Tyre Pressures and Setup
The modern view
Tyre technology and understanding have evolved dramatically. Cyclists have moved away from narrow, rock-hard tyres towards wider tyres run at lower pressures, improving comfort, grip, and rolling efficiency — especially on real-world roads.
Recent tests show that lower pressures reduce vibration losses (“suspension losses”) and can actually increase speed on imperfect surfaces.
Calculating your pressure
Tyre pressure depends on:
· Tyre width
· Rider + bike weight
· Road surface
· Tubeless vs. tube setup
· Temperature and season
Use these calculators to find an appropriate range:
· Simple Tyre Pressure Calculator – Rene Herse Cycles https://www.renehersecycles.com/tire-pressure-calculator/
· Comprehensive Tyre Pressure Calculator – SILCA https://silca.cc/en-gb/pages/pro-tire-pressure-calculator
(Tip: The maximum pressure printed on a tyre or wheel rim is a safety limit, not the target pressure. Always use the lower of the two stated limits.)
Practical guidance
· Rear tyre: typically 5–10 psi higher than the front (since it carries more weight).
· Tubeless setups can run 10–15% lower pressure safely.
· Adjust downward slightly for rough roads or wet conditions for better grip.
· Re-check pressures weekly — floor pumps often lose calibration over time.