ROTOR Q-RINGS 39-tooth chainring

Q-rings improve the pedal stroke due to reduction of the dead spot. This allows you to ride upright longer while climbing and reduces fatigue of the muscles. Besides, the cardiovascular
endurance (endurance of heart and lungs) is improved.
· 10 % ovality
· OCP(Optimum Chainring Position): 5
· material: aluminium 7075 T6, CNC treated
· compatible with Rotor, SRAM, FSA and others
· compatible with 10-/11-speed chains
· available with bolt circle Ø 130 mm, 39 teeth (internal installation)