Updated on 9 November 2026. The recommended products are available at the time of this update.
Bike tyres should be inflated to a pressure suited to the combined weight of rider, bike and luggage, the tyre width, the surface and whether you use inner tubes or tubeless. As an initial guide, with a total weight of around 85 kg, you could consider 4-5.5 bar for 28 mm road tyres, 2-3 bar for 40 mm gravel tyres and 1.3-1.8 bar for tubeless MTB tyres around 60 mm wide. These are indicative ranges: use them only if they comply with the manufacturers' guidance and the tyre and rim limits.
How to choose
There is no single correct pressure for every bike. Start with the tyre and wheel manufacturers' guidance, or their calculator where available, then consider these criteria.
- Total weight: add together your weight including clothing, the bike's weight and the weight of bags, water and accessories. With the same tyre, a heavier load generally requires more pressure.
- Tyre width: a wider tyre can run at lower pressures. The actual width when fitted also matters, as it can vary depending on the rim.
- Surface: on smooth tarmac, you can use a higher pressure than on a rough route. Off-road, reducing pressure can improve grip and comfort, provided the tyre remains adequately supported.
- Inner tube: pressure that is too low increases the risk of pinching the inner tube between the tyre and rim when you hit an obstacle.
- Tubeless: often allows lower pressures than an inner tube, but going too low can cause rim strikes, instability or air loss at the bead.
- Load distribution: the rear wheel often carries more weight and requires a slightly higher pressure. Bags and your riding position can change this balance.
On an e-bike, consider the actual weight of the bike and its load: the presence of a motor alone does not determine the correct pressure in bar. To explore two choices that affect pressure settings, read 25, 28, 30 or 32 mm tyres: which should you choose? and Tubeless or inner tubes: what is the difference and which should you choose?.
Before inflating: check the tyre, rim and hookless requirements
Read the information on the tyre sidewall and consult the rim manufacturer's guidance. The maximum printed on the tyre is a limit, not the recommended pressure for every ride.
- Observe the lower limit: if the tyre and rim specify different maximum pressures, the lower one applies. Also observe any specified minimum pressures.
- Check the combination: the tyre width, internal rim width and type of setup must be compatible.
- With hookless rims: use only tyres and sizes approved for that rim. The tubeless label alone does not guarantee compatibility.
- Check the specific hookless limit: do not assume it is always 5 bar. It may be lower and depend on the tyre size.
- An inner tube does not change the limits: fitting one does not make a tyre that is not approved for hookless compatible, or allow you to increase the maximum pressure.
If you cannot find this information, establish compatibility before inflating. You must also observe the manufacturers' limits when seating tubeless beads.
How to use a pressure gauge
Check the pressure before your ride, with the tyres at ambient temperature and before they warm up through riding or being left in the sun. Squeezing the tyre with your fingers does not give a reliable measurement.
- Identify the valve: on a Presta valve, unscrew the small nut at the tip; on a Schrader valve, remove the cap and connect the compatible head.
- Set the unit: choose bar or psi and use it throughout the adjustment. One bar is approximately 14.5 psi.
- Connect the gauge securely: keep the head aligned with the valve and make sure it forms a seal. A prolonged hiss indicates a leak that affects the measurement.
- Read and adjust: add air with the pump or release a little at a time, then measure again.
- Check both wheels: note the values that work for you and close the Presta valve without forcing it.
Always using the same pressure gauge helps you compare settings. Choose a gauge with a suitable measurement range: a high maximum capacity alone does not guarantee an accurate reading at the low pressures used for MTB.
How to adjust the pressure after a test ride
Test the bike on a familiar stretch and change only one setting at a time. Make small adjustments, for example 0.1 bar for MTB and 0.2 bar on the road, always staying within the permitted limits.
- The bike bounces and transmits a lot of vibration: the pressure may be too high for that surface. Try reducing it slightly.
- The tyre deforms significantly when cornering: the pressure may be too low. Stop and check it.
- You feel rim strikes or lose air with tubeless: stop the test and check the pressure, tyre and wheel before setting off again.
- You add luggage or change tyres: recalculate your starting pressure. Your usual setting may no longer be suitable.
Check your tyres before every ride: air loss varies depending on the tyre, inner tube, valve and how well the tubeless system seals.
Our recommendations, available now
In the pressure gauges collection, you will find portable tools and pump spare parts. Before choosing, check the valve, measurement range and compatibility with your equipment.
Topeak SmartGauge D2 Digital Pressure Gauge for Presta and Schrader Valves
It is suitable for anyone who wants to check bikes with Presta and Schrader valves using a rotating head, without changing parts. The display shows psi, bar or kg/cm², measures up to 17 bar and the tool weighs 65 g, with a CR2032 battery included.
XON Portable Tyre Pressure Gauge for Presta and Schrader Valves Black
It is an option for anyone looking for a portable pressure gauge to use away from home too. It is compatible with Presta and Schrader valves and lets you check bikes with either valve type.
Topeak SmartGauge D2X Digital Pressure Gauge with SmartHead 18 Connector bar/260psi
It is suitable for anyone who wants a digital tool for tyres with Presta and Schrader valves, with a measurement range from approximately 0.35 to 18 bar. It lets you choose between bar, psi and kg/cm², weighs approximately 56 g and includes a CR2032 battery.
Lezyne Replacement Pressure Gauge 2,5 Inch 350 psi
It is a spare part for anyone who needs to replace a broken or illegible pressure gauge on a floor pump with a 2,5-inch gauge. It has a maximum pressure of 350 psi, equivalent to 24.1 bar, and includes glue and an O-ring: check the diameter before purchasing.
Lezyne Digital Pressure ABS Pen Pressure Gauge
It is a replacement flexible hose with an integrated pressure gauge for Lezyne flexible hose pumps in sizes M and L. The ABS flip-thread head is compatible with Presta and Schrader valves; the maximum limit is 8.3 bar and the hose stores inside the pump handle.
The tools' maximum pressures describe their measurement capacity, not how much to inflate your tyres. For shipping information, see the dedicated page.
Find the right setting at our Casapulla shop
At Evolution Bikes, a family-run shop since 1974 and now in its third generation, you can have your tyre pressure checked and adjusted and try the bike after adjustment. We look forward to welcoming you in Casapulla, in the province of Caserta, with a workshop, bike fitting and e-bike servicing: for advice on your tyre and rim combination, contact us.
Frequently asked questions
How many bar do I need to inflate my bike tyres?
It depends on total weight, tyre width, terrain and setup. With a total weight of approximately 85 kg and 28 mm road tyres, 4-5.5 bar can be an initial guide, only if this falls within the tyre and rim guidelines.
Can I use lower pressure with tubeless?
Often yes, because there is no inner tube to pinch. However, pressure that is too low can cause rim strikes, instability and air loss at the bead: always follow the manufacturers' guidelines.
How often should I check my tyre pressure?
Before every ride, using a pressure gauge with the tyres at ambient temperature. How quickly they lose air depends on the type of inner tube or tubeless system and how well they hold air.
What is the maximum pressure for a hookless rim?
You need to check the specified limit for your rim and the approved tyre size, observing the lower limit of the components. Do not treat 5 bar as a universal value or increase the limit by fitting an inner tube.
