Dimension: approx. 181*114mm / 7.1*4.4in (crankset), 205*34mm / 8.1*1.3in (crank);Burly and lightweight forged crankset for ultimate strength and reliability; These are intended to be used on single speed Mountain Road Bike Fixed Gear Bicycle
Compatible with 9/16 inch pedals; 1/2"*1/8" chain work well on this crankset
If your bike is 2" cup, pls use a bottom bracket converter (need to buy from your local shop)