Blue Lug RMC Track Crank Set (All Black) Designed by Blue Lug, the RMC Track Crank Set combines classic track styling with dependable performance. Featuring slim forged crank arms and a distinctive hollow 46T chainring, this crankset delivers a clean, timeless look that's perfect for fixed gear and single speed builds. Whether you're building a new track bike or refreshing your current ride, the RMC offers excellent value, durability, and style. Features Original Blue Lug RMC Track Crank Set. Clean all-black finish. Slim crank arms with a hollow 46T chainring. Ideal for track, fixed gear, and single speed bicycles. Includes chainring, chainring bolts, and crank caps. Available in 165 mm and 170 mm crank arm lengths. Specifications Chainring: 46T Chain Compatibility: 1/8" BCD: 144 mm Bottom Bracket Interface: Square Taper (JIS) Recommended Bottom Bracket Length: 110 mm to 113 mm Crank Arm Lengths: 165 mm or 170 mm Colour: All Black Compatibility Notes Designed specifically for single speed and fixed gear drivetrains. A multi-speed crank can be used on a single speed bike, but a single speed crank is not suitable for multi-speed drivetrains. Some frames with wide chainstays, such as certain mountain bikes, may have clearance issues. Please verify compatibility before installation.