Purchase Qty. Reference FOB Price
1,000-2,999 Sets US$3.00
3,000+ Sets US$1.80
Product Description
Bike chain Chains, gears and pulleys on a bicycle, whose function is to reduce the number of friction points in the drivetrain. Its working principle is to use the forchaince released by the cyclist to penetrate the drum teeth so that the bicycle can realize the power of forward operation. The loss ...