You're in for a treat- I race on '05 144 that's been stroked to a 155 by Eric Gorr. It had a 9oz fww, but I don't use it. My suspension is' 06-up with Race Tech gold valves. Depending on how much you weigh, and the type of riding you do, the torque(yes, on a 125) of the stroker may suit you... I'm going back to a 250 this season, so I'm de-stroking mine for motocross use....