**MTB Bicycle Crankset - 104BCD, Square Hole, 170mm Crank, Narrow Wide Chainring (32/34/36/38/40/42T) - Durable Mountain Bike Part for Off-Road & Trail Riding**

Crank Description:BCD:104BCDLength:170mmWeight:580.3g(CA.)Material:Aluminum AlloyFit BB:Square HoleFit Chainring:Single/Double/Triple ChainringCompatible With:8/9/10/11 SpeedPackage included: Crank with gift screwsChainring description: Type: Single-tooth positive and negative plate (circular disc / oval disc)Material: 7075-T6 aerospace aluminum alloyColor: Black,RedThickness: 4MMBCD: 104MMCompatible with 8,9,10,11 speed chainSize:32T, 34T, 36T,38T,40T,42TShape: Round, OvalRound Weight: about (38g)/32t,(50g)/34t,(57g)/36t,(70g)/38t(88g)/40T(102g)/42TOval Weight: about (40g)/32t,(49g)/34t,(59g)/36t.Oval Chainring Features:The oval chainring is more labor-saving for climbing, which is better than the round chainring. When pedaling vigorously, it is equivalent to using a large chainring. When pulling with a small force, it is equivalent to using a small chainring.

Type: Single-tooth positive and negative plate (circular disc / oval disc)

Material: 7075-T6 aerospace aluminum alloy

Color: Black,Red

Thickness: 4MM

BCD: 104MM