Motion Pro 08-0336 User Manual

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Motion Pro, Inc.

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INSTRUCTIONS

Instructions for Motion Pro 08-0336 Folding Sag Scale

Thank you for choosing the Motion Pro Folding Sag Scale. The instructions below will show you how
to check both the static sag and rider sag of both the front and rear suspension on virtually
any motorcycle and provide basic guidelines for proper sag settings. Please refer to
your motorcycle’s service manual for specifications and recommending settings
for your particular model.

Knob

Guide Pin

Assembly

Unfold your Motion Pro Sag Scale and thread the knob into the guide pin through the slotted area.

Rear Suspension

1) Place the motorcycle on a stand that allows the rear suspension to fully extend. Insert the guide pin of the sag scale in the rear
axle hole (see image 1). Adjust the sag scale up or down in the slotted area until the zero point on the scale is in line with a
reference point on the chassis. The seat bolt, fender bolt, or a mark from a felt pen or section of tape on the fender make good
reference points (see image 2). This reference point represents your maximum travel.
Note: Be sure to use the same maximum travel reference point with each measurement taken.

2) Remove the bike from the stand and measure with the bike under its own weight (see image 3). This is static sag. Check your
service manual for static sag specifications, but your measurement should fall approximately between 25 and 35mm. If
adjustments are required to achieve the proper measurement, please refer to your service manual for instructions on adjusting
your spring preload.

3) To check rider sag, have someone hold the bike steady with the rider aboard in a normal riding position (feet on the pegs). Have
the rider bounce up and down on the suspension several times then allow it to settle to a resting position. Using your reference
mark you should now see a reading somewhere in the area of 90 to 100mm (see image 4). Check your service manual for rider
sag specifications. If adjustments are required to achieve the proper measurement, please refer to your service manual for
instructions on adjusting your spring preload.

If rider sag is less than 90mm with the correct static sag, your spring is probably too stiff for your riding weight. If rider sag is
more than 100mm with the correct static sag, your spring is probably too soft for your riding weight. Corrections should be
made, such as replacing your spring. Please refer to your service manual for recommended spring rates and servicing.

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Front Suspension

1) Place the bike back on a stand that allows the suspension to fully extend. Place the guide pin in or as close to the center of the front
axle as possible. Place a small piece of tape just below the triple clamp to use as your reference point and adjust the sag scale up
or down in the slotted area until the zero point on the scale is in line with a reference point (see image 5). This reference point
represents your maximum travel.
Note: Be sure to use the same maximum travel reference point with each measurement taken.

2) Remove the bike from the stand, lock the front brake and depress the front suspension several times then allow it to return to a
resting point (see image 6). The static sag should be 5 to 10% of the total travel (Example: 300mm travel = 15 to 30mm).

3) To check rider sag, have someone hold the bike steady with the rider aboard in a normal riding position (feet on the pegs). Lock the
front brake and depress the forks several times, then allow them to return to a settled position. Using the same reference point as
used for the static sag and with the rider still aboard in a normal riding position, check the measurement (see image 7).

Rider sag should be between 25 and 30% of the total fork travel (300mm of fork travel should have 75 to 90mm of rider sag).
Reference your service manual for specifications on fork travel for your motorcycle. If this measurement is in excess of 30% of
maximum travel and the static sag is in the correct range of 5 to 10% of maximum travel, a stiffer set of fork springs would be
advised. If the measurement is less than 25% of maximum travel, a softer set of springs would be recommended. Please refer
to your service manual for recommended spring rates and servicing.

For any additional information in regards to this tool or any other fine Motion Pro products, please visit our web-site at, MotionPro.com.

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Warning: Incorrect suspension settings can cause your motorcycle handle erratically and make it difficult to control. Loss of control
of your motorcycle may result in great bodily injury or death. If you are not confident in your ability to properly set your suspension
we strongly recommend that you have this work done by a professional mechanic.

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