The MRT Tires X-Rox DD is an 8-ply UTV rock tire with a 6x Kevlar belted sidewall, offered from 30 to 39 inches on 14, 15 and 18-inch rims. The 35, 37 and 39-inch sizes also come in a sticky compound for extra grip on rock.
It is DOT compliant, has a 25/32-inch tread depth and is backed by MRT's 1 Year Sidewall Warranty.
Key Features
- 6x Kevlar belted sidewall
- 8-ply construction
- DOT compliant
- 25/32-inch tread depth
- Sticky compound options in 35, 37 and 39-inch sizes
- Backed by MRT's 1 Year Sidewall Warranty
Built To Solve: UTV Sidewall Damage and Lost Grip on Rock
- Sidewalls cut on ledges and sharp rock
- Tires that slip on slick rock faces
- Needing a big-diameter tire for an 18-inch wheel build
Best For: Rock Riders and Big-Tire UTV Builds
- Rock and technical trail riders
- Owners running 18-inch wheels and 37 or 39-inch tires
- Riders who want a DOT-compliant rock tire
Specifications
- 30x10R14: 38 lbs
- 32x10R15: 42 lbs
- 35x10.5R15: standard and sticky
- 37x10.5R18: 55 lbs, standard and sticky
- 39x10.5R18: 60 lbs, standard and sticky
- Construction: 8 ply, 6x Kevlar belted sidewall
- Tread depth: 25/32 in
- Load rating: 1,170 to 1,420 lbs
- DOT compliant
- Warranty: MRT 1 Year Sidewall Warranty
Fitment
Fits UTVs running 14-inch (30x10R14), 15-inch (32x10R15, 35x10.5R15) or 18-inch (37x10.5R18, 39x10.5R18) rims with clearance for the chosen size.
MRT tires are sold individually and fit by rim diameter, not by vehicle make or model. Confirm your rim diameter, the width your rim supports, and the tire clearance your machine has at full suspension compression and full steering lock before ordering. Fitment is not guaranteed on unlisted applications.
FAQ
Why do my sidewalls keep getting cut on rock?
Ledges and sharp rock slice standard sidewalls. The X-Rox DD uses a 6x Kevlar belted sidewall.
What does the sticky version change?
It uses a softer compound for more grip on rock. It is offered in the 35, 37 and 39-inch sizes.
Is the X-Rox DD DOT compliant?
Yes. MRT lists it as DOT compliant.
Which rim size do I need?
30-inch: 14-inch rim. 32 and 35-inch: 15-inch rim. 37 and 39-inch: 18-inch rim.
Should I have a shop mount 37 or 39-inch tires?
Yes. Large tires on 18-inch rims are much easier on a tire machine. Balance before riding.
X-Rox DD or SlikRok X-Rox Sticky?
The SlikRok is a single 37x11R15 sticky version made with SlikRok Productions. The X-Rox DD covers 30 to 39 inches on 14, 15 and 18-inch rims.
Why MRT Tires
MRT (Moto Race Tire) builds its UTV range around anti-puncture sidewall construction. Its race, desert and rock lines use Kevlar- or aramid-belted sidewalls, and several models are offered in a sticky compound for riders who need more grip. Dunes 2 Dezert SXS carries the MRT line alongside the wheels, lug hardware and repair gear you need to finish the job.
Complete Your UTV Rock Tire Setup
Choose your size and compound, confirm your rim diameter and clearance, and order the quantity you need. Big rock tires deserve a plug kit and deflator in the rig.
