Already own a Rotor crankset? The NGeco 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
• ±2% accuracy, power and cadence
• ANT+ and Bluetooth
• Replaceable CR2450 coin cell, up to 300 hours

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.

Simple, reliable data

The NGeco measures total power and cadence at the spider, so there are no pedal or crank-arm sensors to swap between bikes. Active temperature compensation and automatic zero-point adjustment mean no manual calibration, and the CR2450 coin cell is user-replaceable and lasts up to 300 hours.

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.

Options

Button battery warning: this product contains a button/coin cell battery. A lithium battery can cause severe or fatal injuries in 2 hours or less if it is swallowed or placed inside any part of the body. Keep batteries out of reach of children. If you think a battery may have been swallowed or placed inside any part of the body, seek immediate medical attention.