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    M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

    Actually the LCE930 frame quality is very high. Carbon finish + aluminium inserts for bearings and motor mountings makes this frame really well made. At my weight about 100kg geared up, frame have survived over 2000km of hard Enduro trails no problem. The only problem with mainstream review...
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    Bafang M820 Firmware thread

    I have a SW from post #2 of this thread but there is MTB 43V version at post #4.
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    Bafang M820 Firmware thread

    This would be eroad SW. 43V *10A = about 430W max. Get xxxxx4313xxxxxxx software from this thread. 43V*13A = about 560W
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    Bafang M820 Firmware thread

    https://www.k1ebikes.com/bbr/ It works great. I can use most of my battery now. Yesterday I done 48km ride (1000m elevation) and used 42% of the battery.
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    M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

    hi. Just in case someone needs, I have 43V 410Wh battery kit for sale. Location EU Regards
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    DIY wheels again - EX511 Koozer 450 hd - heavy duty wheels

    Yes. The easiest/cheapest way is to buy some tool on ebay or aliexpress. Use that tool to measure about 5-10 factory wheels to compare roughly what value You should expect. The calibration of the tool is not so important. Most important is experience + even tension of the all spokes. Cheap tool...
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    DIY wheels again - EX511 Koozer 450 hd - heavy duty wheels

    Yes. There is very little tools neaded. Get T handle spoke wrench 3.2mm square for sapim nipples. Stand for truing wheels is not neaded. Instead You can mount the wheel in the frame and use zip tie as a guide for truing. "Dish" the wheel, rotate it 180 deg [so the drive side will be mounted on...
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    DIY wheels again - EX511 Koozer 450 hd - heavy duty wheels

    My thoughts on sunringle rims are very simple, EX511 costs 77eur (fast delivery about 15eur for whole shopping) in bike discount de store. SunRingle at aliexpress cost 51eur + 22eur for delivery (long waiting time), I see no point of getting sunringle rims. Better, stronger, cheaper --> look at...
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    DIY wheels again - EX511 Koozer 450 hd - heavy duty wheels

    I have marked a few stars on the picture. Bigger flange diameter will form a stronger triangle = stronger wheel. Freehub inner bearing is always first to go in my case, so double row bearing should make thinks easier. Steel axle also will be stronger. 120POE (points of engagement) I am only...
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    DIY wheels again - EX511 Koozer 450 hd - heavy duty wheels

    Hi all. Yes, yes.... I have made another set of wheels. This time something strong for heavy duty use. Long story short: BOM: -2x DT Swiss 29'' EX511 32h rims -set of koozer 450 hubs 120hd -32 D-light J-bend spokes - 292mm long -32 Race J-bend spokes - 290mm long -64 Sapim brass niples -a bit...
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    Bafang m820

    Yes. Check input voltage and dismantle motor if neaded
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    Bafang M820 Firmware thread

    The battery % while charging will be higher/incorrect due to voltage drop at internal resistance of the cells. To estimate battery % correctly while charging this voltage drop should be subtracted from total voltage. But it is no so important anyway. Bit of the data: 12s3p battery M58 cells...
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    Bafang M820 Firmware thread

    The best way to get better range is use K1 BBR box. It allows the cells to be discharged to 3.0V (2,8V cut off) , which will give easily about 15-20% more range. The best way to get rid of limp home mode bellow 20% of battery left - install K1 BBR box, press ++-- and in race mode you can have...
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    Bafang m820

    Had a few KM's done since the service was done. The motor noise when pedaling is about the same. The only difference is a bit less rattle when going down the trail. I think this is a result of greasing up one way clutch (which was nearly dry before). I have used shimano shadow rd+ grease, the...
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    M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

    Another DIY battery on the way :D
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    DIY Carbon rim wheelset - BTLOS M-i30AS and ZTTO M1 hub

    Ztto m1 is a copy of dt 240 hub. The main advantage is they are well sealed, which is very important in Ireland. I bought some koozer's to. Got 450 hub set with 120poe. I just can not decide which rims to use for next build. Either Ex511 or the new newmen 30 performance, they are rated up to...
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    Bafang m820

    Molykote PG75.
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    SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

    My X01 chain at 1600km is 0.25%. Might be helpful info. Thx
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    DIY Carbon rim wheelset - BTLOS M-i30AS and ZTTO M1 hub

    The alloy rim wheels with newmen a30 sl rims are also a good option (about the same weight) Light and strong, done about 1800km on my lce930. Regardles ztto m1 hub, had to replace bearings in freehub body after about 1500km. Other than that all OK.
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    DIY Carbon rim wheelset - BTLOS M-i30AS and ZTTO M1 hub

    I am smashing them every weekend. All OK. The only thing I would consider in my case is the rear spokes. I weight about 100km geared up. There is a bit of lateral flex which I like but if I will put 2.6'' tire on the back, it starts to rub on the back swing arm. Must say that I am agrresive...
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