I run some 20" AMS Sand Snakes, don't know if they are made anymore, they're not heavy. I'm afraid a set of 18" would put the skid to close to the ground. I agree the Sand Stars are heavy, but the Brats are 21" Like I said, 20" haulers rubbed the heel guard, but the Sand Snakes cleared,
I still added 2" to swingarm.