Road bike chainring TA Specialite Syrius 11

These TA Specialite chainrings are designed for Shimano and SRAM compact road bike cranksets. With 2-speed cranksets, no shifting aids are required for the small chainring. These chainrings have a symmetrical 5-hole/arm mounting and are not compatible with newer asymmetrical crankset mountings

Compatible with 9-, 10- and 11-speed road bike cranksets:

The compact chainrings are designed for 11-speed chains, but can also be used without any problems with 9- and 10-speed chains and cranksets. On the cranksets, the spacing between the chainrings is determined by the crank arms. Therefore, it does not matter whether you use 8-speed, 9-speed or 10-speed chainrings. Please note that the difference in tooth count between the individual chainrings should not exceed 12 teeth. Otherwise, you will have to accept a reduction in shifting performance.

To determine the bolt circle diameter, please measure the distance between two adjacent holes (centre-to-centre) and multiply this value by 1.7. This will give you the bolt circle diameter.

Herstellerinformation: Spécialités T.A., 41 bis rue de Laon, 02150 Sissonne, France, https://specialites-ta.com/