- Alps2Ocean Diamond-Crank 160 mm crank arms, made from forged 6061-T6 aluminum alloy for maximum strength and durability - Black sand finish provides protection and style - Spindle interface with diamond hole, compatible with square taper systems - Includes two crank arms (left and right) and bolts for secure installation - Compatible with electric bikes, MTB, road, city, folding, and stationary bikes - Easy installation thanks to L (left) and R (right) identification on the arms - Recommended for those looking to upgrade or replace their bike's crank arms - Check the length and hole type before purchase to ensure compatibility - Robust product, ideal for intensive use and cycling enthusiasts