Theory Conversion Sealed 1-1/8" Standard Threadless to Integrated Headset for 45/45 68x113mm The tread features a BMX-style

The tread features a BMX-style rounded profile block tread with shallow siping for improved bite

the FASTR REACT adds distinctive rows of paddle-like serrated shoulder treads designed to better “lockdown” the tire during hard acceleration to more efficiently transfer the power of each pedal stroke into forward momentum

125 tires (507mm)

Color: Red w/ Gumwall

Theory Conversion Sealed 1-1/8" Standard Threadless to Integrated Headset for 45/45 68x113mm The tread features a BMX-styleThis sealed bearing headset fits standard, traditional and 45 45 integrated 1 1 8" headtubes. An aluminum dust cover cap and spacer and steel fork bearing race are included. Color: Black