Introducing the new Rotor Aldhu Direct Mount Chainrings. The Direct Mount is CNC'd from a block of 7075 aluminum to save more than 30 g over a standard chainring combo which, together with ALDHU crank arms, becomes ROTOR's lightest crankset ever. The ALDHU 3D+'s innovative modular structure makes each component individually available to accommodate the current spectrum of riders and bike standards.
The Rotor Aldhu Direct Mount Chainrings are available in three sets: 53/39t, 52/36t, and 50/34t.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
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A guide to understanding and calculating bicycle gear inches.