Quick fact: when mud riders talk about narrow tires, they mean it. A 9.5-inch-wide tire on a 35-inch frame is built to slice down into the slop rather than ride on top of it.
That is the idea behind this EFX MotoSlayer 35×9.5-20 tire and wheel kit on MSA M45 Portal Machined wheels. You get four tires, four wheels, lug nuts and center caps in one package.
The EFX MotoSlayer
The MotoSlayer is one of EFX’s big, aggressive tires, and it shows up on a lot of serious mud builds. The tread is designed to dig in and pull through deep, soft ground. On a lifted side-by-side that spends its weekends in mud holes, it is exactly the kind of tire riders choose.
35×9.5-20: tall and narrow
At 35 inches, this tire gives a machine a lot of extra ground clearance. The narrow 9.5-inch width helps it cut through mud toward firmer ground, and it can make steering easier than a wider tire of the same height. The 20-inch wheel gives the build a modern stance and means less sidewall than smaller wheels, which can help the tire feel steady at speed.
MSA M45 Portal in Machined finish
The MSA M45 Portal has a machined finish that gives the wheel a bright, detailed look. It stands out on a lifted machine and pairs well with almost any color of plastics. A machined wheel also takes a quick rinse after a muddy ride to keep that detail looking crisp.
Is your machine ready?
A 35-inch tire needs a lifted machine. Many riders running this size use portal gear lifts, which add clearance and gear reduction so the machine can turn a tall tire without overworking the clutch. Others use a tall lift kit with upgraded axles. Either way, think about clearance at full lock and full compression, and about clutch, axle and brake upgrades to handle the added weight and leverage.
Check that the kit matches your bolt pattern and that the wheel offset works with your suspension, portals and brakes. If you are unsure whether this package fits your build, call the Wild Boar team at 850-912-4350. We will walk through your setup and help you get the right set the first time.


