Tyre Pressure Assistant

The Tyre Pressure Assistant calculates the optimal tyre pressure for your front and rear wheel — based on your body weight, bike weight, tyre width, and riding style. The result is shown in both bar and psi and can be saved directly as a setup.

Inputs

The assistant takes the following parameters into account:

Rider weight — automatically pulled from your profile, but can be adjusted
Bike weight — loaded from the selected bike
Tyre width — in inches (e.g. 2.4”)
Tubeless — whether you are running tubeless tyres
Riding style — Trail, Enduro, Downhill, XC, or Freeride
Skill level — Beginner, Intermediate, Advanced, or Pro
Terrain — Trail or Gravel

Result

Once all values are entered, the assistant instantly displays the recommended pressure for front and rear tyre — in both bar and psi.

Saving a Setup

You can save the calculated result under a name as a pressure setup. Saved setups appear in the Tyre Pressure section on your bike’s detail page and are always available for quick reference.

Calculation formula

The assistant uses a physics-based formula — not an AI model, but a deterministic calculation:

1. System weight

system_kg = rider_kg + bike_kg

2. Base pressure (rear)

base_rear = 0.013 × system_kg + 0.35

3. Corrections (additive on base_rear)

Parameter	Value	Correction
Tyre width	per inch below 2.4”	`(2.4 − width_inch) × 0.5`
Riding style	XC	+0.20 bar
	Trail	±0
	Enduro	−0.05 bar
	Downhill	−0.15 bar
	Freeride	−0.10 bar
Skill level	Beginner	+0.10 bar
	Intermediate	±0
	Advanced	−0.05 bar
	Pro	−0.10 bar
Tyre type	Tubeless	±0
	Tubed	+0.20 bar

4. Front tyre pressure

front = rear × 0.90

5. Limits (clamp)

Rear: 0.8 – 3.0 bar
Front: 0.7 – 2.8 bar

The calculated value is then output in bar (1 decimal place) and psi (rounded).

Missing something? New feature? More data?

Are there options missing or do you have an idea for an improvement? Feel free to reach out via the contact form — we are actively developing RyTracks and welcome every suggestion.

Documentation