The Syrius chainring is compatible with all 10/11V transmissions. The Syrius can be mounted on all brands of road cranksets with 5 spoke spacing, 110mm compact classic. Manufactured 100% CNC from aeronautical quality aluminum alloy 7075 T6, making it both light and rigid.
For perfect shifting performance, we strongly recommend pairing it with the inner Syrius 11, with a size difference of between 12 and 16 teeth. 100% Designed and manufactured in France. Origin: France Material: Aluminum 7075 T6 Fitment: ø110mm/5 branches Speed: 10/11 Speed
Position Inner: 34, 36, 38, 39 teeth Outer: 42, 44, 46, 48, 50, 51, 52, 53 teeth