* High quality crankset for fixed gear / track / single speed use.* Green anodized 165mm Crank arms / 46T chainring * 68 x 103mm English threaded bottom bracket included* 130mm B.C.D* JIS Square Taper* 9/16" pedal size* For use with 1/8" chains * Manufactured to JIS standards.* 45mm chainline when used with included bottom bracket(Not for use with Campy or ISO Taper bottom bracket)These are solid single speed cranks meant to take the abuse of fixed gear and street riding. Classic design similar to old school high-dollar track cranks, but at a fraction of the price. Check our store for other colors and sizes.USA SELLER - DELIVERED IN DAYS, NOT WEEKS!FREE Shipping: USPS Priority mail(All 50 states, territories, Puerto Rico, APO FPO, Palau) Returns are on a case-by-case basis. We accept returns for 2 reasons: Defective item, or sent the wrong item. We do NOT accept cancellations because sellers are charged for them. Purchase wisely. Ask us questions if you are unsure, we love to help.