Snacks are available track side also tyres,wheels and inserts can be brought trackside.
What type of batteries do you have?. If they're nimh or nicads 2 packs will be a struggle because they need to discharged before re-charge and you will not get charged in time for the next race. If you have lipo's then 2 batteries will do as you can charge them without needing to discharge the packs. Some people use the one lipo battery pack and just about manage to charge in time for the race but I would recommend 2 packs of lipo's or at least 4 nicad or nimh battery packs.
Hope this helps?
