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Road and Gravel Tire Pressure by Rider Weight (psi Charts)

What tire pressure to run on your road or gravel bike based on rider weight, tire width, tubeless or inner tube, and terrain. Charts in psi and bar.

By Sport Bike APPs · Updated · 4 min read

Quick answer: a 70 kg rider on 25 mm tires with inner tubes on smooth pavement should run about 95 psi front and 100 psi rear (6.6 and 6.9 bar). On gravel, a 75 kg rider on 40 mm tires over mixed terrain should run about 38 psi front and 40 rear (2.6 and 2.8 bar).

From there, pressure goes up or down depending on your weight, tire width, whether you run tubeless and the condition of the surface. The charts in this guide are calculated with the same formula ROADPro uses, so they match what the app gives you.

How to read the charts

  • Each cell shows front / rear.
  • The road charts assume 700c rims and smooth pavement; the gravel charts, 700c and mixed terrain. Further down we explain how to adjust them to your setup.
  • The weights are the rider's weight. If you fall between two rows, go with a value in between.

Road tire pressure with inner tubes

In psi:

Weight 23 mm 25 mm 28 mm 30 mm 32 mm
50 kg 82 / 86 74 / 78 67 / 70 61 / 64 56 / 59
60 kg 93 / 98 85 / 89 76 / 80 69 / 73 63 / 67
70 kg 105 / 110 95 / 100 86 / 90 78 / 82 71 / 75
80 kg 110 / 115 105 / 110 95 / 100 86 / 91 79 / 83
90 kg 110 / 115 105 / 110 95 / 100 90 / 95 85 / 90
100 kg 110 / 115 105 / 110 95 / 100 90 / 95 85 / 90
110 kg 110 / 115 105 / 110 95 / 100 90 / 95 85 / 90

In bar:

Weight 23 mm 25 mm 28 mm 30 mm 32 mm
50 kg 5.6 / 5.9 5.1 / 5.4 4.6 / 4.8 4.2 / 4.4 3.8 / 4.0
60 kg 6.4 / 6.7 5.8 / 6.1 5.2 / 5.5 4.8 / 5.0 4.4 / 4.6
70 kg 7.2 / 7.6 6.6 / 6.9 5.9 / 6.2 5.4 / 5.7 4.9 / 5.2
80 kg 7.6 / 7.9 7.2 / 7.6 6.5 / 6.9 6.0 / 6.3 5.5 / 5.7
90 kg 7.6 / 7.9 7.2 / 7.6 6.6 / 6.9 6.2 / 6.6 5.9 / 6.2
100 kg 7.6 / 7.9 7.2 / 7.6 6.6 / 6.9 6.2 / 6.6 5.9 / 6.2
110 kg 7.6 / 7.9 7.2 / 7.6 6.6 / 6.9 6.2 / 6.6 5.9 / 6.2

You'll notice that with 23 to 28 mm tires, the values stop rising above about 80 kg. That's not a mistake: it's the safety maximum for that width (explained below). If you're heavier, a wider tire will let you run the right pressure without going over that limit.

Tubeless road tire pressure

In psi:

Weight 23 mm 25 mm 28 mm 30 mm 32 mm
50 kg 73 / 77 67 / 70 60 / 63 55 / 58 50 / 53
60 kg 84 / 88 76 / 80 68 / 72 62 / 66 57 / 60
70 kg 94 / 99 86 / 90 77 / 81 70 / 74 64 / 68
80 kg 104 / 110 95 / 100 85 / 90 78 / 82 71 / 75
90 kg 110 / 115 104 / 110 94 / 99 86 / 90 78 / 82
100 kg 110 / 115 105 / 110 95 / 100 90 / 95 85 / 90
110 kg 110 / 115 105 / 110 95 / 100 90 / 95 85 / 90

In bar:

