make it 62mm then purchase the uma piston kit 62mm forge2 years vixion user/ next week upgrade for pitsbike 60mm

and that 62 would ask for a stronger conrod, big valve head and bigger carbsmake it 62mm then purchase the uma piston kit 62mm forge![]()

conrod as of now tested is faito and tkrjand that 62 would ask for a stronger conrod, big valve head and bigger carbs![]()

peace bros!
hahahahasir, have u used in long ride? can it reach 170kph?62mm bore kit need many parts change to match the bore size! Most important is fuel economy is not good for daily ride!
sir, what is your top speed? can you share it with us or pm me if you like..i've been using vixion block for 2 years now, with 22/19 valves, stage 2 camshaft 5.8 lift, brt dualband. so far so good. nothing beats genuine yamaha block.. high rev all the time and still is in good condition.. very much satisfied, as the bore size is perfect for the stroke ratio. no need to replace conrod and pin.. i bet those with bigger block would have a hard time to keep up with me..peace bros!
My top speed is 142kph on my x1r speedo with 80/80 front tire. 14/38 sprocket.. my bike could run 400m in 11.9 secsir, what is your top speed? can you sIt;hare it with us or pm me if you like..

in your 142kph on x1r speedo this means you are running with racing cdi..and your rpm reach 10500rpm in stock gearing primary to secondary with stock rear tire..My top speed is 142kph on my x1r speedo with 80/80 front tire. 14/38 sprocket.. my bike could run 400m in 11.9 sec
if you wanna save some money, then try just the vixion block rather than buying racing cam and cdi. that was the only mod i had before. try it and youll see how faster you can go than a raider150.![]()
just to clarify bro