Mazda #55 787B now makes up 34% of the top 50 in Road R.
Captured: 2026-07-21 · Sample: 700
Specs
830 kg · 45% front · RWD · PI R 988
690 hp · 5 speed
Calculated tune
Drift
Springs 173.2 / 273.3 lb/in · Ride height 11 / 11.5 cm
Rebound 10.4 / 11.8 · Bump 6.4 / 7.3
Circuit
Springs 241.9 / 318.8 lb/in · Ride height 9.5 / 9.8 cm
Rebound 11.6 / 12 · Bump 7.2 / 7.5
Rally
Springs 60.5 / 85.7 lb/in · Ride height 16 / 16.5 cm
Rebound 8.4 / 9 · Bump 5.2 / 5.6
Drag
Springs 115.9 / 98.4 lb/in · Ride height 10 / 11 cm
Rebound 9 / 7.5 · Bump 5.6 / 4.7
For the full setup (antiroll bars, tire pressure, alignment, differential) see the calculator — it marks which values are calculated and which are starting points.
If you run this car, share your build: which parts, what PI? Upgrade data is not public anywhere — it only exists if we collect it.