CUSTOM BIKE PRO ULTRA CYCLING INSOLESInspired by our collaboration with the Astana Pro team, the new Custom Bike Pro Ultra insole improves the energy transfer of your shoes, for more efficient and fluid pedalling. Its PODIA FIBER structure, exclusively developed by SIDAS, offers 6 to 7 times more rigidity under the foot while maintaining minimum thickness and weight. With each rotation, the transfer of forces from the foot to the pedal is optimised, without compromising the comfort and