Frequently Asked Questions


Why are Pro-File runners more expensive?

The costs of design & manufacturing process are significantly higher for today’s high tech products like Pro-File runners. These are not bent rods with studs & carbide welded on. Pro-File runners are trail tested and the keel shape is developed to best suit each ski & snowmobile they were designed for. This is visually & functionally different than all other runners. Pro-File runners are not designed for the beginner or average snowmobiler; they are for guys & gal’s that want that extra confidence the sled will turn when the rider wants it to.   


What difference will I feel riding with Pro-File runners?

The most noticeable difference is when you steer the handlebars the sled reacts instantly. You will learn very quickly that you turn the handlebars less to make the machine follow the corners. The feeling in your hands will be smoother with less jerky feedback from the handlebars. Dramatically better steering control in loose snow.


Will Pro-File runners steer harder?

Any runners that are longer & deeper into the snow will steer harder than 3/8” factory runners. Pro-File “Shorty” runners are the easiest steering high performance runners you can buy. They require very little more muscle than factory runners. “Long Keel” runners require more muscle but are easy to steer in the deep snow conditions they were designed for. On machines with power steering the rider will not feel any difference in muscle effort with Pro-File runners.


What is the difference between Pro-File “Long Keel” & “Shorty” runners?

“Long Keel” runners were developed specifically for Skidoo Pilot 5.7 & DS-2 skis. The arched shape of the skis matches the Pro-File long runner design perfectly. Long Keel runners have exceptionally good steering control in deep snow. “Shorty” runners were designed to fit in place of the standard runners with no modifications to the skis. They are similar in length to the factory runners and match the flatter shape of Arctic Cat, Polaris & Yamaha skis better than long keel runners. “Shorty’s” are easier to steer in a wider range of trail conditions. “Long Keel” runners require extra installation steps. “Shorty” runners fit directly in place of the original runners and install easily in original size holes. “Shorty” runners are less expensive to build than long runners.


What about “Darting” or skis following the grooves in snow from other sleds?

A simple way to explain “Darting” is when the snowmobile wants to follow other ski grooves in the snow and causes the machine to dart side to side from one set of grooves to another. This is very uncomfortable for the rider. The Darting feeling varies greatly depending on the snow conditions. Generally darting is more noticeable in hard pack and less in loose snow. Pro-File runners arched keel design & wider flat runner surface act similar to a boat getting on top of the water at faster speeds. This same action allows Pro-File runners to get on top of the snow and lets the rider steer easily across other grooves in the snow, not follow in them.  Riders are always telling us they notice this feeling and appreciate being able to comfortably go straight down the trail and stay in their lane more easily. Darting will be felt the least with the original factory 3/8” runners. If you don’t believe it take the runners off and ride your sled, Darting will be gone but the sled will not turn well enough to stay on the trail. Pro-File runners cut deeper into the snow than the factory runners which can make darting more noticeable in some trail conditions. If darting is too uncomfortable for you on today’s trail condition change back to the factory runners until the trail conditions change back to looser snow. If you’re going to borrow a sled to a beginner or inexperienced rider put the 3/8” factory runners on the skis to make the steering less aggressive & the effort as easy as possible. But remember if you have Pro-File runners on your sled you must slow down your riding pace so they can keep up without running off the trail. After a couple hours riding let them try your sled with Pro-File runners and see if you can keep up. You may be surprised.  


Ski Fitment?

Pro-File runners are built for the most popular factory skis 2005 and newer on all 4 brands. When possible we use the numbers molded in skis as our reference but unfortunately not all the manufacturers do this. We also have dimension drawings with pictures in Buy Now area showing stud location for easy measuring. Pro-File runners only fit the specific ski it was designed for unlike other bent rod runners that may fit several skis such as mountain vs. standard skis within the brand. Even though the mountain ski takes the same factory runner as standard ski Pro-File runners only fit the skis shown in our information.


What is the difference between Pro-File “Long Keel” & “Shorty” runners?

“Long Keel” runners were developed specifically for Skidoo Pilot 5.7 & DS-2 skis. The arched shape of the skis matches the Pro-File long runner design perfectly. Long Keel runners have exceptionally good steering control in deep snow. “Shorty” runners were designed to fit in place of the standard runners with no modifications to the skis. They are similar in length to the factory runners and match the flatter shape of Arctic Cat, Polaris & Yamaha skis better than long keel runners. “Shorty’s” are easier to steer in a wider range of trail conditions. “Long Keel” runners require extra installation steps. “Shorty” runners fit directly in place of the original runners and install easily in original size holes. “Shorty” runners are less expensive to build than long runners.


Mileage & Wear & Warranty?

We have run several sets of Pro-File runners over 5000 miles each in the Upper Peninsula of Michigan and they are still useable even after spring riding. Mostly we have great snow conditions in the U.P. which extends the mileage life of ski runners a lot. When riding in central Michigan trial conditions are usually less snow, more hard pack & icy and a lot more SNIRT from sandy ground base. Whenever you see brown snow on the trail your ski runners are going through the snow into the dirt below. This shortens the life of the runners dramatically. There is no way to give an expected mileage number in these conditions and it is just part of our sport. Pro-File runners have more steel & carbide material to wear away than most other runners. More material means it will take longer to wear them out. Remember this is a SNOW mobile designed to be ridden in snow not SNIRT. Skis, runners, tracks & slides/hyfax are normal wear items on a snowmobile, just like tires on a car. There is never a warranty or guarantee on mileage life for off-road tires, skis, tracks or any other components that contact the driving surface. We will repair or replace runners that are defective from failed welding at studs or carbide inserts during normal use. Returning runners for evaluation is required.