I race at mainly small indoor clubs but Crewe occasionally whichis a fair size track. Due to very few members running TC nowadays we mix 13.5 boosted and 17.5 blinky but guess which are generally quicker?
I still prefer 13.5 but will be making the change as I have seen the drop in power improve peoples driving.
There is still 3 classes - Mod, 13.5 open and 17.5 blinky
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