The Tacx jockey wheels are manufactured from a resin composite that is very resistant to wear and equipped with quality precision bearings that will not get stuck, show wear or squeak. Tacx jockey wheels are available with 10 teeth and 11 teeth and for SRAM Race and MTB. For extreme circumstances, such as mountain biking or cyclo-cross, Tacx have jockey wheels equipped with stainless steel bearings. Top of the bill are the wheels with ceramic bearings that run extremely smoothly for the highest performance.