High purr fax
8 or ten years ago when they came out we though they might be the second coming, never have hyfax problems again and they came in various color. no overheating, bought and used 5 or 6 sets myself and sold plenty to pals, and many of those sets are still on the snow. What I found out was.
1. you can't ride 10 miles on the hiway in the summer, the teflon stip gets hot and melts the surrounding regular old plastic that holds the teflon strip and then you chit out all that stuff and come to a halt. We had to test it all out.
2. never could see or prove or confirm better mileage ? that your track ran freer? as good maybe, but all the sets I installed no one ever went........WOW.
3. they can and do last a long time with reasonable care.
4. Had some blow the teflon strip or last 20" of teflon strip out the back, so works best to have a screw up through the strip in the back rather than just the front screw ala cat.
5. fast way to ditch $139 or what ever they are these days.
6 can't hurt nothing, BLING FACTOR WAY UP.......or up some. In the day no mostly aluminum/ some fabric /big bore back east motor custom MTN hill crushing sled was complete without them.............now........maybe just part of sledd'n history.
5.