The Uberbike Made In Sheffield Oval chainring is designed for use with chainsets featuring 104mm bolt circle diameter, and provides a more even power delivery over standard chainrings, maximising output on the power stroke, and reducing resistance in the dead spot, resulting in smoother more efficient pedal strokes with an increase in traction. Precision CNC machined in Sheffield from aerospace grade 7075-T6 aluminium plate. Hard anodised finish with 'Made in Sheffield' laser etched graphics. Specifically designed narrow wide tooth profile for increased chain retention and mud clearance. 9/10/11/12 speed 1x drivetrain compatible. Use the dropdown menu below to select your chainring size.