SIDs use a sealed damping cartridge so I can't see there being any real issue, apart from longevity perhaps.
time for a thread hi-jack
I have SID carbon crown forks that the damping unit does not seem to work well. Usually the damping is adjsuted o nthe right leght by truning an adjuster at the bottom (the outers have lable to this effect but the outers are not the original).
On my fork, there is a bolt instead of the adjuster - I removed the bolt and it is a blind hole to keep the lowers in place so no adjustment but there is an air valve on the top of the RH leg ( this is NOT the postive air chamber whcih is in the LH leg).
anyone know anyting about this fork? I did take them apart and as ^^^ said, there is a dmaper unit that did resist movemet so does some dampling ins the RH leg but I guess my question is how can I adjsut the damping or check if the damper unit is past its best?