ROTOR Chainring Road QRings 110mm Inside For Shimano 9000

Oval ringsets for maximum power Q-Rings can increase an avid cyclistu2019s performance by as much as 4 seconds per km in a sprint u2013 thatu2019s twice the benefit of an aero wheelset! Professionally, athletes who have chosen to ride them have put to rest any doubts about their performance by winning two grand tours, more than 25 Ironman races and over 20 UCI elite Road, MTB and CX world champion titles. Why Q-Rings? Q-Rings boost your performance by varying drivetrain resistance during pedalling in line with your legs natural strengths and weakness. They make better use of the strongest muscle groups (increasing positive work) and compensate for the weaker zones in the pedalling stroke (reducing negative work). Compatible with every crankset in the market. Click on the link below to check your compatibility: Warning,Only for new Shimano 9000 BCD 100mm x 4 Checked weight by Alltricks : 92 grs (36 teeth)