If they wil be used for the track then get track wheels. GP wheels are big, heavy and tbh won't give you the best in terms of peformance or handling on the track...plus RF tyres suck and get burned off very very fast under hard use (fun though cos they go off quick and its like driving on ice, so lots of rear end slide and understeer to play with

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I'd suggest something cheaper like the Team Dynamics Po Race 1.2s as these will fit straight on, are available in black and are far lighter and will be much better for handling in 17" or 16" form than the GPs. Selling these on after won't be an issue either as they are a good wheel and easy to get refurbed if they are spare track wheels.
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