Originally Posted by
nexxus
I agree that a national set of rules for VTA in Australia would be great, the track I run at is an ex Nitro track so it's quite large (had the Nats there last yr) so to run a 21.5 there would probably result in many of us falling asleep (but if a natural rule set was adopted and we followed suit I'd gladly change over), unlikely you'd ever have to let off the throttle. That said on 17.5 tyre wear is much more pronounced, a set of fronts will last you maybe 2-3 club days.
A 21.5 properly geared using the right motor is not to be snuffed... and wear /cost for this class is also a big factor max fun minimal cost approach hence its appeal... Tyre wear on mine for instance and same reported by many drivers is between 6 and 9 race meets. I actually find the fronts wear more than rear 2-1 perhaps even 3-1. They also perform better as they wear however having said that they are shite on wet tracks...
With bigger tracks where possible it may be the case that perhaps you have a cut through that can be used to make the track slightly smaller producing more competitive racing.. our track although large is more specific to 1/10 and offers us many combinations that we can run to make it optimal length or minimal depending on what we need...