Mitas Ultra Heavy Duty Tubes
Ultra heavy-duty inner tubes from Mitas, fit by tire size.
3 fitments · 3 wheel sizes — from $20. Order online or install at MTC Orange County.
The Mitas Ultra Heavy Duty Tubes line covers 3 wheel sizes (18″–21″) across 3 fitments — for dual-sports, adventure bikes, and vintage iron, adventure and dirt bike fronts. The thickest-wall build for the hardest use — extreme off-road, racing, and heavy loads where a standard tube would pinch or overheat. Mitas states the wall thickness on this line: 4mm.
Find your fitment by the size printed on your tire sidewall (for example, a 90/100-18), pick the matching tube, and order it shipped or install it at MTC. Spoked wheels need a tube; if you're unsure, we'll confirm the right one.
Valve stems in this family: TR6. The stem has to clear your wheel, so match the code on the fitment you pick.
Valve stems in this family: TR6. The stem type must clear your wheel — match the code above, or call (714) 516-9059 and we’ll confirm it.
Tube-type (spoked-wheel) tires we stock in sizes this family covers. Check your wheel — a cast wheel runs the same size tubeless and needs no tube.

Michelin's purpose-built desert race tire — lighter, grippier in deep sand, and engineered for high-speed Baja-style competition.
Michelin's purpose-built desert race tire — lighter, grippier in deep sand, and engineered for high-speed Baja-style competition.
The Desert Race Baja is built for one job — fast, deep-sand desert racing — and it does that job better than almost anything else on the market.

Michelin's rally-raid-proven desert tire, DOT-certified for the road sections between epic off-road stages — built for serious adventure and competition riders.
Michelin's rally-raid-proven desert tire, DOT-certified for the road sections between epic off-road stages — built for serious adventure and competition riders.
The Desert Race is purpose-built for rally competitors and remote adventure tourers who demand genuine off-road performance and can accept the trade-offs on pavement.

Michelin's versatile intermediate enduro tire built for mixed terrain — hardpack to loam, soft mud to rocky technical trails — with grip that holds up as miles accumulate.
Michelin's versatile intermediate enduro tire built for mixed terrain — hardpack to loam, soft mud to rocky technical trails — with grip that holds up as miles accumulate.
Best suited for enduro and trail riders who tackle mixed terrain regularly and want a single tire that performs reliably from installation to the end of its life

Michelin's hard enduro-bred extreme off-road tire — built for technical terrain specialists who hit pavement only to get to the dirt.
Michelin's hard enduro-bred extreme off-road tire — built for technical terrain specialists who hit pavement only to get to the dirt.
The Enduro Xtrem is purpose-built for serious dirt riders — if you're spending 70% or more of your saddle time off pavement in demanding conditions, this is your tire.

Dunlop's purpose-built enduro tire engineered for riders who race through sand, mud, and intermediate terrain without swapping rubber between stages.
Dunlop's purpose-built enduro tire engineered for riders who race through sand, mud, and intermediate terrain without swapping rubber between stages.
Best suited for enduro racers and serious trail riders who need one tire to handle varied dirt conditions across long, demanding rides.

Dunlop's dedicated sand-and-mud motocross tire — built for riders who thrive where the track gets loose, deep, and unforgiving.
Dunlop's dedicated sand-and-mud motocross tire — built for riders who thrive where the track gets loose, deep, and unforgiving.
The MX14 is built for one job — dominating sand and mud — and it executes that mission better than nearly anything else in the motocross segment.
Dunlop's hard enduro weapon — a super-soft gummy compound built for riders who need maximum traction on rocks, roots, and technical terrain, full stop.
Dunlop's hard enduro weapon — a super-soft gummy compound built for riders who need maximum traction on rocks, roots, and technical terrain, full stop.
The EN91EX is purpose-built for serious hard enduro riders who put grip above all else and accept the wear trade-off that comes with it.

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.
21 fitments · 10″–21″
21 fitments · 10″–21″
12 fitments · 10″–21″
12 fitments · 10″–21″
47 fitments · 8″–23″
47 fitments · 8″–23″
20 fitments · 16″–21″
20 fitments · 16″–21″
What is an ultra heavy-duty tube for?
The thickest wall available — built for extreme off-road, racing, and heavy loads at very low pressure. Overkill for the street, essential when you're pushing a tire to its limits in the dirt.
How do I know which valve stem I need?
This family ships with TR6 stems, and the exact code is listed against every fitment in the table above. The stem must line up with the hole in your rim and clear the brake/sprocket side, so match the code on the tube to the one that came out of your wheel — or bring the wheel in and we'll check it.
Which tire sizes does one of these tubes cover?
Each row in the table above lists the manufacturer's own fitment range verbatim — many tubes cover several tire sizes on the same wheel diameter (for example a 3.25/4.10 tube fits both of those widths on its rim). Pick the row whose range includes the size printed on your sidewall.
Does MTC install Mitas tubes?
Yes — we mount and balance your tire and tube in-shop, or ship the tube to your door. Call (714) 516-9059 with your tire size and we'll pull the exact Mitas tube.