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My ebike battery is pretty much bolted to my bike frame and isn't easily removable. I'm not riding during the winter and the bike is in a closed bike-shed in my garden. I discharged the battery to the cell storage voltage (3.7V / cell) before putting it away and unplugged the battery from the...

I have Multiple Sclerosis but I also love cycling. This causes me a bit of a problem as when exhaustion hits, it hits hard. I decided to convert my Saracen Ariel 3 to electric. After considering various hub motors and the BBS01/02 range, I eventually settled on the BBSHD as having sufficient...

I've decided to build my own 14S (52V) pack from either LG HG2 or Samsung 30Q cells to drive my BBSHD. Where is the best place to buy a large quantity of cells (either 56 to make 14S4P or 70 to make 14S5P) to ensure they are genuine cells? I'm scared to death of getting fakes. Oh, and what BMS...

I'm trying to work out how much room I need for the secondary reduction gear and clearance for my chainstays. Does someone have the exact measurements for the diameter for the secondary reduction gear housing? I'm seeing several different measurements from 60mm to 70mm and it will make a big...

Hey all. I've been measuing up my frame ahead of a BBSHD purchase but I'm unsure about my numbers so could do with someone more knowledgeable checking them for me. BB is a normal square taper 68mm item so we're all good there. What I'm concerned about is the version of BBSHD I need to clear the...

I'm still trying to decide whether to go with a BBS02/01 or a Q128C for my MTB. I prefer the simplicity and clean build of a hub motor but I've read on another forum that the Q128C will bog down at low speeds or on hills (not very steep on my usual rides. Maybe 15%). What's it like at low speeds...

Hey all. First time post but been lurking for a while, gaining tons of useful information. I'm looking to convert my MTB to electric and have pretty much decided on a Q128C 201RPM 36V rear hub-drive motor. I've been considering crank-drive kits but I think the hub-drive may be better for me as...