For the Xtreme 125R tyre pressure, rely on the cold values in Hero's owner's manual for the 90/90-17 and 120/80-17 tubeless pair. Online figures we checked contradicted one another, so this page leaves the psi boxes empty; the manual or a Hero workshop has the answer.
Read on for tracking that number down, filling it properly and the symptoms of getting it wrong on this sporty 125.
Xtreme 125R fitment card
- Tyre size
- Front 90/90-17, rear 120/80-17, tubeless
- Wheels
- 17 inch alloy front and rear on every variant
- Tyre pressure (cold)
- Not quoted; read the owner's manual or the label on the bike
- Battery
- 12 volt, 4 Ah maintenance free
Getting the Xtreme 125R tyre pressure figure
- Flip to the specification pages of the owner's manual; Hero gives front and back values there, typically with a firmer two up back setting.
- Hunt for a printed air label on the bike's frame or rear mudguard area.
- At the next free or paid service, get the Hero technician to note the values in your booklet.
That bold psi rating stamped on the casing is not the number to fill.
Hero Xtreme 125R tyre pressure: your chart
| Load | Front (90/90-17) | Rear (120/80-17) |
|---|---|---|
| Rider only | From owner's manual | From owner's manual |
| Rider with pillion | From owner's manual | From owner's manual |
Fill in the numbers from your manual and keep a photo on your phone. That way you can tell the pump attendant the exact psi every time.
Filling the air the right way
Check in the morning before riding, or after a few shaded hours parked. Give the attendant two numbers, one per wheel, since the rear normally runs firmer. Watch the display yourself. Hot afternoon readings run high, so leave them alone. Put the valve caps back; they guard the cores from grit and rain. If the pump shows bar, convert with our unit converter.
What low pressure does to the Xtreme
The wide 120 rear hides low pressure well, so riders miss it. Signs: steering feels heavy at walking speed, the Xtreme drifts outward mid bend, fuel economy slips, and the tyre shoulders wear faster than the centre. A soft tubeless tyre also heats more on long highway runs. Repeated sagging points to a leak worth tracing.
What too much air does
An over filled tyre feels skittish. On the Xtreme you notice the front chattering over rough patches and the rear skipping under hard braking, especially on wet roads where grip already falls. Centre tread wears out first. Some riders believe hard tyres improve mileage a lot; the gain is small and the loss of grip is real.
Pillion rides, rain and highway trips
Passenger on board? Switch the rear to the manual's two up value. In the monsoon, stick with the manual figures; lower air does not add wet grip and can make the tyre float on standing water. Gauge both cold at home ahead of any expressway run, and make Sunday morning your weekly check. See using a tyre gauge for the method, and bike tyre pressure for general guidance.
Questions owners ask
Hero Xtreme 125R tyre pressure: which number?
Use the cold front and rear figures in your owner's manual or from a Hero service centre. Online figures disagree, so no single number appears here.
Carrying a friend on the Xtreme 125R: change anything?
Bike makers normally specify firmer air at the back for a passenger. Your Xtreme 125R manual gives that exact value.
Should I fill nitrogen in Xtreme 125R tyres?
Optional. Ordinary compressed air at the manual figure performs just as well when you gauge it weekly.
Is the psi on the tyre wall my target?
No, that is the casing limit. Fill to Hero's figure.
Why does my Xtreme 125R tyre keep losing air?
Hunt for three things: embedded wire or glass, a weeping valve, or a pothole ding on the rim lip. Let a puncture shop trace the leak instead of topping up every other day.
How often should I check?
Once a week and before long rides, with the tyres cold.