Riding Cannondale Hollowgram or SISL direct mount crank arms? Swap the OPI chainring for this NGeco Road spider and fit a new chainring set to add power and cadence.

Highlights

• Spider power meter for Cannondale SI, SISL and SISL2 road cranksets
• 110 BCD chainrings
• ±2% accuracy, power and cadence
• ANT+ and Bluetooth
• Replaceable CR2450 coin cell, up to 300 hours
• 165g

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

For Cannondale SI, SISL and SISL2 cranksets with a removable spider (not included). Replaces the Cannondale OPI chainring; fit a new 110 BCD chainring set (not included). Mounting the right crank arm needs the power2max lockring tool for FSA, Cannondale and Specialized cranks (ZB-SAX-WZFSA-K01.0000). 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.

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.