Retrospec Bicycles Fixed-Gear Crank Single-Speed Road Bicycle Forged Crankset
- Burly and lightweight three-piece forged crankset for ultimate strength and reliability^170mm crank arm length without any overlap of crank arm and chainring bolt^All new crank arm design—much stronger for faster and more aggressive riding^Fits on road, mountain, fixed-gear, BMX, track, and single-speed bikes^Standard Bolt Circle Diameter (BCD): 133
This is the new and improved three-piece Mantra crankset from Retrospec Bicycles. Forged like never before, it’s denser and burlier but still lightweight. The alloy crank and steel chainwheel will allow you to ride more efficiently with a smooth cadence day in and day out and in turn reduce the need for constant maintenance. This crankset is the force behind your bicycle, whether your riding fixed or single-speed. Available in a variety of bright colors and sizes to make it easier for you to customize your ride.