Your Hero Xtreme 160R tyre size question has two answers: 100/80-17 steering the bike and 130/70 R17 driving it, tubeless at both ends and mounted on 17 inch alloys. Hero uses a radial for that rear, hence the R, whereas the bias ply front keeps a plain dash in its code.
Hero kept these sizes when the 4V engine replaced the 2V, and every trim from the base single disc upward shares them. Below we decode the numbers, cover what Xtreme riders can safely change and explain when each tyre is finished.
Xtreme 160R fitment card
- Front tyre
- 100/80-17 tubeless
- Rear tyre
- 130/70 R17 radial tubeless
- Wheels
- 17 inch alloy, front and rear
- Tyre pressure (cold)
- Read the owner's manual; listed figures disagree
- Versions
- Same sizes on the 4V and the earlier 2V
Hero Xtreme 160R tyre size chart
| Version | Front | Rear | Wheel |
|---|---|---|---|
| Xtreme 160R 4V, all variants | 100/80-17 | 130/70 R17 | 17 inch alloy |
| Xtreme 160R 2V (earlier version) | 100/80-17 | 130/70 R17 | 17 inch alloy |
Hero calls both Xtreme tyres tubeless. A few spec sheets drop the R and print 130/70-17 for the rear; since the Xtreme leaves Hero's line on a radial, insist on a radial replacement.
Decoding the Xtreme back tyre, 130/70 R17
Xtreme rear rubber measures 130 mm across its tread. With a 70 profile, Xtreme rear sidewalls stand roughly 91 mm. R means radial: Xtreme rear casing cords cross straight from one bead to its partner, so that sidewall flexes while the tread stays flatter through a bend. 17 matches Xtreme rim diameter in inches. For the front, 100/80-17 means 100 mm of tread width with an 80 profile, so close to 80 mm of sidewall, again on a 17 inch rim.
Sources disagree on Xtreme load and speed symbols, so copy them off your present sidewalls and match or beat them.
Why Xtreme riders burn through rears first
Xtreme rear rubber handles engine drive, the bulk of both riders' weight and rear braking. Ridden briskly between traffic lights, a 160 cc Xtreme can finish its 130/70 R17 in about half the kilometres its front lasts. Watch for a squared off Xtreme rear crown after long straight highway stints, and confirm chain adjuster marks match on both sides whenever a fresh rear goes on, so the wheel tracks true.
Wider rubber on an Xtreme: worth it?
| Size | Sum in mm | Diameter | Change |
|---|---|---|---|
| 130/70 R17 rear (factory) | 432 + 2 x 91 | 614 mm | 0 |
| 140/70-17 rear | 432 + 2 x 98 | 628 mm | +2.3% |
| 100/80-17 front (factory) | 432 + 2 x 80 | 592 mm | 0 |
| 110/70-17 front | 432 + 2 x 77 | 586 mm | -1.0% |
Xtreme owners often ask for a 140/70-17 rear to look beefier. Diameter stays inside 3 percent, yet Hero never fitted a 140 here, and Xtreme rear rim width suits a 130. Stretching a broader tyre over that rim pinches its crown into a rounder shape, slows steering and can bring the sidewall close to chain or swingarm. Plenty of Xtreme riders find a new 130 radial grips better than a fatter bias tyre. Should you still change, let a mechanic measure chain and swingarm gaps with the new tyre mounted.
Xtreme punctures away from home
Being tubeless, an Xtreme tyre struck by a nail tends to lose air gradually instead of collapsing at once. Leave that nail where it is, ride gently to the closest repairer and request an external plug, or ideally an internal mushroom patch. For long Xtreme rides, tuck a compact tubeless repair kit and small inflator beneath the seat. Sidewall cuts on an Xtreme cannot be plugged; that tyre must go.
Our tubeless tyre guide explains repairs in more depth.
Xtreme air pressure and wear limits
Published pressure figures for the Xtreme 160R conflict with each other, so none appears here. Hero states solo and pillion values in the Xtreme owner's manual; set them cold using your own gauge. Retire either Xtreme tyre once the small rubber bar inside a groove sits flush with surrounding tread, or sooner if monsoon riding is routine. Crazing, gashes or a swelling on an Xtreme sidewall warrant an Xtreme tyre professional's inspection before another trip.
Bald tyres plus wet zebra crossings are a risky mix on a light 160 cc bike. Never stretch a smooth Xtreme rear until the next service.
Similar bikes and more help
Set the Xtreme beside its rivals on NS 160 tyre size, which lists 100/80-17 front and 130/70-17 rear, and Hornet 160R tyre size. General fitting advice lives in our bike tyre size section, and inflation tips for many models sit on bike tyre pressure.
Questions owners ask
Which back tyre does a Hero Xtreme 160R use?
Xtreme rears take 130/70 R17, a radial without a tube, mounted on a 17 inch alloy.
Xtreme 160R front tyre size?
Up front Hero fits 100/80-17, tubeless, again over a 17 inch alloy rim.
Did Hero change Xtreme tyres between 2V and 4V?
No. Both Xtreme generations run 100/80-17 ahead and 130/70 R17 behind.
Could my Xtreme take a 140 section rear?
Diameter barely changes, but Hero never fitted one and Xtreme rims suit 130. Get a mechanic to confirm chain clearance, and expect a lazier Xtreme turn in.
Do Xtreme tyres need tubes?
No. Hero fits tubeless tyres at each end of the Xtreme, on alloy rims.
Must a replacement Xtreme rear be radial?
Yes. Hero builds the Xtreme on a radial rear, and switching to bias changes grip and steering feel.