Bike Crank Arm 170mm Bike Crank Arm Bike Aluminum Alloy Left Single Chain Crank Arm Replacement for Road Bike Mountain Bike Folding Bike Fixed Gear Bicycle White

Why choose our bike crank arm? 1.Made of premium aluminium alloy, lightweight, high strength and deformation resistance, durable for long time use. 2.Fine polish and great paint, colorfast and stylish. 3.Standard precision cutting of hole, which ensures perfect fit to bike, easy to install. 4.170mm crank arm length without any overlap of crank arm and chain ring bolt. 5.A nice replacement for bike repair, compatible with many bike models. Specification: Material: Aluminium Alloy Options: Black-Square Hole; Black-Rhombic Hole; Silver-Square Hole; Silver-Rhombic Hole Size: Approx. 21 x 4 x 3cm / 8.27 x 1.57 x 1.18in Hole Distance: 170mm Fit for: Left side Weight: Approx. 200-214g Package Included:    1 x Crank Arm