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There's less contact on the ice so it does pull easier. If you want it to pull straight, make absolutely sure they are install square to the edge and in parallel.
I was thinking if puchasing a runner kit for my clam nanook.But fear that installing these would make the sled pull harder.I pull it manually. The Clam website states that it makes the sled track straighter and glyde easier, but I am assuming being pulled by a snowmobile.anyone with any info, please advise.
Mine pulls easier with high density plastic runners on it. I made my own for about 8 bucks.
I don't know what the new Clam runner kits are like, but a few years ago I put on the ones that have several deep notches in each runner. What a PITA, it made the sled 10x harder to pull, the runners just sucked into the snow.