Tacx SRAM XD-R Body (Type 2) therabody They have a lighter spring

They have a lighter spring tension optimized for beginner riders

they represent the ultimate expression of the innovate or die attitude that has inspired Specialized for the last 50 years and continues to drive us into the future

This translates to faster acceleration

Every fueling moment needs to count

* % Nutrient reference value

Tacx SRAM XD-R Body (Type 2) therabody They have a lighter springThe standard body of a Tacx direct drive trainer is not compatible with all cassettes. Use this body to mount your SRAM XD R cassette. Its easy to install, and all youll need is a 5 mm hex key. The SRAM XD R body is compatible with 11 and 12 speed SRAM XD R cassettes. This version is used for trainers with Type 2 axles.