RE: down time
well i ran my buggy with the volcano tires on it.wasent very pretty.it melted the clutch shoes inside the clutch housing withen 5 minutes.didnt have any take off but had top end speed.it did bounce a great deal lol.maybe if i get the 2speed transmission for the buggy that will make it up.also maybe not enough engine to really turn the tires i dont know.its a .15 engine.the hubs and all did great,no problem there.