Specifications:<br><br> Material: 6061 Alloy Crank Arm&7075 Alu 30T ring<br> BCD: 104 mm<br> Crank Arms length: 170mm<br> Fit For: 9s/10s/11s MTB BMX Road Bike XC rail<br> Bottom Bracket: 68~73mm, threaded BB included in the parcel<br> Color: Black<br> Crank Screw Diameter: 18mm<br> Chainring Size: 32T<br> Shape: Crown<br> Chainring Bolts: plating Process<br><br> Package Includes:<br><br> 1 x one fordged crank set<br> 1 x Bottom Bracket<br> 1 x 32T Chainring<br> 4 x Chainring bolts(set)<br> 1 x M18 crank screw<br> 1 x Crankset bolt Allen Wrench<br><br> FAQ<br><br> Q: How many teeth on this crankset?<br> A: 32 Teeth<br><br> Q: What is the lenght on this arm?<br> A: 170mm<br><br> Q: Does this Crankset come with both crank arms or just the drive side?<br> A: Come with both<br><br> Q: What pedal size does this Crankset work with? 9/16 or 1/2?<br> A: 9/16"<br><br> Q: What is the BCD of this Crankset?<br> A: 104mm<br><br> Q: What chain width does it use?<br> A: Standard 1/2" X 1/8"<br><br> Q: Does this work on a square taper Crankset?<br> A: It is a crankset made for hollowtech bottom brackets<br><br> Q: What size bottom bracket should be used for a single speed bike?<br> A: Shell Width is 68~73 mm, Spindle Length depends on the frame you are using - if you can get it from the manufacturers website, that would be the best bet<br><br> Q: Does this Crankset come with a bottom bracket?<br> A: Yes