So if i have this straight....

I have a almost new set of RP40's I want to remove from cracked rims. I want to save the tyres, I dont need to save the rims.

What is the BEST method, please?

Soaking the rims in acetone works for me. I have tried boiling them & just made a mess.

Foam soaked off in acetone can be reused. If you chunk a tyre & the rim is still good you can get rid of the foam & then take the good foam off a rim that had had the centre punched out & reuse it. Re glue the good foam to the good rim with shoo goo. I also soak the foam off my worn out 1/8 rims & reuse on tourers. The 1/8 to tourers I use as practice tyres.

Acetone will get them off, but I think it may effect the rubber.

yeah thats the rub, I want to save the rubbers as brand new(ish).

Joe, there is some stuff called "Flash back".... You can get it from most hobby shops. I have seen people remove tires from rims using that.

Hey JAck,

Thanks, will wonder down to LHS and see how mucho dolars.

Joe, its about $8 a bottle. Same size as regular "Track Flash" - Good tire glue