Supposed to have a better seal than others too. Low friction or something. On their extreme model you can adjust low and high speed damping.
2013 BMW F800GS, Cordoba Blue, ASC, ESA, ABS
2012 BMW G650GS - 13,000 miles ***SOLD***
"If you're not mixing gas, you're not hauling ass!"
"A clean GS is a dirty shame."