Maxxis RAZR MT772 Mud Terrain Tyre Collection Page
Maxxis's flagship mud terrain, built on its off road racing tyres: an Armour Ply casing, a three ply sidewall and 15.5 mm of stepped, siped tread, and quieter on the road than a mud terrain has any right to be. Still a mud terrain, with the wear and noise that go with one.
- 97 Australian owners rate it 87 percent: off road 95, dry 91, wet 83, noise 78.
- 10,000 km of desert, rock and mountain in a 2019 magazine test: no punctures, no chipping, about 3 mm of wear.
- Built to resist damage: dual cord Armour Ply, 3 ply Debri-Shield sidewalls, ejector bars, a compound against cutting and chunking.
- No European label on the sizes we list, and no comparison test against other mud terrains.
- Louder as it wears, and it clogs in sticky mud: the two things owners criticise.
- Ordered in from the New Zealand distributor, usually one business day. 1 size here, 15 inch.
What it is built to do
A mud terrain for the four wheel drive that goes looking for mud, sand and rock, built on the casing Maxxis races on, with enough road manners to get there.
Maxxis calls the MT772 the explorer, untamed, and it is the new generation Razr MT that brings the company's off road racing technology into a road legal tyre. The casing is an edge to edge dual cord Armour Ply, the sidewall is three ply with Debri-Shield blocks wrapping around the shoulder, and a high tensile nylon cap ply sits under the tread. The tread is deeply sculpted two step blocks with sipes cut across them, stair shaped shoulder blocks with wrap around lugs, and razor shaped ejector bars in the shoulder grooves, in a compound loaded with damage resistant fillers. Maxxis lists it in 22 sizes from 15 to 22 inch; we list 31x10.50R15 109Q 6 ply.
How the tread and casing do their job
Maxxis names its features in its own words. Here is what each one is, how it works, what you notice, and what we can and cannot put a number on.
Armour Ply and the three ply sidewall
A tyre's casing is the fabric skeleton under the rubber. The MT772's casing ply runs edge to edge and is a dual cord, two reinforcing fibres twisted into each cord, so a stone that would push through a single cord sheet is stopped. The sidewall is three plies thick with Debri-Shield blocks wrapped around the shoulder, so a rock meets tread rubber before it meets the flank. That is the difference between a scuff and a write off on a river crossing, and it is why the tyre can be aired down to 12 psi on a dune without folding. 4X4 Australia's 10,000 km test found no punctures and no chipping.
Deeply sculpted two step blocks
Each tread block is cut in two levels, a full height face and a lower step, so the block has twice the edges of a plain one. In mud and soft ground the upper edge bites first and the lower step bites as the block sinks, and the block flexes at the step to mould itself over a rock. The step also gives the sound somewhere to break up as the block hits the road, which is part of why this is a quiet mud terrain on seal. The sizes we list carry 15.5 mm of tread; owners say the noise climbs as that depth goes down, which is the two step doing less as it wears.
Siped tread blocks
A sipe is a fine slit across a block, and a mud terrain usually has none, because big plain blocks are simpler to mould. The MT772 cuts sipes across its blocks, so every block carries extra edges that bite on a wet road and on hard packed clay, and the edges keep working as the block wears. On seal the sipes are why owners score the wet at 83 percent and describe the wet grip as surprising for a mud tyre: they let water out from under a block that would otherwise sit on top of it. In mud they add little, which is why the block shape does that job.
Stair shaped shoulders with wrap around lugs
The shoulder blocks step down the side of the tyre like a staircase and carry on down the sidewall as lugs. When the tyre is aired down on sand or sunk in a rut, the part of the tyre touching the ground is the shoulder and the upper sidewall, not the tread face, and that is where the stairs and the lugs are. You notice it as a tyre that keeps pulling when the tread is buried, and that climbs out of a wheel rut instead of spinning in it. On the road the open shoulder is part of the noise, and the wrap around lugs are the second layer of sidewall armour.