Weight 23 mm 25 mm 28 mm 30 mm 32 mm
50 kg 5.1 / 5.3 4.6 / 4.8 4.1 / 4.4 3.8 / 4.0 3.4 / 3.6
60 kg 5.8 / 6.1 5.2 / 5.5 4.7 / 5.0 4.3 / 4.5 3.9 / 4.1
70 kg 6.5 / 6.8 5.9 / 6.2 5.3 / 5.6 4.8 / 5.1 4.4 / 4.7
80 kg 7.2 / 7.6 6.5 / 6.9 5.9 / 6.2 5.4 / 5.6 4.9 / 5.2
90 kg 7.6 / 7.9 7.2 / 7.6 6.5 / 6.8 5.9 / 6.2 5.4 / 5.7
100 kg 7.6 / 7.9 7.2 / 7.6 6.6 / 6.9 6.2 / 6.6 5.9 / 6.2
110 kg 7.6 / 7.9 7.2 / 7.6 6.6 / 6.9 6.2 / 6.6 5.9 / 6.2

Gravel tire pressure with inner tubes

In psi:

Weight 35 mm 38 mm 40 mm 42 mm 45 mm
50 kg 30 / 32 28 / 29 26 / 28 24 / 26 23 / 24
60 kg 36 / 37 33 / 35 31 / 33 29 / 30 27 / 29
70 kg 41 / 43 38 / 40 36 / 38 33 / 35 31 / 33
80 kg 46 / 49 43 / 45 40 / 43 38 / 40 36 / 37
90 kg 52 / 55 48 / 51 45 / 48 42 / 44 40 / 42
100 kg 57 / 58 53 / 56 50 / 53 46 / 49 44 / 46
110 kg 57 / 58 57 / 58 55 / 58 51 / 53 48 / 51

In bar:

Weight 35 mm 38 mm 40 mm 42 mm 45 mm
50 kg 2.1 / 2.2 1.9 / 2.0 1.8 / 1.9 1.7 / 1.8 1.6 / 1.7
60 kg 2.4 / 2.6 2.3 / 2.4 2.1 / 2.2 2.0 / 2.1 1.9 / 2.0
70 kg 2.8 / 3.0 2.6 / 2.8 2.5 / 2.6 2.3 / 2.4 2.2 / 2.3
80 kg 3.2 / 3.4 3.0 / 3.1 2.8 / 2.9 2.6 / 2.7 2.4 / 2.6
90 kg 3.6 / 3.8 3.3 / 3.5 3.1 / 3.3 2.9 / 3.0 2.7 / 2.9
100 kg 4.0 / 4.0 3.7 / 3.9 3.4 / 3.6 3.2 / 3.4 3.0 / 3.2
110 kg 3.9 / 4.0 3.9 / 4.0 3.8 / 4.0 3.5 / 3.7 3.3 / 3.5

Tubeless gravel tire pressure

In psi:

Weight 35 mm 38 mm 40 mm 42 mm 45 mm
50 kg 28 / 29 26 / 27 24 / 25 22 / 24 21 / 22
60 kg 33 / 34 30 / 32 28 / 30 26 / 28 25 / 26
70 kg 38 / 40 35 / 37 33 / 35 30 / 32 29 / 30
80 kg 43 / 45 40 / 42 37 / 39 35 / 36 33 / 34
90 kg 48 / 50 44 / 47 42 / 44 39 / 41 37 / 38
100 kg 53 / 56 49 / 52 46 / 48 43 / 45 40 / 43
110 kg 58 / 58 54 / 57 50 / 53 47 / 49 44 / 47

In bar:

