Achieve smooth shifting and maximum durability. Length: 126 links. Uses: highway, mountain bike. -The front drive makes the chain stable on the center line of the cross chain, and the rear drive is noiseless and the drive is stable.

Achieve smooth shifting and maximum durability. Length: 126 links. -The front drive makes the chain stable on the center line of the cross chain, and the rear drive is noiseless and the drive is stable.