Alright so i keep reading posts about how each company is the best and they make the most power, and there stuff is the fastest blah blah blah. I wana see our sponsors on this take the same bike keeping an agreed bore size and work there magic. lets see whos has the most power and the fastest and all that. I read TTM racing post bout them being all that, and for all i no they might be. But if they are there sure are a lot of people running max power and other brands. I no that price can be an issue some, not all have the choice to buy the best of everything, but i no there are some people on this site that make a lot of bread. So line them up and lets see what they got. Start with Z400 displacement no bigger than say the commom 434 or 450 displacement, and run with it.