KNOWLEDGE BASE · Setup & adjustment · Brake spring combinations
Recommended combos by car class
All ~66 documented combinations pair any two different die springs with thick/thin preload and a 7/10/13 mm washer. Travel is not fixed per colour — any…
- PurrPRO FORMULA PEDALS
- Updated 6 Sep 2026
| Car class | Springs | Preload | Washer |
|---|---|---|---|
| 2000s F1 | Yellow + Red | Thick | 13 mm |
| Hybrid F1 | Red + Blue | Thick | 10 mm |
| Prototype | Yellow + Blue | Thick | 10 mm |
| GT3 | Red + Blue | Thick | 10 mm |
| Modern road car | Blue + Green | Thin | 10 mm |
| Vintage road car | Green + Purple | Thin | 7 mm |
| Dan Suzuki spec | Blue + Green | Thick | 10 mm |
All ~66 documented combinations pair any two different die springs with thick/thin preload and a 7/10/13 mm washer. Travel is not fixed per colour — any combo can give short or long travel depending on your leg force and 3rd-stage position. Official spring force-vs-travel graphs (throttle DEFAULT and LIGHT) are pinned in #purrpro-formula-pedals on Discord.
Tip from tickets“Thick/thin preload” = the silver compression springs on the brake. If unsure about the big 3rd-stage spring: yellow (factory) suits almost everyone; blue only for very light vintage-style setups.
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