DescriptionModel Number : fx17Use : Mountain BikesMaterial : Aluminum AlloyCategory : Suitstyle 1 : Bicycle Crankset 104BCD MTB Bike Crankstyle 2 : bicycle crank chainwheel 104BCD MTB Bike Cranksetstyle 3 : Aluminum Alloy With Bottom 170mm crank black 32T 34T 36T 38T platestyle 4 : 104BCD 170mm Cranks 32/34/36/38/40/42T Sprocket with Bottom Bracket Mountain Bicycle CranksetBrand: MEROCAModel: FX17BCD: 104Color: black/red/blueBottom Bracket: BB 68/73mmWeight: about 665gMountain bike crank 104/64mm BCD design, CNC cutting, flat and sharp thread, compatible with three gears.The crank length is 170mm, made of high-strength aluminum alloy; chrome-molybdenum steel 24mm hollow one-piece shaft, matching BB68-73mm bottom shaft, providing higher precision, durability, and water resistanceSNAIL 104BCD disc, thickness 4mm, toothless design, better connection and fit the bicycle chain.