BOLANY Bike Cranksets 170mm Hollow Integrated 104BCD Single Speed Round Chainring 34T/36T MTB Crankset with Bottom Bracket

Tried to jump a curb when I landed it broke soo don't buy it

Sin compliciones y sin problemas, solo deberian añadirle al kit herramienta para hollowtech

Good crankset so far. It's basically a SHIMANO ZEE but half the price. Item comes in a nicely packaged box. My biggest fear was that this thing would fall apart but so far everything seems to be solid. I put over 100 miles on it. I converted my old 8-speed 3x to a 1x. Old crank used a square taper BB. This one appears to be hollowtech II. One thing to note is that the BB comes with two spacers and you're supposed to use one spacer on the drive side if your bike frame accepts a 73mm BB. But that caused the chain to fall off from the crank when I was in the lowest gear (largest cassette ring) in the back because the chainline was too crossed. So I had to remove the spacer and no more chain drops. I went with 36T chainring version and it seems to be adequate. You'll run out of gears when descending on pavement. If you don't want that to happen you can buy a 42T chainring. Chainring is narrow-wide type.

They are quiet nice to be honest they feel firm and they doesn’t seem to be weak or bad material I used them in the snow and also in a ride up and they did more than well, recommend

I bought this crank to convert my vintage mountain bike to a big bmx I rode it about four times popping wheelies and jumping a few curbs and the threading broke do not buy this if you are a serious rider