Rainbowrock Mountain Bike Crank arm Crank Set-Crankset Crank Set-Chain Arm Set 1Pair 170MM Mountain Road Bike Alloy Single Crankset Repair Parts Accessory(Black)

Features: ?High Quality?Crank arm bike accessory is made of premium aluminium alloy, hollow design, which is lightweight, adding no heaviness to bike. ?Excellent Performance?Crankset repair parts accessory with high strength and deformation resistance, durable for long time use. ?Durable?Mountain road bike accessory adopt standard precision machining, which ensures ultimate chain retention, increases service life, and reduces friction and noise. ?High Practicality?170mm crank arm length without any overlap of crank arm and chain ring bolt. ?A Good Replacement?A good replacement for bike repair, compatible with many bike models. Specification: Material: Aluminium Alloy Color Options: Black; Silver BCD: 130 mm (suitable for 107-100mm) Arm Length: 170 mm/ 6.7 inch Fit for: pedal diameter = 9/16 The distance from the center of the plate nail to the center axis: Approx. 65mm / 2.6in Applicable bottom bracket: Approx. 107-110mm / 4.2-4.3in Weight: Approx. 555 g Package List:    1 * Pair of Crank Arms