Rotor Crank Spider Aero MAS Road 110x4 1X/2X Brakes Behind the Overcurve R4’s lies

Behind the Overcurve R4’s lies an advanced construction technique: a resilient

ultra-dynamic colors to customize your ride and celebrate your unique cycling personality: from moody black to zesty lime

Labyrinth seals prevent bearing contamination

ensuring maximum blood flow

Rotor Crank Spider Aero MAS Road 110x4 1X/2X Brakes Behind the Overcurve R4’s liesThe Aero MAS Spider is engineered to provide minimal air resistance, reduce drag and allow you to pedal faster with less effort. It is compatible with road modular cranks ALDHU and VEGAST and power meters 2INpower and INpower. Select the perfect chainring size from our 1x 2x 110x4 Q RINGS or Round range.