Features1High Strength: Our bike crankset is made of high strength aluminum alloy material, which is light in weight and stylish in appearance. 2Precise Machining: The multi stripe fixing method ensures the ultimate chain retention, extending working life and reducing friction and noise. 3Dimension: BCD: 104mm, 4.09in, crank arm length: 170mm, 6.69in, 32T positive and negative teeth chainring, 3234T chainset, check the size before use. 4Strong Compatibility: The bike crankset is suitable for most mountain bikes and road bikes on the market, with strong compatibility. 5Delivery: This bike crank arm set includes a crank set, positive and negative teeth, guards chainset, a full set of accessories, and can be used with confidence.SpecificationItem Type: Bike CranksetMaterial: Aluminum AlloyGross Weight: 755g / 26.6ozCrank: Approx.170mm / 6.7inCompatible: single disc, double disc, triple discSpecifications: BCD Approx.104mm / 4.1in, Inner BCD Approx.64mm / 2.5inPackage List2 x Crank4 x Screw4 x Nut1 x Positive and Negative TeethChainring1 x Guard Chainset