Delivers maximum pad volume for endurance racing, especially where a four-piston, two-piece caliper is required, such as the Grand-Am Continental Tire Sports Car Challenge GS class (link to a press release where Turner wins the championship). Supports wide- and standard-annulus rotors.

 




Offers increased pad volume versus four-piston calipers below, providing the ideal solution for heavier, more powerful cars and trucks with rotors up to 380mm. Off-road versions are available.



Provides best-in-class balance of performance, weight and pad volume for most production-based sports cars. STR-40 is the benchmark for street driving, performance driving events and sprint racing with rotors up to 355mm. Off-road versions are available.

  



A lighter weight option for the front axles of compact production vehicles and rear axles with rotors up to 380mm diameter.

  




Mid-size caliper offering unmatched stiffness in its class, as well as the greatest available range of rotor widths and piston sizes with differential bores. For circle-track, off-road, sport compact and rally applications with rotors 332mm and smaller.

  



Compact caliper offering unmatched stiffness in its class, as well as the greatest available range of rotor widths and piston sizes with differential bores. For circle-track, off-road, sport compact and rally applications with rotors 313mm and smaller.

  




An ideal solution for the rear axle of many production-based sports cars and sedans with rotors up to 355mm. 

  




A weight-optimized solution for the rear axle of touring and compact cars with rotors up to 313mm. An excellent solution for off-road as well.




The STR-23 is the smallest and lightest high performance caliper in the StopTech lineup. Although the design focus is placed on weight, StopTech’s engineers were also able to produce a stiffer caliper than the competition. This versatile caliper can be used with dirt or pavement Sprint and Midget cars, as well as specialty markets like ATV and snowmobiles.