Xtrig Sag Adjuster
Xtrig Sag Adjuster
XTRIG’s innovative preload adjuster allows you to fine-tune preload settings quickly with an 8mm socket or T-handle wrench. The external 8mm bolt rotates the shock preload collar at a 1:24 ratio. This is an excellent bolt-on mod because it makes chassis tuning so easy! Small changes in sag can make for big improvements in handling. Rated five stars by Motocross Action Magazine.
Coarse Thread fits all 2011-2015 KTMs. Shock body thread pitch is 1.5mm.
Fine Thread fits most 2010 and earlier KTMs. Shock body thread pitch is 1.0mm.
How to get the most from your Xtrig sag adjuster
Chassis balance describes how weight is distributed on the front and rear wheels of a motorcycle in motion. An unbalanced suspension setup will cause a wide range of handling and suspension problems related to uneven or unstable weight distribution. Spring rates, spring preload, fork height in the triple clamp, and valving configuration all affect chassis balance. While the damper internals are usually left to a specialist, springs, preload, and fork height are all accessible to home mechanics.
Balance tuning procedure:
Start by installing the correct springs for your weight and setting shock sag. This will give you with an appropriate starting point.
Buy an Xtrig preload adjuster. This device allows you to adjust shock sag quickly and easily so you can use it effectively for testing. Installing this unit on a KTM requires disassembly of the shock, so ask your tuner to put it on the next time your shock is in for service.
Ride a typical section of track or trail several times while experimenting with different preload settings. Start at the recommended race sag, then try increments of 24 turns tighter and looser on the X-Trig adjuster to establish the range that feels best. From there, move on to smaller adjustments of 12 turns, 6 turns, and so on until you zero in on the spot where the bike feels just right.
The fork rebound setting can be used in conjunction with shock preload to fine-tune turning feel. The rebound clicker is sensitive, so adjust in increments of no more than two clicks at a time and use caution in straying too far from your baseline setting.
Why can’t my tuner deliver the bike perfectly balanced for me?
Every combination of bike and rider is unique. Some people ride far back on the bike, some are always over the gas tank. Some people brake hard into corners, while others prefer to maintain momentum. Even tire choice and air pressure have a significant effect on balance. Your tuner will provide an excellent foundation for a balanced setup, but some fine-tuning by the rider will give the best possible result.
What does balance feel like?
- Front-end high
- “Floppy” steering. Feels like the handlebars are perched on a teeter-totter. In a slow, tight turn, counter-steering is required to keep the handlebars from flopping all the way over to the steering stop.
- Light and dancy steering. The steering jumps too easily within 10° of center, requiring excess input at the handlebar to keep the steering on line.
- Rider continually feels the need to scoot toward the front of the bike.
- Rear-end high
- Heavy steering feel. Excess input at the handlebar required to initiate and complete a turn.
- Front wheel will “knife” (turn in violently) in sand or soft soil, especially during corner initiation.
- Rider continually feels the need to scoot toward the back of the bike.
- Very little input at the handlebar required to initiate or finish a turn. Calm and comfortable on straightaways. The bike feels almost effortless to ride.
- The rider’s body is naturally returned to the sweet spot in the center of the bike, not feeling the need to adjust his riding position.