What pressure should I run in my road bike tires?

It depends mostly on rider-plus-bike weight and tire width, then on rim width, surface, and whether you run tubeless. As a rough starting point for a 28 mm tire on modern roads, many riders of 70-80 kg land around 55-65 PSI, often lower with tubeless. Use a calculator that accounts for your weight and width rather than the number on the sidewall, then fine-tune by feel.

Is the pressure printed on the tire the pressure I should use?

No. The number molded into the sidewall is a maximum safe pressure (and sometimes a minimum), not a recommendation. The right pressure for you is usually well below the maximum and depends on your weight, tire width, rim width, and the surface you ride.

Does higher tire pressure make you faster?

Not on real roads. Above a certain point — the 'breakpoint' — extra pressure stops lowering rolling resistance and starts raising it, because the tire vibrates over road texture instead of conforming to it. That vibration also costs comfort and grip. The fastest pressure on rough pavement is lower than most riders assume.

How does temperature affect tire pressure?

Pressure rises and falls with temperature at roughly 0.27 PSI per degree Celsius (about 0.15 PSI per degree Fahrenheit). A tire set indoors on a warm morning can read several PSI lower on a cold descent, so it is worth checking — or compensating — when the temperature swings.

Tire pressure

Road Bike Tire Pressure: How to Find Your Number

The pressure molded into your sidewall is a ceiling, not a recommendation. Your real number is set by how much you weigh, how wide your tire and rim are, what you're rolling over, and how cold it is. Here's how those pieces fit together.

Updated June 30, 2026

Forget the number on the sidewall

That "max 100 PSI" stamped on the casing is a safety limit, not advice. For decades riders pumped to it anyway, on the logic that a harder tire must roll faster. On a glass-smooth drum, that's almost true. On a real road, it's wrong — and it costs you speed, comfort, and grip at the same time.

The right pressure is the one that lets the tire conform to the road's texture without wasting energy or risking the rim. For most road riders on modern wide tires, that's a good deal lower than tradition suggests.

The four things that actually set your pressure

1. Rider plus bike weight

This is the biggest lever. The tire has to support the load pressing down on it, so a heavier rider needs more pressure to keep the same amount of tire squash — what fitters call tire drop, the percentage the loaded tire compresses versus unloaded. A common target is around 15% drop. Weight is also split front-to-rear (roughly 40/60 on a road bike), which is why your rear tire should usually run a few PSI higher than the front.

2. Tire width (and what it's mounted on)

A wider tire holds more air at a given pressure, so it needs less pressure to carry the same load. Moving from 25 mm to 28 mm or 32 mm can drop your ideal pressure by 10 PSI or more. The internal width of your rim matters too: a wider rim spreads the tire, increasing its real-world volume and lowering the pressure it wants.

3. Surface

Smooth tarmac tolerates more pressure; chip-seal, broken pavement, and gravel reward less. On rough surfaces a softer tire absorbs impacts that a hard tire transmits straight into vibration — and vibration is lost energy. This is the heart of the "breakpoint": push past the pressure where the tire stops conforming and rolling resistance climbs instead of falling.

4. Temperature

Air pressure tracks temperature at about 0.27 PSI per °C (roughly 0.15 PSI per °F). Set your tires in a warm garage and start a cold descent and you may be several PSI lower than you think — usually harmless, occasionally enough to matter on a tubeless setup near its floor.

Tubeless changes the floor

Without an inner tube there's no tube to pinch, so you can safely run lower — often around 6.5 PSI lower on the road for the same feel — gaining grip and comfort. The new limit becomes the tire squirming in hard corners or the rim striking through on big hits, not a pinch flat. We cover this in detail in our tubeless pressure guide.

A sane starting point

Treat these as rough starting numbers for a smooth-to-average road, then adjust. They assume a rider of around 70–80 kg including bike and kit:

Tire width	Front (PSI)	Rear (PSI)
25 mm	68–75	72–80
28 mm	58–66	62–70
32 mm	48–56	52–60

Lighter riders go lower, heavier riders higher, tubeless lower still, rough roads lower again. These are anchors, not answers — the point is to start far from the sidewall maximum.

How to dial it in by feel

Start from a weight-and-width-based number, not the sidewall max.
Ride a familiar loop and notice the feel: does it skip and buzz over rough patches (too high), or feel vague and squirmy in corners and squashy on hard hits (too low)?
Adjust 2–3 PSI at a time and re-ride. The good range is wider than people fear; you're hunting for "planted and quiet," not a single magic number.
Keep front a few PSI below rear, and re-check when the weather or your tires change.

Let the app do the math

Velo Garage builds your recommendation from pressure tables validated against pro data, then adjusts for your weight, tire and rim width, surface, tubeless setup, and the live temperature where you are — and learns your personal targets as you rate each run. One tap, per bike.