My german are not so technical,

but we have bent an original sprint fork leg 10cm to the front to increase wheelbase and to slacken the steering angle to make it more stable at high speed. This is for dragrace only.

the problem is that the fork became unrideable, extremely unstable and yes very nervous to drive....

Does anyone know how to do this in the correct way, what dimensions to modify and how to measure and calculate them? Please I need good advices here but any comments are of course welcome.,

What steering angle does the sprint fork have originally? and the px? how many increments on the angle would probably make a difference?

thanks

truls221

I would suggest to install a PX fork with a Pailoli Malossi shock absorber (made for the PK) and shorten the fork in order to decrease the swingarm angle. This shortens the wheelbase but makes your scooter more stable at higher speeds. if, for example, the PaioliShock is 5cm shorter than the original, you should shorten the fork by 3 cm.

After all I´m not sure if a PX fork fits into a Sprint.