The inner hole on the rear arm is something Iain Mellish did, I tried it and found it to help the car square up better coming out of tight slippier corners. It probably slightly reduces the speed at which you can take fast chicanes but the tradeoff is worth it as if the TM2 suffers with anything it seems to be putting the power down on slippy stuff and the rear stepping out. I've just got a ball diff to try this week which I tried briefly last night, first impressions are that it was a bit more fluid to drive, gear will be better on high grip though I think.
The front wing is just something I made from an old Losi front wing, its very basic, all it does is fill in the gap in the front shock tower, it has a slight scoop. I fastened it using the two front screws holding the front bulkhead on.
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