Rotor R-Raptor Crank Arms
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This item is "Final Sale" and cannot be returned or exchanged
This item is "Final Sale" and cannot be returned or exchanged
This item is "Final Sale" and cannot be returned or exchanged. Once the order is processed, labeled, or shipped, the order cannot be canceled.
Every item goes through quality control prior to shipping. If there are any imperfections or issues, you will be notified prior to the order being processed.
Items on "Final Sale" are for online only. These items are not at our physical stores for purchase.
Pickup available at RA Cycles - Brooklyn
Normalmente pronto em 24 horas
Questions about this product?
Questions about this product?
Rotor R-Raptor Crank Arms
Rotor R-Raptor Crank Arms Info
The Rotor R-Raptor Crank Arms were designed around a straightforward idea: one set of arms that can adapt to multiple bikes, bottom bracket standards, and chainring setups rather than locking you into a single configuration. The arms are CNC-machined from 6082-series aluminum — the same material Rotor uses throughout their component lineup — for a stiffness-to-weight ratio that a traditional crank-and-spider arrangement struggles to match.
These arms are the foundation of the Rotor modular crank system. They attach to a 30mm spindle — compatible with nearly any bottom bracket standard that accepts a 30mm axle, including English-threaded shells of varying widths — and are designed for 1x drivetrains only, with support for both round and Q-ring chainrings. Crankarm fixing bolts are included. To complete the build, you'll need a compatible Rotor axle, your chosen chainring, and optionally crankarm bumpers — all available separately.
Rotor R-Raptor Crank Arms Specs at a Glance
- Material: CNC-machined 6082 aluminum
- Spindle diameter: 30mm
- Chainring compatibility: 1x only — round or Q-ring
- Available lengths: 165mm, 170mm, 175mm
- System weight (175mm arms, standard axle, 30T ring): 715g
