100/90-12 Motorcycle Tires
5 models in 100/90-12, from 4 brands we stock. Order online for delivery, or have them fitted at the shop in Orange.
What 100/90-12 means
100 is the section width in millimetres, measured across the tread. 90 is the aspect ratio: the sidewall is 90% of the section width, which works out to roughly 90 mm here. 12 is the rim diameter in inches — the wheel this tire mounts on.
On most motorcycles a 100/90-12 is a front tire.
The sizes listed for each model are the sizes it is made in. Confirm against the size on your own bike before ordering — wheel swaps change fitment.Every 100/90-12 tire we stock

A purpose-built race tire for mini bikes, pit bikes, and racing scooters — when lap times matter more than commute miles.
A purpose-built race tire for mini bikes, pit bikes, and racing scooters — when lap times matter more than commute miles.
The TT93 GP Pro is the go-to choice for mini-bike and scooter racers who need maximum dry-track grip and DOT certification — wet roads and long commutes are not its calling.

A race-inspired 12-inch sport tire built for scooter and small-displacement riders who want real grip on the street and at the track.
A race-inspired 12-inch sport tire built for scooter and small-displacement riders who want real grip on the street and at the track.
Best suited for sport scooter riders and small-bike enthusiasts who want genuine performance grip with enough all-weather composure for street use

Race-compound grip and efficient wet-weather drainage engineered for 12-inch scooters and lightweight street machines — the urban performance tire that punches above its class.
Race-compound grip and efficient wet-weather drainage engineered for 12-inch scooters and lightweight street machines — the urban performance tire that punches above its class.
The KD1 is the right call for commuters and weekend warriors on small-displacement machines who want genuine grip and wet confidence without overpaying.


Brands that make a 100/90-12
Other common sizes
Running a different size front and rear? These are the other sizes we stock, closest wheel diameter first.
Before you buy
- When to replace your motorcycle tires
- How long do motorcycle tires last?
- Reading the DOT date code on a tire
- Setting motorcycle tire pressure
- Bias-ply vs radial motorcycle tires
- Why tire balancing matters
Fitting a 100/90-12 at MTC
We mount and balance every tire we sell, and tires you bring in. Walk-ins welcome at the Orange shop, or book a slot so the bay is ready when you arrive.