Elliptical 104 BCD Hyperglide+ Chainrings Options:Elliptical 104 BCD Chainring - 34t, 104 BCD, 4-Bolt, Requires Shimano 12-Speed Hyperglide+ Chain, Black and flat head bits

and flat head bits

*56cm in the lightest colorway

and the helmet angle can be adjusted for compatibility with glasses

Pro Race 229 (2012)2023 )

Elliptical 104 BCD Hyperglide+ Chainrings Options:Elliptical 104 BCD Chainring - 34t, 104 BCD, 4-Bolt, Requires Shimano 12-Speed Hyperglide+ Chain, Black and flat head bitsThe Wolf Tooth Elliptical 104 BCD chainring for Shimano 12 speed Hyperglide+ chain is designed to fit any 104 BCD crankset. The tooth profile was developed specifically for Shimano's XTR, XT, and SLX 12 speed Hyperglide+ chain. Its proprietary Powertrac design has an ovality of 10% and a timing of 112 degrees after top dead center, providing benefits such as greater rear wheel traction. Compatible only with Hyperglide+ chains The Powertrac elliptical