TA Specialite Zephyr chainring

The outer TA Zephyr chainrings with a 110mm bolt circle are compatible with road bike compact cranksets. These chainrings have a symmetrical 5-hole/arm mounting and are not compatible with newer asymmetrical crank mountings

Compatible with 8-, 9- and 10-speed MTB and road bike cranksets:

The standard chainrings are designed for 9-speed chains, but can also be used without any problems with 8- and 10-speed chains and cranksets. On the crankset, 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 gap between the individual chainrings should not exceed 12 teeth. Otherwise, you will have to accept compromises in shifting performance. For chainring setups with the largest chainring from 46 teeth upwards, please use Shimano XT front derailleurs with a compatible cage. Road bike front derailleurs generally shift up to 55 teeth without any problems.

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/