| Fred
These are Ohlins FG9050 forks. Here are the recommended settings:
Damping adjustment (allen-screw on fork top) has 20 clicks of adjustment. It should be screwed fully in then backed-off to a point between 9 - 12 clicks to suit.
Compression adjustment (using longish 5mm ball-ended allen wrench through the hole in the forward facing edge of the lower fork). Again, this has 20 clicks of adjustment, and should be screwed in fully clockwise, and then backed-off to a point between 6 - 16 clicks.
Preload (adjust by turning the threaded rod onto which the blue nuts are screwed). Slacken the upper blue nut (it's only a lock-nut) and turn the threaded centre rod with a 13mm wrench. It's impossible to see how far anything has moved (it's all happening internally), but there's only just over a half inch of preload adjustment on these forks anyway, so 15 full turns clockwise will mean its reached its limit. (each full turn equates to 0.04") Don't expect to feel a positive 'stop' though - there isn't one! Just count the turns.
I then just turn each rod anti-clockwise an equal amount until the preload suits me. Finally, tighten the upper blue lock-nut.
Steve  |