absoluteBLACK Cannondale Spidering Chainrings

These chainrings are designed specifically for Cannondale Hollowgram Si, SiSL, and SiSL2 cranksets. They use a direct-mount interface, so they will not fit standard bolt-pattern cranksets.

Yes, you will likely need to adjust your front derailleur height and limit screws. Because the chainring diameter changes throughout the pedal stroke, proper derailleur setup is essential to maintain the crisp shifting performance these rings are designed for.

Most riders notice a smoother, more consistent power delivery, especially during climbs or when accelerating. The oval shape is designed to reduce dead spots in your pedal stroke, which can help lower joint stress and improve overall efficiency.

Yes, these chainrings are fully compatible with both 10-speed and 11-speed drivetrain systems. They are engineered to work seamlessly with standard chains and shifting components.

Yes, by eliminating the need for a traditional separate spider, this design reduces overall system weight while maintaining structural rigidity. It is a cleaner, lighter setup compared to standard bolt-on chainring configurations.

It might take a few rides to adapt, but most cyclists find that the oval shape actually makes it easier to maintain a steady, fluid cadence. The design helps smooth out the power peaks and valleys, which can feel more natural once you adjust to the rhythm.