What is happening is that you are traction rolling rather than lacking traction. The same thing happened to me the first time I took my losi rally weapon to the track. One of the easiest things I found to do is to lower the height and possibly get stiffer springs so the weight transfer is not so severe or dramatic. Also, what surface are you running on? I also have a spirit... they are quite cool in an old school sort of way. I was surprised how fast they really are so I added some ball bearings to mine.
Josh Howard on RCNEWB.COM
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