Specifications:170mm Crank arm.104BCD.Hollow Integrated.Comes with BB91 threaded bottom and crank dust cap. Crank dust cover effectively protects the crank.Wide and narrow tooth single speed round chainring.weight:around 825g
Material:7075 T6 Aluminum Alloy Crankset.The crank arm and chainring is Aluminum Alloy.Rugged and durable, Precision tooth shape,smooth shifting.High strength removable chainring,Easy to retrofit.The shaft is made of Chrome Molybdenum Steel,Improve the stability of crank and hollow shaft
Bottom Bracket: BB91 threaded bottom bracket,BB91 BC1.37 * 24T suitable for 68-73mm bottom bracket MTB, Road bike.Built-in bearing with high lubricity.Smooth pedaling and noise reduction.Contains aluminum alloy gasket *3
Internal weight reduction design,Make cranks lighter.It is fixed with multiple threads.make the crank force more direct.CNC machining process, And surface heat treatment process forging.Higher strength
Wide and narrow tooth design to prevent chain drop.Strong bite force, efficient transmission.Reasonable price, practical functionality and long service life. It is acceptable to most people. If you have any questions, feel free to contact us