Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.
The Aldhu Crank arms are Rotor's lightest cranks to date. Featuring an innovative modular structure, the Aldhu allows the rider to select each component individually for a perfectly tuned crank set.
In keeping with their 3D+ crankset, these crank arms are constructed out of aeronautic grade 7055 aluminum alloy and fully CNC-machined, the Aldhu provides outstanding stiffness-to-weight ratings and an impressively low weight.Incorporating Rotor's OCP Mount technology, fine tune the placement of Rotor's Q-Rings, or easily place standard round rings.
- Modular crankset allows for complete control over each component, with the lightest cranks Rotor's made yet.
- CNC-machined 7055 aluminum alloy construction.
- Optimal Chainring Position with one-degree adjustments.
- Direct-Mount with Aldhu 3D+ spindle and spider.
- Q-Factor: 147 mm.
- Chainline: 43.5 mm.
- Manufacturer warranty: 2 year limited.
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A guide to understanding and calculating bicycle gear inches.