The chainwheel and crank are made of high quality aluminum alloy｣ｬ great for bicycle refitting.

Features:
Durable CNC aluminum alloy construction.
5 bolts fixing.
Suitable for 119mm bottom bracket axle.
Great for bicycle refitting.

Specifications:
Material: Aluminum alloy
Teeth: 52T
Color: Black
Crank Length: 170mm / 6.69in
Chainwheel Size: 30 * 22.5cm / 11.81 * 8.86in
Total Weight: 815g / 1.80lb
Package Size: 30 * 22 * 3cm / 11.81 * 8.66 * 1.18in
Package Weight: 824g / 1.82lb

Package List:
1 * Chainwheel
1 * Crank