Tire pressure

Starting pressure from loaded weight, measured tire width, surface, and setup. Based on published SILCA comparison points — not their proprietary model.

Your setup

Total weight

You, the bike, bottles, and gear.

Measured tire width

Measure the inflated tire with calipers rather than reading the sidewall.

Where you ride

Surface

Wheel size

Tire type

Average speed

Weight split, front / rear

Hookless or TSS rimsKeeps the result under the usual caps: 72.5 psi for tires up to 29 mm, 65 psi for wider ones.

Where to start

Front: 74psi; 5.1 bar
Rear: 76psi; 5.24 bar

Based on 85 kg all in.

Use measured tire width (calipers), not the sidewall label — modern rims often run 1–3 mm wider.
Treat these as a starting point. Many riders prefer 3–7 psi lower than “fastest” estimates on rough roads.

Tools

Find your size, set your tire pressure, and look up bolt torque.