These actually did “work” in the sense that they did kick air up over your feet if you had bigger feet. I know for me I never felt a difference, but some of my friends with bigger feet did note they could feel the air hitting their feet without it, and didn’t feel that same air with it installed.
Regarding the GFC turbo-fan wheel… Just run a better wheel and you don’t need 3D printed gimmicks to keep the tire cool. It might have some benefit if you are wanting to run a certain kind of wheel design for structural purposes, but also want the cooling properties of a different wheel design. But I haven’t seen GFC use them since the SuperNats that year, so either they were banned or deemed unnecessary.
We did some practice testing with wheel coolers. Had front and rear ones my son designed. Found that I could start him with pressures approx 1 psi higher on a warm summer day when using them. Could maybe allow you to have more early grip without the late fall off on a hot Texas day.
Unfortunately we had some durability issues in testing with the design and my son lost some of his momentum on tinkering with them. Didn’t help him that we finished the season on a thin budget and limited practice time.
Not necessarily sure how useful it is… but Ive wanted to run a moto grip for a shifter for a while now. Printed a quick adapter housing an m10 nut to thread onto the shift lever. Its just a slip fit to thread, and the grip clamps on. The inside is bored to and slides over the OD of the lever, and the nut is encased in filament, and solid after. Done deal.
Edit: for whatever reason didnt get a picture of the completed part, but part encasing the nut is what I wanted to show.
It might have some benefit if you are wanting to run a certain kind of wheel design for structural purposes, but also want the cooling properties of a different wheel design. But I haven’t seen GFC use them since the SuperNats that year, so either they were banned or deemed unnecessary.
