The MRT Tires CrossBone is a 35.5x9R18 UTV mud tire with 2.5-inch lugs, spaced so the tread clears itself and keeps biting in deep mud. MRT designed it to pull in both forward and reverse.
It is a 58 lb tire for 18-inch rims, so it suits machines already set up for large-diameter wheels and mud riding.
Key Features
- 2.5-inch lug depth for deep mud
- Lug spread set for tread cleanout
- Designed to perform in forward and reverse
- 35.5x9R18 size
Built To Solve: UTV Tires That Pack With Mud and Lose Traction
- Tread that fills with mud and turns into a slick
- Machines that get stuck backing out of a hole
- Shallow lugs that cannot reach firm ground under deep mud
Best For: Mud Riders Running 18-Inch Wheels
- Mud and bog riders with 18-inch rims
- Owners with the clearance for a 35.5-inch tire
- Not ideal for sand or high-speed desert riding, where a lighter tire suits better
Specifications
- Size: 35.5x9R18
- Weight: 58 lbs
- Lug depth: 2.5 in
- Manufacturer Part Number: MRT-CB35918
Fitment
Fits UTVs running 18-inch rims with clearance for a 35.5-inch mud tire.
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 tires lose traction in deep mud?
Mud packs into tightly spaced tread until the tire acts like a slick. The CrossBone's lug spread is set for cleanout so the lugs keep working.
Can the CrossBone back out of a hole?
MRT designed the CrossBone to perform in forward and reverse.
What rim size does the CrossBone need?
An 18-inch rim. It is a 35.5x9R18 tire.
How heavy is the CrossBone?
MRT lists it at 58 lbs, so confirm your axles and clutching suit a heavy mud tire.
Should I have a shop mount it?
Yes, a 35.5-inch tire on an 18-inch rim is easiest on a tire machine. Balance before riding.
CrossBone or Whiskey Runner?
The CrossBone is a dedicated 18-inch mud tire. The Whiskey Runner is a 35x10R15 all-terrain mud tire that also suits trail riding.
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.
Pair the CrossBone With an 18-Inch Mud Setup
Confirm you are running 18-inch wheels and have the clearance and drivetrain for a 58 lb, 35.5-inch tire, then order the quantity you need. Carry a tire plug kit for punctures in the field.
