journeyman
Active member
I also have a 1.25" 9818 Predator track unstudded. That day I was seeing 115mph on the speedometer. I didn't have a GPS available, but last year I was only seeing 109mph and the GPS said 102 mph on the same lake. The first season I ran the stock track w/out studs and saw 125mph on the speedo.(tailwind) The ATTAK we had with us was seeing 120mph that same day we ran the Mach's. The dealer in Greenland said for some reason the ATTAKs usually run better speeds out there box stock. Probably the longer track hooks better and they are geared down a bit. I think he wants to clutch the ATTAK. I suggested Ulmer's kit. He's not real mechanical, so I said I'd set it up for him.