Patented digital sag measurement system: Provides precise, real-time 1:1 sag readings for optimal suspension tuning
Easy handlebar-mounted operation: Allows instant adjustments and readings without the need for external devices
App integration: Wireless remote or smartphone app enables real-time monitoring and control
Durable construction: Includes rugged ballistic nylon case for long-lasting use
Universal compatibility: Works on dirt bikes, street bikes, adventure bikes, and mountain bikes
Summarized by Shop
Mountain Bike Pro Suspension Tuning Kit Works on mountain bikes and motorcycles.
When your suspension is dialed, everything becomes effortless. Slacker gives you instant, accurate sag percentages right on the handlebars so you can tune your bike to perfection every ride. No helpers, no guesswork, no more wasted riding days.
Slacker is a p
Included components
Slacker V5 digital suspension tuner, ballistic nylon case, virtual fender mount, smartphone bar mount, virtual remote, smartphone app
Measurement type
1:1 sag (sag at axle, not shock body)
Mounting
Virtual fender mount for direct axle attachment
Compatibility
Dirt bikes, street bikes, adventure bikes, mountain bikes
Color
Yellow, Black, Silver
Pattern
Solid, Logo, Text
Summarized by Shop
4.7
13 ratings
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Not essential, but nice!
Is this essential equipment for home use? No, but it does make life easier the trying to measure sag with a ruler or caliper. For a shop, however, I see this essential. I’ve used this on my families bike. I’ve also been using it to help our local NICA team set up their suspension. My only grip is that the magnets for the rear axle do not fit well in some axles. This isn’t a big deal, as you can just use strap attachment.
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Brandon · 10 days ago
Great tool for tuning MTB suspension
High quality kit with everything you need to accurately set the sag on the front and rear shocks. I was surprised at how far off it was using weight formulas to estimate shock pressure to set sag. After setting the correct sag with the slacker, my bike rides so much better—more active on climbs and plush on the descents!
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Greg · July 27, 2026
Makes Setting Suspension Straightforward & Consistent
The Slacker made it easy to measure the sag on my mountain bike. It allows me to take consistent measurements over time and make adjustments as necessary. I found the sag on my rear suspension was way too much.