Piston Diameter Specifications

For StopTech Calipers only

Every StopTech kit is custom engineered for a specific vehicle. Using a kit designed for another vehicle will likely reduce performance.





 
Piston Size
(mm)
Piston Outer Dia
(Actual, mm)
Wall Thickness
(mm)
Piston Inner Dia
(mm)
Piston Inner Dia
(in)
26
25.95
 7.125 
 11.70
0.461
28
27.95
7.250
13.45
0.530
30
29.95
7.375
15.20
0.598
32
31.95
7.500
16.95
0.667
34
33.95
7.625
18.70
0.736
36
35.95
7.750
20.45
0.805
38
37.95
7.875
22.20
0.874
40
39.95
8.000
23.95
0.943
42
41.95
8.125
25.70
1.012
44
43.95
8.250
27.45
1.081
46
45.95
8.325
29.30
1.154
48
47.95
8.500
30.95
1.219

StopTech Big Brake Kit Caliper Components and Parts

  StopTech Big Brake Kit Pads and Caliper Components
StopTech calipers have gone through extensive design and testing and are engineered and tested for each application. Components have been put through corrosion, heat, and brake dyno testing. They are not designed to be interchangeable across vehicle platforms. Use of incorrect repair or replacement components on StopTech calipers may result in damage and/or failure

StopTech Trophy Sport Big Brake Kit Caliper Components and Pads
  StopTech Trophy Sport Big Brake Kit Pads and Caliper Components
StopTech Trophy Sport calipers have gone through extensive design and testing. Components have been put through corrosion, heat, and brake dyno testing. Caliper bodies have weight optimizing design and manufacturing elements in a hard anodized finish. Use of incorrect components on StopTech caliper may result in damage and/or failure