Just how good is aftermarket coil spring WP suspension? We compare it to KYB, Showa and WP AER air 

Always fancied some seriously cool aftermarket suspension for your dirt bike but wasn't sure just what a difference it might make?
We put the latest WP kit to the test on Kawasaki, Honda and KTMs to see just how good it is.
Riding on the all-new Oxford Moto Parc track, MotoHead's Dave Willet rode the bikes in stock form then tried the WP XACT cone valve spring forks, and Supertrax rear shock on all the bikes.
And he also tested the more affordable cartridge damper kit and spring fork conversion for the WP AER forks on the KTMs as well as a rear shock bladder conversion.