Razor ejector bars in the shoulder grooves
The wide grooves between the shoulder blocks are exactly where mud packs in and stones wedge, and a packed mud terrain is a slick. Maxxis moulds thin raised bars along the floor of those grooves. As the tyre flexes the bars flex with it and push out what has packed in, so the grooves clear on the next rotation and a stone is levered out before it drills into the casing. You notice it as a tyre that cleans itself when you get back on the throttle; some owners say it still clogs in deep, sticky mud, which is the honest limit of any ejector.
A compound against cutting and chunking, under a nylon cap
Rock does not wear a mud terrain out so much as tear pieces off it, chunk by chunk from the block edges. The MT772's compound is loaded with chemical fillers that make the rubber harder to tear, and a high tensile nylon cap ply under the tread holds the tread band flat and round at highway speed, which is what keeps a tyre this size stable at 100 km/h. You notice it as square block edges after a season of rock, and a tyre that does not wander on the motorway. Our listing carries no treadwear grade, so the wear numbers on this page are the magazine's and the owners', not a grade.
The sizes we list
Tread depth is from Maxxis's own specification sheet, and it is worth a look: most sizes carry 15.5 to 15.8 mm new, and the two 20 inch street sizes carry 12. The European label is measured size by size, and mud terrain sizes are rarely sold in Europe, so most carry none. Read on 23 September 2026.
| Size | Load, speed and ply | Tread depth new | European label |
|---|---|---|---|
| 31x10.50R15 | 109Q 6 ply | 15.5 mm | no European label |
Where the Razr MT772 fits and where it does not
Good for
- Four wheel drives on 15 inch wheels that go into mud, sand and rock on purpose
- Beach and dune driving, where a three ply sidewall can be aired right down
- Drivers who want a mud terrain they can still live with on the drive there
Better served by another tyre
- More seal than mud: the Maxxis Razr AT811, the aggressive all terrain on the same casing
- A light commercial on 14 or 15 inch wheels: the Maxxis Bravo MT753
- The house brand price: our Anchee Grandtrac MT1, 11 sizes from 15 to 17 inch
Is the Maxxis Razr MT772 actually any good?
What is it not good at?
Razr MT772 or Razr AT811?
What does the M in MT772M mean?
How long will it last?
Why is there no European label?
Which way round does it go on?
What pressure should I run?
Razr MT772 or Anchee Grandtrac MT1?
How long does it take to get one?
Can you fit them for me?
- Speed ratings, load indices and ply: our own listings for the MT772, read 23 September 2026
- Armour Ply, the three ply Debri-Shield sidewall, the two step blocks, sipes, stair shaped shoulders, ejector bars, the compound, the nylon cap ply, the 22 sizes and the tread depth per size: Maxxis New Zealand's MT772 page and the Tyremax Razr MT brochure, read 23 September 2026
- Typical life of 80,000 to 100,000 km with correct inflation: Maxxis New Zealand's MT772 page, read 23 September 2026
- 97 owner reviews at 87 percent with the category scores, and the clogging and noise criticisms: tyrereview.com.au, read 23 September 2026
- The 10,000 km test of LT285/70R17 on a Ford Ranger, no punctures, about 3 mm of wear, the 40,000 km projection and the pressures used: 4X4 Australia, 2019, read 23 September 2026
- The absence of any comparison test against other mud terrains: our own search, 23 September 2026
- Anchee Grandtrac MT1 sizes: our own listings, read 23 September 2026
European labels apply to European market sizes. New Zealand has no tyre labelling scheme, so the grades above are context rather than a local standard.
Other ranges
Where this sits against everything else we stock.
All Tyres
The full range
Passenger Car
The everyday tyre
4WD
HT vs AT vs RT vs MT
All Terrain
Gravel, sand, light mud
Highway Terrain
Quiet, sealed roads
High Performance
Grip and speed rating
Keep reading
The guides behind buying a tyre, written in the workshop.