120/100-18 Motorcycle Tires
20 models in 120/100-18, from 8 brands we stock. Order online for delivery, or have them fitted at the shop in Orange.
What 120/100-18 means
120 is the section width in millimetres, measured across the tread. 100 is the aspect ratio: the sidewall is 100% of the section width, which works out to roughly 120 mm here. 18 is the rim diameter in inches — the wheel this tire mounts on.
On most motorcycles a 120/100-18 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 120/100-18 tire we stock

Michelin's lightest trials competition tire — purpose-built for technical obstacle riding where bike placement and grip matter more than mileage.
Michelin's lightest trials competition tire — purpose-built for technical obstacle riding where bike placement and grip matter more than mileage.
Built for competitors and advanced trials riders who demand the lightest, most precise grip tool on the market — street and touring use not its wheelhouse.

Dunlop's purpose-built trials tire — engineered for maximum low-speed traction and technical precision on rock, roots, and extreme terrain.
Dunlop's purpose-built trials tire — engineered for maximum low-speed traction and technical precision on rock, roots, and extreme terrain.
The TL01 is built for one job — trials and extreme technical terrain — and it does that job exceptionally well. Not the tire for your commute.

MX32-derived compound meets trail-ready construction — built for riders who know their terrain runs mid-soft and want a tire that's honest about it.
MX32-derived compound meets trail-ready construction — built for riders who know their terrain runs mid-soft and want a tire that's honest about it.
Best for dirt-focused riders who spend weekends on variable backcountry terrain and want purposeful, condition-matched grip over a do-everything compromise

A competition-bred motocross tire engineered for hard-pack and intermediate terrain — built for riders who race, not just ride.
A competition-bred motocross tire engineered for hard-pack and intermediate terrain — built for riders who race, not just ride.
The MC360 Mid-Hard is purpose-built for motocross racers and hard-terrain trail riders who need durable, consistent grip on compact and intermediate surfaces.

Metzeler's purpose-built intermediate-terrain motocross tire — engineered for loamy soil, soft dirt, and everything in between.
Metzeler's purpose-built intermediate-terrain motocross tire — engineered for loamy soil, soft dirt, and everything in between.
Built for weekend trail riders and amateur MX competitors who need confident, predictable grip on soft-to-intermediate dirt conditions.

Dunlop's purpose-built desert endurance tire — engineered for riders who live off-road and treat pavement as a necessary inconvenience.
Dunlop's purpose-built desert endurance tire — engineered for riders who live off-road and treat pavement as a necessary inconvenience.
Built for desert racers and serious off-road riders who prioritize durability and traction in harsh terrain over any street-going capability.

Competition-grade hard enduro rubber built for extreme grip in wet, technical, and gnarly terrain — not for the street.
Competition-grade hard enduro rubber built for extreme grip in wet, technical, and gnarly terrain — not for the street.
Built for hard enduro racers and serious technical trail riders who demand maximum wet-weather traction and accept the trade-off in wear life.

Pirelli's purpose-built hard-pack off-road tire — built for desert runners, enduro racers, and rocky single-track where durability counts.
Pirelli's purpose-built hard-pack off-road tire — built for desert runners, enduro racers, and rocky single-track where durability counts.
The Scorpion XC Mid Hard is built for desert and hard-pack riders who need a durable, consistent tire that outlasts softer compounds on abrasive terrain.

Pirelli's proven dual-sport workhorse — built for riders who split time between OC pavement and weekend dirt excursions without swapping tires.
Pirelli's proven dual-sport workhorse — built for riders who split time between OC pavement and weekend dirt excursions without swapping tires.
The MT 16 Garacross is the right call for adventure and dual-sport riders who need one tire to handle both the 55 freeway and a weekend fire road.

A purpose-built intermediate terrain motocross tire built for riders who face changing conditions from gate drop to checkered flag.
A purpose-built intermediate terrain motocross tire built for riders who face changing conditions from gate drop to checkered flag.
Best suited for motocross racers and aggressive trail riders who regularly face mixed or transitional soil conditions and need a tire that holds up all day

A workhorse motocross tire built for intermediate to hardpack terrain — consistent, durable, and priced right for club racers and serious practice riders.
A workhorse motocross tire built for intermediate to hardpack terrain — consistent, durable, and priced right for club racers and serious practice riders.
Best suited for club racers and practice-day regulars who need dependable grip on intermediate to hardpack terrain without constantly swapping tires.

A hard-working intermediate motocross tire built for riders who live between the track and the trail — tough, versatile, and priced to ride.
A hard-working intermediate motocross tire built for riders who live between the track and the trail — tough, versatile, and priced to ride.
The K775 Washougal II is the go-to choice for motocross and trail riders who need a durable, do-it-all tire that performs consistently on mixed terrain without breaking the bank.

A desert-hardened, hard-pack specialist built for riders who put in serious miles through arid terrain without breaking the bank.
A desert-hardened, hard-pack specialist built for riders who put in serious miles through arid terrain without breaking the bank.
Best suited for desert and hard-pack riders who prioritize longevity and cut resistance over outright grip in soft or technical terrain.

An 80/20 off-road-biased dual-sport tire built for dirt-first riders who need just enough pavement manners to connect the trails.
An 80/20 off-road-biased dual-sport tire built for dirt-first riders who need just enough pavement manners to connect the trails.
The K760 Trakmaster is the right call for riders who spend most of their miles off-road and just need enough street manners to get home.

A competition-grade Endurocross tire built for riders who demand maximum traction in technical, obstacle-laden terrain — not for the street.
A competition-grade Endurocross tire built for riders who demand maximum traction in technical, obstacle-laden terrain — not for the street.
The Ibex is built for serious Endurocross and extreme enduro competitors who need every ounce of wet grip and terrain compliance and accept a short service life in exchange

A purpose-built motocross tire engineered for soft-to-intermediate terrain — serious traction and durability without the flagship price tag.
A purpose-built motocross tire engineered for soft-to-intermediate terrain — serious traction and durability without the flagship price tag.
Best suited for amateur and practice-level motocross riders who want reliable soft-to-intermediate traction and above-average wear life at a competitive price point.

A purpose-built desert and rocky terrain tire for enduro riders and backcountry explorers who demand durability over everything else.
A purpose-built desert and rocky terrain tire for enduro riders and backcountry explorers who demand durability over everything else.
Built for serious enduro riders and desert explorers who need a tire that survives punishing terrain without sacrificing traction on hardpack and rock

A race-ready motocross tire built for youth riders on 65cc–150cc machines tackling soft-to-intermediate terrain with confidence.
A race-ready motocross tire built for youth riders on 65cc–150cc machines tackling soft-to-intermediate terrain with confidence.
Best suited for youth motocross and trail riders on 65cc–150cc bikes who need honest race performance on soft-to-intermediate terrain without overspending.

A competition-bred, DOT-legal dual sport tire built for medium to hard-pack dirt — with just enough street compliance to get you to the trailhead and back.
A competition-bred, DOT-legal dual sport tire built for medium to hard-pack dirt — with just enough street compliance to get you to the trailhead and back.
Best suited for enduro and trail riders on medium to hard-pack terrain who need DOT compliance for occasional pavement connections — not a commuter or highway tire

Mitas' hardpack-focused competition enduro tire — built for desert racers and dual sport explorers who live 80% in the dirt.
Mitas' hardpack-focused competition enduro tire — built for desert racers and dual sport explorers who live 80% in the dirt.
Best suited for enduro racers and serious dual sport riders who spend most of their miles on hardpack, desert, and rocky trails.
Brands that make a 120/100-18
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 120/100-18 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.