Those are WP "Extreme's"... used in 1999 and 2000.
Inmate konflictmotorsports provided me with some custom springs for the ones I have on my 1981 R80G/S..... typically they do require re-valving for heavier bikes to work, but if you need to shorten they it is an easy job.
http://www.advrider.com/forums/showt...hlight=extreme
