Features:
1. Made of premium aluminium alloy, hollow design, which is lightweight, adding no heaviness to bike.
2. High strength and deformation resistance, durable for long time use.
3. Standard precision machining, which ensures ultimate chain retention, increases service life, and reduces friction and noise.
4. 170mm crank arm length without any overlap of crank arm and chain ring bolt.
5. An ideal replacement for bike repair, compatible with many bike models.

Specification:
Material: Aluminium Alloy
Color Options: Black; Red; Blue; Gold

BCD: Approx. 104mm/4.1in
Arm Length: Approx. 170mm/6.7in
Fit for: Single Speed Only
Weight: Approx. 715 g

Package Included:   
1 * Pair of Crank Arms
1 * Bottom Bracket Cover
4 * Bolts

(Bottom Bracket & Chain Ring Not Included)