China Xa305p7 Bicycle Crank & Chainwheel Alloy Crank 170mm and Steel Chainring 24t/34t/42t with Plastic Chainguard, Find details about China Chainwheel, Bicycle Crankset from Xa305p7 Bicycle Crank & Chainwheel Alloy Crank 170mm and Steel Chainring 24t/34t/42t with Plastic Chainguard