Already own a Rotor crankset? The NG Rotor ALDHU spider adds power to ALDHU, ALDHU carbon and VEGAST cranks, and the 110-4SL option keeps your Shimano road chainrings.

Highlights

• Spider power meter for Rotor ALDHU, ALDHU carbon and VEGAST cranksets
• Supports 24mm and 30mm axles
• 110-4SL option takes Shimano Road 11/12-speed chainrings
• ±1% accuracy; L/R balance and pedal smoothness
• ANT+ and Bluetooth
• Rechargeable, up to 150 hours per charge

Keep your Shimano shifting

With the 110-4SL version, existing Shimano Road 11-speed and 12-speed chainrings can continue to be used, so shifting performance is maintained. The 110-4SL saves 30g compared with the regular 110-4S version.

Rechargeable and precise

The NG measures at the spider with ±1% accuracy and adds left/right balance and pedal smoothness to power and cadence. Active temperature compensation and automatic zero-point adjustment mean no manual calibration, and the rechargeable battery runs up to 150 hours per charge.

Compatibility & fit

Requires Rotor ALDHU (30mm or 24mm axle), ALDHU carbon, VEGAST or P2M by ROTOR crank arms (not included; we list ALDHU and P2M by ROTOR crank arms separately). Designed for a Q-factor of 147mm. Chainrings not included. Our workshop can fit the power meter to your crankset and pair it with your head unit as a separate service, not included in the price.

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