Mountain Bike Right Left Crank Arms with S 170MM 104 BCD Aluminum Alloy Crankset for 8/9/10/11 Speed

104mm BCD. 170mm length for crank arm.

tapered crank arms. Good replacement for your mountain bikes. Ftures 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 Chain (optional) Color: Black / Red (optional) Chain Teeth: 34T / 36T (optional) Crank Arm: Material: Aluminum alloy 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