Don't know about the specs.... but based on my conversations with the PREZ of Tekin, I know he is determined not to have a disasterous debut like the Monster Max. They are testing in a lot of different vehicles, Pushing them to extreme limits to assure they perform the way we expect them to. They have made it very well known they are testing in race and bashing conditions in the vehicles we want to use them in to assure the durability necessary to support this great new class of vehicles.