I have done a lot of trail riding in Quebec over the years. Rode with many high miler riders. Never met anyone who felt their shocks had deteriorated to the point of making them unacceptable. Of course reading Doo talk one sees that many people feel their shocks are spent in a couple of thousand miles, requiring rebuilding. Maybe that has to do with they way they ride their sleds. I thought I would do a closer look at shocks this off season as I have a nitrogen tank and regulator from my motocross days and lots of time on my hands.
Can someone explain how take apart shocks with separate gas and oil chambers degrade and thus impact their function. Additionally what life in miles should one expect before their function is noticeably impacted for saddle bag touring on groomed trail in Quebec? Also would using aftermarket shocks or XRS shocks with multiple adjustments allow one to adjust the shock characteristic as the miles add up to compensate for the shock deterioration?
Correct me if I'm wrong but it seems to me that two things are changing in the shock as the miles add up. One is material is worn off the various parts turning the oil into a mixture of oil/metal/oring. I would guess this makes the oil thicker. Two, as the internal seal wears, gas must start to cross over into the oil, emulsifying it. I would guess the oil/gas mix starts to act like thin oil.
Thanks for your input