News
Reading time: 4 min | Category: Ownership
Tyre pressure is the single most commonly neglected maintenance item on fat tyre electric bikes. It is also the easiest to get right and the one that makes the most immediate difference to how the bike rides, how far it goes on a charge, and how safe it is in varying conditions.
Why Fat Tyre Pressure Is Different
Fat tyres run at much lower pressures than standard bike tyres. A road bike might run at 80 to 120 PSI. A fat tyre electric bike runs at 8 to 25 PSI depending on the tyre, the rider weight and the terrain. First-time fat tyre riders often assume the tyres are under-inflated. They are not — the low pressure is the point.
The large volume of air at low pressure is what creates the cushioning effect. Run too hard and you lose this benefit. Run too soft and rolling resistance increases, range drops and the risk of pinch flats rises.
What Pressure to Run
The correct pressure depends on body weight, terrain and the specific tyre. Your bike manual gives the recommended range. Use that as your starting point.
Sealed path commuting: run toward the higher end of the recommended range. Less rolling resistance, better battery efficiency.
Mixed terrain, gravel and beach access: drop to the middle or lower end. More contact patch, better grip on loose and variable surfaces, more cushioning on rough paths.
Very rough off-road terrain: lower pressure still, within the tyre's minimum safe range. Maximum traction and cushioning.
Rider Weight and Pressure
Heavier riders need slightly more pressure for the same terrain. A 65kg rider and a 95kg rider on the same bike will get the best results at different pressures. If you are 90kg or more, start toward the middle of the recommended range rather than the bottom.
How Often to Check
Monthly is the minimum. Fat tyres lose pressure gradually — a tyre correct a month ago may be noticeably soft today. Also check after any impact that felt harder than usual.
What You Need
A floor pump with a pressure gauge that reads in PSI and a valve fitting compatible with your bike. Check whether your bike uses Schrader or Presta valves before buying a pump. We stock both types in store.
Signs Your Pressure Is Wrong
Too low: the bike feels sluggish and heavy. Range shorter than usual. Tyre visibly squashes flat when you sit on it. Tyre bottoms out on rough ground.
Too high: ride is harsh and jarring. Bike skips over rough surfaces rather than rolling through them. Traction on gravel or wet surfaces feels reduced.
If either of these sounds familiar, check your pressure first — it is almost certainly the issue.
Workshop services → | Full maintenance guide → | Ask our team →
Last updated: July 2026 | 435A Bridge Rd, Richmond VIC 3121 | 03 9421 2293
Frequently Asked Questions
Fat tyres run at much lower pressures than standard bike tyres — typically 8 to 25 PSI depending on the tyre, rider weight and terrain. For sealed path commuting, run toward the higher end of the recommended range for less rolling resistance and better battery efficiency. For mixed terrain and gravel, drop to the middle or lower end for more grip and cushioning. Your bike manual gives the recommended range for your specific tyre.
Monthly is the minimum. Fat tyres lose pressure gradually through the tyre and tube material. A tyre that was correct a month ago may be noticeably soft today. Also check after any impact that felt harder than usual — hitting a pothole or kerb at speed can unseat the tyre bead at very low pressures. Five minutes with a pump and pressure gauge once a month is all it takes.
The bike feels sluggish and heavy. Range is noticeably shorter than usual. The tyre visibly squashes flat on the bottom when you sit on it. On rough ground the tyre bottoms out — you feel a sharp impact through the rim. Under-inflated tyres also increase the risk of pinch flats. If your ride feels harder than usual, check tyre pressure first — it is almost certainly the issue.
The ride becomes harsh and jarring. The bike skips and bounces over rough surfaces rather than rolling through them. Traction on gravel or wet surfaces feels reduced. The cushioning benefit that makes fat tyres valuable on varied surfaces disappears. Run too high and you lose the fundamental advantage of a fat tyre electric bike over a standard narrower-tyred bike.
Yes. Heavier riders need slightly more pressure for the same terrain. A 65kg rider and a 95kg rider on the same bike will get the best results at different pressures. If you are 90kg or more, start toward the middle of the recommended range rather than the bottom, and adjust from there based on feel. We will advise on the right starting pressure for your weight when you pick up the bike.
A floor pump with a pressure gauge that reads in PSI and a valve fitting compatible with your bike. Most fat tyre electric bikes use either Schrader valves (same as car tyres — wide, with a pin in the centre) or Presta valves (narrower, threaded tip). Check which valve type your bike uses before buying a pump. We stock pumps compatible with both types in store at 435A Bridge Rd, Richmond VIC 3121.
