HIGH QUALITY: Made of premium aluminium alloy, which is lightweight, the crank arm is durability and strong.
EFFECTIVE PROTECTION: High strength and deformation resistance, durability for long time use.Standard precision machining, which ensures chain retention, increases service life, and reduces friction and noise.
SUITABLE FOR: 170mm crank arm length without any overlap of crank arm and chain ring bolt.high axial strength and compatibility.
PERFECT SUBSTITUTE: An ideal replacement for bike repair.Suitable for road bike, mountain bike, folding bike, fixed gear bicycle, etc.
SATISFACTION GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days.