I ran my GTP for the first time today. All i can say is WOW. It's very fast almost to fast . Im running a 1515-1y with a 15/49 gear with a MM esc on 4s FP lipo . I was using proline road rag tires . I plan on getting the IPANIMA racing slicks to use on the track . I cant wait to take it to the track .
what part of ultra gtp will be broken first and should buy for spare parts?
Diff ring and pinion gears are the weak link, buy spares and shim them correctly. If you shim them and use good synthetic grease they will last longer.