absoluteBLACK 4 Bolt Narrow Wide Chainring - 104 BCD - Oval - Black - 12 Speed Shimano - 32T YGroup_7033459310637 Clamp Compatibility: I-SPEC EV

Clamp Compatibility: I-SPEC EV

and presses cartridge bearings and cups into one piece bottom brackets

Crown Race Seat Dia

while the wide single clamp sits behind a subtle inner flange for added security — holding bars firmly in place through rough terrain

absoluteBLACK 4 Bolt Narrow Wide Chainring - 104 BCD - Oval - Black - 12 Speed Shimano - 32T YGroup_7033459310637 Clamp Compatibility: I-SPEC EVabsoluteBLACK is dedicated to producing the world's finest oval chainrings and were the first to crack the code to discover the correct shape and 'clocking' to make an oval chainring work. They learned how to maximize the part of the stroke where power is produced and minimize resistance where it isn't which has the effect of smoothing out the delivery of power throughout the pedal stroke and improving efficiency. Many other brands have followed suit