Buddy tells me his Precialps 36t chain wheel has arrived - superbly engineered, very light, offset is approx 5mm less than the std Bafang chunk. He'll be pushing the granny gear a space or so out by rearranging his cassette & derailleur stops - loses a couple of gears (no big deal with a bbshd) but set to achieve a reliable chain line.

With a 36t or more granny (42t Wolftooth?) it should be a torque monster.

 

Apparently Bafang now manufacture a smaller & lighter chain wheel too in response to need, available at Lunacycle.

I have decided I need a bbsdh. Where is the best place to get one and a battery in the UK?

 

these one's are about the best price in the uk

http://eclipsebikes.com/product_info.php?products_id=140

 

and batteries you could try lipo's just 2 x 6s lipo's will give you 50v-ish on a full charge,,

that's what i'm thinking of....., just about to start a bafang bbshd on a downhill bike build...

I wish I didn't sell my old dh bike, It would have been great to convert. I have now got a Bosch powered KTM but this thread is valued because my brother wants to convert his bike and I would like to build a shopper.

Thanks for all replys