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While on the bike, make sure that your damper tube's etched indicator line is facing you in the 6 o'clock position.
Choose your component for an initial setup guide:
01. Initial compression settings
BOXXER ULTIMATE
Make sure that your High Speed Compression (HSC) and Low Speed Compression (LSC) knobs are in the middle (0) setting.BOXXER SELECT
Make sure your Compression knob is in middle setting by rotating the knob in either direction until it stops, then toward the middle 7 clicks.02. Initial air spring setup
Scan the QR code on BoXXer’s crown, enter your serial number into the TrailHead app, or check out the chart on the fork’s lower leg to get a starting air pressure suggestion.
Remove the air valve cap and thread on the shock pump. Add or remove air depending on the recommended starting pressure and remove the shock pump.
03. Set initial rebound
Adjust the Rebound knob based on the TrailHead suggestion—the suggested setting is the number of clicks from Closed or slowest position, indicated by the turtle icon. This is just a starting point.
04. Air spring equalization
Slowly compress the fork a few times—about 12% of its travel—to equalize air pressure between the positive and negative chambers. You may hear a brief hiss as air transfers between the chambers.
Attach the shock pump and re-pressurize the air spring to the suggested starting point. The pressure can drop as the air moves into the negative chamber during equalization, requiring you to re-pressurize the air spring until you get to the right pressure.
Move the red o-ring against the rubber wiper seal. This will indicate how much travel you’ve used during your ride, which tells you if your suspension is set up correctly. Ideally, you use most of your travel while riding—occasional bottom outs on bigger impacts is normal.
01. Initial compression settings
VIVID COIL
Make sure your Compression settings (including both High and Low Speed Compression if you have them) are the middle (0) setting, Threshold is unlocked (if you have it), and Rebound is set to the fully Open position (toward the jackalope).
02. Set preload
Before setting sag, rotate the spring preload adjuster counterclockwise until there is no resistance against the spring, removing any preload currently on the spring.
Tech tip: Hold the rear end of the bike off the ground when checking preload to make sure there's no free play between the spring and collar at top out.
Rotate the spring preload adjuster clockwise two full turns to set the minimum preload.
03. Set sag
Slide the bottom out bumper so it contacts the shock body. This is how you’ll measure sag.
With riding gear on, sit on the bike saddle, allowing your rear shock to compress. Allow all of your weight to compress the shock, lifting feet off the ground if necessary. Gently step off without compressing the shock more. Move as smoothly as possible—avoid any sudden movements, or you’ll want to repeat steps 4 and 5.
04. Check sag
Check sag by referencing where the top of the bottom out bumper falls within the sag percentage marking on the shock shaft.
For coil shocks, we recommend between 25-30% sag. Depending on your riding style and terrain, sag can be set 5% more or less than the recommended amount.
- If sag is less than 20%, install a lighter spring weight, then repeat this process.
- If less sag is needed, add more preload to the spring, and repeat the measuring process until sag is correct.
- If you cannot reach your desired sag range after five full clockwise turns (the maximum), install a heavier spring, then repeat this process.
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SUSPENSION FINE TUNING GUIDE
After a few laps, once you're more comfortable with your bike, you may want to tweak your settings to find your ideal ride feel. Check out the DH Suspension Fine Tuning Guide to dial in your suspension.