Weight 35 mm 38 mm 40 mm 42 mm 45 mm
50 kg 1.9 / 2.0 1.8 / 1.9 1.7 / 1.7 1.5 / 1.6 1.5 / 1.5
60 kg 2.3 / 2.4 2.1 / 2.2 2.0 / 2.1 1.8 / 1.9 1.7 / 1.8
70 kg 2.6 / 2.7 2.4 / 2.5 2.3 / 2.4 2.1 / 2.2 2.0 / 2.1
80 kg 2.9 / 3.1 2.7 / 2.9 2.6 / 2.7 2.4 / 2.5 2.3 / 2.4
90 kg 3.3 / 3.5 3.1 / 3.2 2.9 / 3.0 2.7 / 2.8 2.5 / 2.7
100 kg 3.6 / 3.8 3.4 / 3.6 3.2 / 3.3 2.9 / 3.1 2.8 / 2.9
110 kg 4.0 / 4.0 3.7 / 3.9 3.5 / 3.6 3.2 / 3.4 3.0 / 3.2

What raises or lowers tire pressure

Your weight. This is the main factor. On the road, each kilo above or below 70 kg adds or subtracts 1.1 psi from the starting pressure; on gravel, 0.5 psi per kilo relative to 75 kg.

Tire width. The wider the tire, the less pressure it needs to carry the same weight. On the road, using 25 mm as the baseline:

Width Pressure vs. 25 mm
23 mm +10%
25 mm baseline
28 mm −10%
30 mm −18%
32 mm −25%

On gravel the baseline is 40 mm: a 35 mm tire runs 15% more and a 45 mm tire 12% less.

Tubeless vs. inner tube. With tubeless you can lower the pressure because there's no tube to pinch against the rim: 10% less on the road and 8% less on gravel.

Terrain.

Terrain Road Gravel
Smooth / good pavement baseline +5%
Mixed or light gravel −7% baseline
Rough pavement or uneven terrain −15% −10%

Lower pressure on broken surfaces means the tire absorbs vibration better, grips more and, counterintuitive as it may seem, usually rolls faster than an overinflated tire that bounces around.

Rim diameter. With 650b, road pressure goes up 5% compared to 700c; on gravel it goes down 3%.

Front and rear. The front runs 5% below the rear, because it carries less weight.

Safety limits

Pressure should never go outside a safe range, no matter how heavy the rider is or how much grip you're after. These are the limits ROADPro applies:

Road Minimum (front / rear) Maximum (front / rear)
Inner tube 40 / 45 psi depends on width
Tubeless 30 / 35 psi depends on width
Width (road) Maximum front / rear
23 mm 110 / 115 psi
25 mm 105 / 110 psi
28 mm 95 / 100 psi
30 mm 90 / 95 psi
32 mm 85 / 90 psi

On gravel, the minimum is 19 / 20 psi with inner tubes and 14 / 15 psi with tubeless, and the maximum is 58 psi (about 4 bar) for both tires.

Always respect the maximum pressure printed on your tire and rim, even if the charts give a higher value. The lower limit wins.

Tips for dialing in your tire pressure

  • Check it before every ride. Tires lose air over a few days, and pressure also changes with the outside temperature.
  • Use a reliable gauge. If your pump's gauge isn't accurate, a few psi of difference is already noticeable on the bike.
  • Adjust and test. The charts are a starting point. If the bike feels bouncy on the pavement, drop a little; if the tire folds in corners or you feel the rim bottoming out, add some.

Frequently asked questions

Why does the front tire run less pressure than the rear?

Because it carries less weight. With the rider seated, most of the load sits over the rear wheel, so the front can run a bit lower for more grip and comfort. In ROADPro the front runs 5% below the rear.

How much lower should tubeless pressure be?

On the road, 10% lower than with inner tubes; on gravel, 8% lower. Without a tube there's no risk of pinching it against the rim, so you can drop the pressure and gain grip and comfort.

How do I convert psi to bar?

Multiply psi by 0.0689 (1 bar is about 14.5 psi). For example, 100 psi is about 6.9 bar.

What pressure should I run with 25 mm tires if I weigh 80 kg?

With inner tubes, on smooth pavement and 700c rims, 105 psi front and 110 psi rear (7.2 and 7.6 bar). With tubeless, 95 front and 100 rear.

Should I check my tire pressure before every ride?

Yes. Tires lose air over a few days, especially tubeless setups and narrow tires, and pressure also changes with the outside temperature.