b. Spring Rate: The spring rate is the stiffness (or cushiness) of the shock. Once sag has been set
for your weight, you may find times when riding conditions warrant more or less stiffness to your
suspension. You can adjust the stiffness by turning the Spring Rate adjusting Ring clockwise (stiffer) or
counterclockwise (softer).
Before every ride and after each spring adjustment, slide the rubber Bump Stop all the way down
against the shock body. If, as you ride, the bump stop moves all the way up against the top spring
retainer plate, your spring adjustment is not stiff enough. You need to increase the spring rate.
c. Rebound Rate: Some Spinner Coil Shock models have a red rebound control knob (see
illustration above). Rebound rate is the rate at which the shock returns to its static (sag) position after
compression. Turning the control knob clockwise (in) slows the rebound rate; turning it counterclockwise (out) speeds up the rebound rate.
The starting point for tuning the rebound rate is achieved with a Curb Test:
1) Turn the Rebound Adjusting Knob all the way counter-clockwise, the fastest rebound rate. Note
that the knob has click detents every quarter turn.
2) While sitting in the saddle, ride the bike off a curb and count the number of times the rear
suspension bounces before it returns to normal sag position. You want to achieve one
suspension bounce.
3) Now, turn the Rebound Knob a quarter turn (the next click detent) clockwise, and repeat the
test, counting the number of bounces.
4) Repeat step 3) until you achieve one bounce of the suspension, and record how many clicks
clockwise you have turned the Rebound Knob. This is your “normal” rebound rate setting.
Different terrain conditions may warrant adjusting the rebound rate up or down; but you should
keep a record of the “normal” rebound position, along with your normal sag air pressure, as a
reference
When tuning suspension, make only one change at a time, and write down what you did. This
will help you understand how each change affects how the bike rides.
4. Maintenance
After Every 8 hours of Riding
• Clean the shock with warm water, mild soap and a soft, small brush.
CAUTION: Do not use a high-pressure hose or washer to clean the shock or any part of your
bike. The high pressure can displace lubricants and force moisture where it can damage
components.
• Clean the air valve.
• Use a torque wrench to check the torque on the mounting bolts. It should be 60 in-lbs(6.8 N.m).
CAUTION: Over-torqueing the bolts can cause the suspension to bind and malfunction.
Under-torqueing can cause damage to the frame and shock.
After every 20 hours of riding
• Remove, clean, and lightly grease the mounting hardware, using a good quality bicycle grease.
• Reassemble and use a torque wrench to torque the bolts to 60 in-lbs (6.8 N.m)
CAUTION: Over-torqueing the bolts can cause the suspension to bind and malfunction.
Under-torqueing can cause damage to the frame and shock.