Hi, does anyone know how fast my dt50r would go with a 70cc big bore kit with a arrow underpipe exhaust ??

thanks

How is anyone supposed to answer this question? Not being sarky or anything but it all depends on so many different things like how much do you weigh what fuel are you using do you have a fairing fitted, is this continuous use or just burst speed. Best way of calculating the possible top speed would be to work out what the torque will be comparted to the standard bike then add whatever they say the exhaust will give you on top of the new barrel and piston projections from the manufacturer. then take off all the variables like weight wind and anything that is bolted to the bike that doesn't actually make it go and that should be the approximate top speed. Your going to need to be a maths genius to work it out, best way, build it wring it's neck down the road then take off the 10% that the speedo reads above your actual speed and that will be approximately your top speed.

On 5/17/2016 at 9:24 AM, slice said:

How is anyone supposed to answer this question? Not being sarky  Your going to need to be a maths genius to work it out, best way, build it wring it's neck down the road then take off the 10% that the speedo reads above your actual speed and that will be approximately your top speed.

And hopefully it don't blow up before you get that far .