The TA Specialite Horus 11 chainring, 135 mm bolt circle, Ultra Torque 2010–11, fitted as a large 52-tooth chainring
The TA Specialite Horus 11 chainrings are designed for Campagnolo Ultra Torque 11-speed cranksets and feature the appropriate mounting for the Ultra Torque crank arm
The 135 mm bolt circle is the Campagnolo road bike bolt circle for cranksets with the Race spline. The smallest chainring that can be fitted is a 39-tooth, whilst the largest can be up to 60 teeth. This bolt circle is used exclusively by Campagnolo
Compatible with Campa Ultra Torque cranksets, 2010/11 models
Please note that the difference in tooth count between individual chainrings should not exceed 14 teeth. Otherwise, you will have to accept a reduction in shifting performance.
Herstellerinformation: Spécialités T.A., 41 bis rue de Laon, 02150 Sissonne, France, https://specialites-ta.com/