Cheers for the feedback guys,
Parts wise, i've seen quite a few shops that sell them or that can order them in, even eBay has a massive selection, i think it's the same as the 7.5, so i could just buy a roller.
Engine wise, like i said i have a racinf engine ready to put in so i'm not totally fussed about the gx21, I'll just use it as a spare if anything goes tits up with the engine i'm putting it. Anyway, i'd imagine its not far different from the Hyper, cool to be different i guess, i'll probably just sell the Hyper, any ideas how much its worth? One running fairly new hyper 7 tq plus a roller for spares, few other odd spares and a few sets of tyres?
thanks in advance again