TARMAGO

Free tools

Tools for track riders

Calculators and utilities to prepare your track days. Most need no sign-up — a few require a free account to save your data.

Motorcycle gearing calculator

Find the right front / rear sprocket combo, chain length and theoretical speeds for your bike.

Open the tool

Motocross & enduro gearing

Front and rear sprockets, chain length and speed in every gear for motocross and enduro bikes.

Open the tool

Track tyre pressures & compounds

Manufacturer references by model, size and axle. Cold/hot pressures in bar or psi, plus compound guides.

View the references

Circuit notebook

Drop your markers straight onto the track map, corner by corner: braking point, gear, visual reference. And keep your setup (gearing, tyre pressures, suspension) for every circuit.

Open my notebook

Telemetry: your laps on the map

Upload the file from your GPS lap timer or data logger: Tarmago recognises the circuit, splits your laps and sectors, and draws your line on the track map.

See compatible devices

Track flags

Learn the FFM signals and check your knowledge with a four-choice quiz.

Learn and take the quiz

CASM practice quiz

Prepare for the French CASM: chapter practice, multiple answers and a 40-question, 40-minute mock exam. French content.

Practise the CASM (French)

Two-stroke fuel mix

Measure oil, calculate petrol quantities and correct a known mixture. Sourced manufacturer references.

Calculate my mix

SAG calculator

Calculate front and rear sag, with and without the rider, and compare it with suspension and motorcycle manufacturers’ ranges.

Measure my sag

Motorcycle noise test

Compare your reading with circuit noise limits, keeping static and drive-by measurements separate.

Compare my reading

Tire life calculator

Estimate when to replace your track tires based on riding style, compound and circuit.

Coming soon

Maintenance log PDF

Export your component tracking as a printable PDF for trackdays.

Coming soon

Save your configurations

With a free account, save motorcycle sprockets, cold tyre pressures and SAG measurements in suspension notes for each circuit. Optionally link a bike from your garage.

Create my free account