Uturn is coil and there isn't preload. Set the travel to where you want it and check the sag when your seated on the bike. Look for about 20-25%...less and you'll need a lighter spring, more and you'll need a heavier spring. The damper has rebound adjustment at the bottom of the drive side leg. You can adjust this for quick rebound (lots of small bumps) or slow it down (big bumps or drops with space between them). There is a lock out on top of the drive side leg.
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