Hi to all. I have a M2S Ultra HT bike with a Bafang M620 mid drive. The bike came with a 40T chainring and a 11/34 cassette. I think I'd like to slow down the low end to make the bike better when climbing on rocks and ruts. I don't care about top end.
Can anyone recommend a supplier / part number for something like a 5 bolt 130 bcd 34T that would be suitable for this torquey bike?