Speedometer & gearing correction
How far off your speedometer and odometer read after a tire size change, and the axle ratio that fixes it.
As it reads on the sidewall — 265/70R17 or 31x10.50R15.
What is on the truck now.
Defaults to 60.
Optional — e.g. 3.91. Enables the re-gear suggestion.
Enter both tire sizes as they read on the sidewall — 285/70R17 or 33x12.50R17.
What it needs
- Stock tire size, required — As it reads on the sidewall — 265/70R17 or 31x10.50R15.
- Current tire size, required — What is on the truck now.
- Indicated speed (mph), optional — Defaults to 60.
- Stock axle ratio, optional — Optional — e.g. 3.91. Enables the re-gear suggestion.
In AdventureOS
Part of OffRoad. Inside the module it fills itself in from what you have already logged.