Rotor Chainrings Round 110X4 Aero Variant:Rotor Chainring Aero Round BCD110X4 54T (for 39) Outer Black Drop-tail bib construction for more

Drop-tail bib construction for more convenient nature breaks

For those days when you need to cover your knees but it's not quite cold enough for long tights

5-panel construction for reduced seams and less chafing

Available in two sizes with a 75-pound or 100-pound carrying capacity

e-bikes and touring bikes

Rotor Chainrings Round 110X4 Aero Variant:Rotor Chainring Aero Round BCD110X4 54T (for 39) Outer Black Drop-tail bib construction for moreWe poured all of our experience in oval Q RINGS development into producing an innovative Round Chainrings solution. Machine CNCd from ultralight aeronautic grade 7075 aluminum, our new look 4 arm chainrings are compatible with our lightweight ALDHU crankset as well as all Shimano. 4 bolt cranks. Combined with our new ALDHU spider and crankset, the clever spline interface between the axle delivers a robust yet smooth engagement allowing you to maximise