Motool Slacker Digital Sag Scale

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Tested: Motool Slacker Digital Sag Scale

Rating: Vital Review

Article and Photos by Michael Lindsay

Before my time at Vital MX, I was lucky enough to spend quite a bit of time testing suspension and learning from one of the best in the business, Ross Maeda from KYB and Enzo. One of the most standout lessons was about how important correctly setting sag is. To put it bluntly, if your sag is incorrect it can not only affect how the bike handles, but it also affects the bike's balance and how the suspension reacts. As an example, if the shock's sag is too low, it will place more weight on the shock, thus causing it to be softer. This also takes weight off the front and would cause the forks to Read More »

Article and Photos by Michael Lindsay

Before my time at Vital MX, I was lucky enough to spend quite a bit of time testing suspension and learning from one of the best in the business, Ross Maeda from KYB and Enzo. One of the most standout lessons was about how important correctly setting sag is. To put it bluntly, if your sag is incorrect it can not only affect how the bike handles, but it also affects the bike's balance and how the suspension reacts. As an example, if the shock's sag is too low, it will place more weight on the shock, thus causing it to be softer. This also takes weight off the front and would cause the forks to feel stiffer. I could go on and on about how sag affects the whole bike, but that example should give you a quick idea of how much impact it has. Dealing with customers, I very quickly found that simply setting the proper sag adjustment would either cure or reduce most complaints. This is because the riders had either never set their sag, or hadn't checked it in a long period of time. That's a problem, as our weight is ever-changing. Most riders tend to never check it because it's too much of a hassle, and they need someone who understands how to measure it to help them out. This is where Motool's Slacker Digital Sag Scale comes in, which allows a rider to set their sag completely on their own!

Slacker Digital Sag Scale Features:

  • A magnet allows the scale to be attached to any steel surface.
  • Allows user to set their sag without assistance.
  • Can be used on any size motorcycle.
  • Remote display can be mounted to bars for rider to read while on the bike.
  • Can be used to set the shock or forks sag.
  • MSRP: $140.00

First Impressions

Inside the box from Motool, you'll find the four main things needed to use the Slacker; the digital scale box, mounting clamp, remote display, and a cord to connect the scale to the remote display. The larger box is your digital scale, which has a power/rest button, LCD display, measuring cable, and a large magnent on the rear. The smaller box is a remote display, which has its own LCD display and reset button. It however doesn't have space for batteries, so the cable included feeds it power and information from the scale.

The included instructions give you all the info you need to get started, but you will need two AAA batteries. I didn't discover this until I took it to the track and decided to use it the first time, then I realized my blunder. Call it a pet peeve, but I get really annoyed when an electronic device doesn't have batteries included.

At the Track

Using the Slacker out at the track is fairly simple, especially when it comes to setting the rear sag. With the bike on the stand, install the digital scale to the rear axle using the magnet. Next up, latch the mounting clamp to either the rear fender or sideplate, then pull the cable from the scale and hook it to the mounting clamp. Last thing is strapping the remote display to the handlebar, then hooking the scale and remote display together using the included cable.

Once it's ready, you simply press the power/reset button on either the remote or scale so it shows a 0. Remember to only hit the reset when the bike is on the stand and the suspension is fully extended to set it to zero. If it's done when the bike is on the ground, the weight of the bike will affect the outcome of the results, as the number displayed would be starting from the static sag. Once the Slacker is zeroed out, pull the bike off the stand, climb aboard and see the results. I found that my best results happened when I placed one foot on a stand with my other on the pegs, with the goal of keeping as much of my weight as possible on the bike. Keep in mind that it's near impossible to get all your weight on the bike consistently enough for an exact readout. As an example, I looked at 102mm as if it was actually 103-104mm, once I accounted for my foot resting against the stand.

All-in-all, the product is easy to use and seems to be very accurate. I've tested the Slacker's results against the old-fashioned tape measure multiple times, and I found it to be spot on if I repeated the method with both measurements (one foot resting against the stand). Another plus with this product is how easy it is to also check your fork preload, which has become more important with SFF and SFF Air forks, since they have adjustable preload. In this case, the scale is attached to the front axle, with the clamp latched to the front number plate.

Once you've set it up, it's pretty easy to repeat the process in a couple of minutes, but I do have two small digs against the product. One is the lack of batteries. My other is that the scale will only measure up to 200mm, after 200mm it goes blank. For most this doesn't matter, but I'm unable to measure the full extended length on the stand. I would like the ability to zero out the scale before attaching the cable to the clamp, thus showing me the extended length number before climbing aboard the bike.

Long-Term Durability

As with most tools, the durability depends on how well you treat it. Being that the Slacker has digital screens, it would be best if it was kept in its original box. The scale and remote display both are encased in fairly thick plastic casings, which will hold up to some decent abuse. My personal durability test included accidentally smashing the scale into the stand when I almost fell over, and kicking it out of the van while looking for some goggles. (whoops)

The Last Word

Based on my intro, you probably figured out that I really believe the necessity of checking your sag to maintain a consistent setup. Because of this, I found this product to be extremely important, as it eliminates the main excuse that riders have when it comes to checking their sag, "I need help." Its price definitely reflects that of a specialty tool, but considering we spend upwards of $500 to have our suspension set up for us, it's well worth the price to keep this investment in check. If you're lucky enough to always have someone around that understands how to set sag, then this isn't a necessary tool. But if you're lacking the help or like to keep track of the numbers for yourself, then the Slacker could find a home in your tool box.

Vital MX Rating

Check out Motool.co to order one for yourself.

About the Test Rider:

Michael Lindsay- is a born-and-raised moto freak and gearhead from the heart of motocross in Southern California. First swinging a leg over a bike at the age of five, he immediately caught the racing bug, spending nearly every weekend behind a gate…and a lot of time on the couch while injured. While swinging back and forth between moto and the off-road scene, giving him a wide range of experience on the bike. Of course, all of this led to one thing: Lindsay loves working on his bikes almost as much as he loves talking about them. When he’s not in the Vital MX forum or writing his latest product review, you can find him out at the track taking dirt naps, snapping some pictures, or drooling over the latest parts for his bike. With an outspoken personality, gearhead background, and as Vital MX’s guru for product, Michael is here to share his unbiased opinion.

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Vital MX member ML512
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Specifications

Product Motool Slacker Digital Sag Scale
Type
Features Universal Mounting: The Slacker scale works on both front and rear axles and is excellent for setting up both air forks and SFF forks. The clamp attaches to number plates or fenders offering great flexibility. Slacker even sticks to your toolbox for easy access!

Backlit LCD Display: An LCD display on both the main unit and the remote display allow you or a helper to quickly get the sag measurements you need. Backlit for night racing and poor lighting conditions.

Any Bike, Any Time: The Slacker digital sag scale works with any off-road bike 85cc or above with steel axles. This, along with the universal clip, ensures the Slacker scale works on almost every dirt bike.
Construction
Miscellaneous
Price $140
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