Motool Slacker Digital Sag Scale - PRODUCT EVALUATION

Sag setting made simple

Motool Slacker Digital Sag Scale attached to handlebars
Motool Slacker Digital Sag Scale.Courtesy of Motool

Proper suspension setup begins with measuring front and rear static sag. Following adjustment of fork and shock-spring preload that may be required to get static sag within the desired range, you would then proceed with dialing in your bike’s external damping adjusters if available.

The task of measuring sag has traditionally required the assistance of an extra set of hands to record measurements with a measuring tape while a fully suited rider assumes the feet-up riding position in the saddle. Parking adjacent to a wall allows the rider to balance the loaded bike with an elbow, thus eliminating the need for an additional assistant to steady the bike.

The Motool Slacker Digital Sag Scale allows one to work entirely alone in achieving accurate static sag measurement. A strong magnet on the back of the scale secures the unit to a bike’s front or rear axle. An included universal mount clamp (intended for off-road bikes) is used to attach the unit’s retracting measurement cable to the bike’s front or rear number plate directly above the associated axle.

An accessory Slacker Street Kit ($24.99) made cable attachment on our Suzuki GSX-S1000 test mule a snap. The kit’s fork adapter cinched to the upper tube via a Velcro strap, and one of the eight included self-adhesive plastic hook attachments now remains on the bike’s tailsection for future use.

Motool Slacker Digital Sag Scale attached to fork
Motool Slacker Digital Sag Scale.Courtesy of Motool

In practice, the Slacker proved quick and easy to use and does exactly what it’s designed to do. Our unit’s new Auto-Zero feature (enabled with a button press) eases the act of establishing a fully topped-out zero reading before sag is measured, and the included remote LCD display made working from the saddle simple.

So how much static sag should you shoot for? Depends on who you talk to, but Motool suggests a range of 35 to 45mm front and 25 to 35mm rear for sportbikes and streetbikes. When tweaking your bike’s suspension, logic suggests taking plenty of notes and comparative test rides in the quest for a best personal setup.
Price: $149.99

* Save friends for the greasy stuff
* Great trackside tool
* Backlit LCD display

* Costs much more than a tape measure
* Might motivate
* $uspension upgrade