best quality chainwheel and crank for sale1.we are factory2.high quality3.with ISO90014.reasonable priceSpecifications&colo...
chainwheel:
Model
HM-QB-01
Chainring
46T/34T
Outer ring
Alloy SB BK, or Anodized CNC
Center ring
N/A
Inner ring
Alloy SB BK Anodized
Ring Fixation
Interchangea...