Mountain Bike Right Left Square Crank Arms with Bolts 170MM 104 BCD Aluminum Alloy MTB Bicycle

Good replacement for your mountain bikes.

Features: 104mm BCD. 170mm length for crank arm. Squre tapered crank arms. Compatible with 8 / 9 / 10 / 11 speed. Aluminum alloy material for light weight and strong strength. Suitable for most mountain bikes. Specification: Model: 2pcs Crank Arms / 2pcs Crank Arms& 1pc Chainring (optional) Color: Black / Red (optional) Chainring Teeth: 34T / 36T (optional) Crank Arm: Material: Aluminum Compatible: 8/9/10/11 speed Fits pedal size: 9/16" BCD: 104mm Length: 170mm Weight: approx. 510 g / 18.0 oz (for a pair)

Package List: 1* Right Crank 1* Left Crank Arm 4* Pair of Bolt