Specialized epic.
100mm shock. I set pressure then did autosag. Sag is 15mm.
But noticed only 50mm of the shaft showing?
Confused?
It says 20-30% sag and 15% off 50 is 15...so if 50mm of rear travel it would make sense...but it says 100mm of travel everywhere I look on line
I assume the 100 mm is the rear suspension travel. You have a 2" (50 mm) stroke shock and a leverage ratio of 2. That's normal.
Leverage ratio x stroke = wheel travel
2 x 50 mm = 100 mm
The 100mm is the travel of the rear wheel, not how far the shock shaft moves. There are pivots/linkages to take into account.
100 mm of travel - Epic shock is 51 stroke. Roughly speaking, for every mm of shock movement, you are getting twice as much travel. So 15mm is 30% sag.
Thanks. Appreciate the help