panasonic 36V/15.6 Ah) in garage. Problem is that in winter there are cold days when outside temperature is below 14 degrees and garage is not well insulated - How to warm up battery in BAT-SAFE box in order to get at least 50F ? We...
  2. M

    Programming the Bafang Middrive BBS01+BBS02

    When I set invalid parameter in the bafang tool and I will save it - whole 'profile' is not saved into controller but original setting of controller is somehow lost (e.g. changing max amps from 20A to 19A is not possible, only 18A is possible to save). I had to start from beginning (to set again...
  3. M

    Looking for 250W option

    Thanks for info. I agree that for 10% grade hub motor is fine when pedaling, but in my case have 3 sections of 13%-17% grade each 0.2mi long (path through forest) where hub motor couldn't not work properly even with my assistance (too low rpms)... That's why I favor mid drive motor currently.
  4. M

    Looking for 250W option

    What reliable mid motor <750w would you recommend to me now in 2019 ? Gearing depends on chain rings not on motor itself...
  5. M

    Issues with BBS02

    What mid drive motors you would recommend now in 2019 as 'reliable' in range 250 ~ 500w ?
  6. M

    Programming the Bafang Middrive BBS01+BBS02

    Hi, I programmed my BBS01B motor from 18Amp to 20Amp max (using 36v battery). I use motor purely in PAS mode (full assistance mode most of the time) and I am alwyas trying to pedal hard between 40-70rpm, depends on terrain. Do you think I could damage gears or something else in motor in the...
  7. M

    Looking for 250W option

    Regarding torque sensing - it's nice to have it but practically when pedalling uphill it feels very 'natural' even without it :D What do you think about reliability of such setup - BBS01 250w rated motor on 36v/20amp ? What will break first - nylon gear ?
  8. M

    Looking for 250W option

    I run mid drive motor BBS01 250w on 36V / 20Amp max so peak power is ~720w. As I am living also in EU I am happy that there's 250w sticker = legal motor. I use max assistance mode (720w) in steep 15% hill + I am actively pedaling as hard I can to maintain 10-12km/h speed. Total weight of me+bike...
  9. M

    bafang motor with stabilizer bar - not so stable

    it's precisely machined and bottom bracket is fine. Main difference is that stabilizer bar does not 'bite' to the side of bottom bracket. I will try to put more torque on M33 nut. Also I will have to mount motor somehow to downtube (e.g. steel hose clamps - large diameter) - currently there is...
  10. M

    bafang motor with stabilizer bar - not so stable

    Hi, I noticed that my bbs01 motor is not fixed enough by stabilizer bar (https://california-ebike.com/shop/bsb-1-bafang-stabilizer-bar-bbs0102-bbshd). It's slightly moving (+-1mm ~ 0.04inch) inside of low bottom bracket (picture below). In my opinion that M33 axle nut is really tight ~ 50-60nm...
  11. M

    BBS01 optimal PAS setting for steep hill

    I would say it's about 8mph uphill, but total weight it's 260lbs - me,baggage,bike so it's probably reasonable speed for 'weak' BBS01 :thumb:
  12. M

    BBS01 optimal PAS setting for steep hill

    I as understood optimal cadence for BBS01 250w is around 70 RPM. Let's say I will maintain cadence around 70-90 RPM in long steep section (e.g. 15% on 0.2mile) - in that moment I need maximal power from my mid drive motor. I do not want to use throttle (illegal in my country) only PAS. My...
  13. M

    BBS01 Chain line - chain ring with improved offset 42t

    Hi, I installed BBS01B 350w mid drive kit today, my 29" frame is a bit wide - it would be great to have chain ring with better offset (currently I have 'default' chain ring 46t installed - it has about 9mm (0.35 inch) offset. I am not able to use two largest wheels on 10sp cassette (11/36) in...
  14. M

    Bafang BBS02 chain ring with improved off-set?

    I would need chaing ring with improved off-set and I seems that this site no longer works ? (I cannot register there) : http://www.ebikeclub.it/shop/en/accessories/47-corona-42-denti-per-bafang-centrale-bbs01-e-bbs02.html any other ideas where to get 42t chain ring with better offset for BBS01B ?
  15. M

    29" e-bike for commuting - rear hub motor or TSDZ2 ?

    Quick update : I borrowed 250w bike yesterday (bafang BBS01 250w) and it really shaves off 50min of traveling time as I originally planned (with active pedaling). I had problems only in steeper sections >7% where my speed was sometimes under 7mph (10km/h) with active pedaling (~140 heart rate)...
  16. M

    29" e-bike for commuting - rear hub motor or TSDZ2 ?

    Thank @dogman dan, I agree with you. I will be faster when descending so even 12mph uphill should be fine - and motor will be actve only first 2km at the morning and 6km afternoon - but afternoon there's no real "time pressure" so I guess it will be fine. Also I got quite important advice from...
  17. M

    29" e-bike for commuting - rear hub motor or TSDZ2 ?

    Czech Republic, 30km from Prague. As I state before I need just partial assistance to get 15mph speed. I have 29" MTB with steel frame - Front tyre is 2.25 Schwalbe Nobby Nic because I had defects with lighter tyre on rough gravel road + also it's safer/more stable when descending ~20 - 25 mph...
  18. M

    New "TSDZ2 Torque Sensor Central Motor"

    When riding downhill it is ok to stand on TSDZ2 pedals like this ? Is crankset massive enough ? I know that some cheaper cranksets are weaker and will bend in the long run (my weight is 210lbs). Do you think that TSDZ2 is suitable for my needs ? More details here ...
  19. M

    29" e-bike for commuting - rear hub motor or TSDZ2 ?

    Hi, I commute regularly following 5.5miles long route through the forest to the train station : As you can see it's daily almost 2 hours of healthy MTB training (mostly gravel road not suitable for city bikes). I would like to reduce time spent on the route (forth and back) under 50 minutes...
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