Can I install the Sigeyi power meter on my Cannondale crankset with 120 BCD?

This Sigeyi AXO Cannondale Road Power Meter is compatible with all models of Cannondale’s Hollowgram cranks: SI, SISL, and SISL2. It also fits the Cannondale ONE crankset. The power meter comes in a standard BCD size of 110×5. If your Cannondale crankset currently uses this size BCD, you should be able to use your existing chainring on the power meter.

Sigeyi AXO Cannondale Road Power Meter

However, some Cannondale cranksets have a larger, 120 BCD. In this case, you can still install the Sigeyi power meter on your Cannondale road crankset, but you would need to purchase new 110×5 chainrings to use with it. We usually recommend Praxis chainrings with the Sigeyi Cannondale power meter, however we have several other brands that will work.