Sprindex is patented tech that lets the rider fine tune their coil shock's spring rate with the tool-free twist of a dial.
Adjusting your shock's spring rate can profoundly improve your bike's handling and suspension. Spring rate is the force required to move a spring a given distance and independent of preload. For example, a "400 lb/in" spring requires 400 pounds to move the spring 1 inch and 800 pounds to move a spring 2 inches. Preload is how much force is required to start moving the spring. Follow your shock manufacturer's instructions for preload amount and sag and other shock adjustments. Your Sprindex coil behaves like a regular coil that has a spring rate the same as your adjusted Sprindex spring rate. Adjusting your Sprindex does not change the length of the coil and does not change your preload. Preload is adjusted normally and with the threaded ring that came with your shock.

Details:

• Includes spring, adjuster, and 5 performance adapters
• Lightweight (highest grade steel allows less material)
• Available in 4 spring rate range options
• 65 mm / 2.6" stroke
• 142 mm spring length