Patented real-time sag measurement system: Enables instant, accurate suspension tuning without external tools or assistance
Digital suspension tuner (Slacker V5): Allows precise adjustments to sag and ride quality directly on handlebars or smartphone
Easy, tool-free installation: Mounts securely to any mountain bike or motorcycle in seconds
Includes virtual fender mount, smartphone bar mount, and app: Provides all necessary components for immediate setup
No batteries required for measurement: Measurement data is streamed wirelessly to device for uninterrupted use
Summarized by Shop
Mountain Bike Starter 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
Compatible Bike Types
Mountain, dirt, street, adventure, and motocross bikes
Battery Size
AAA (not included)
Battery Type
Standalone (not-included)
Color
Yellow, Black, White
Pattern
Solid
Includes
Slacker V5 digital suspension tuner, virtual fender mount, smartphone bar mount, Slacker virtual remote, smartphone app
Summarized by Shop
4.2
5 ratings
5
4
3
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1
Broke on first Use
I bought this so I can fully dial in my two bikes. After months of no riding because of the harsh winter we had here in the northeast and suffering a really bad crash that left my wrist fractured, and broken ribs, I was excited to try it out. While I was hand tightening the virtual fender to the bike the little flimsy bolt that holds it cracked now I am left with an expensive paperweight. Really disappointed.
E
Eddie · July 19, 2026
Slacker MTB fender kit
Ease of use for the Slacker and MTB fender kit Great customer service, thanks Jo
K
Karen · May 3, 2026
Recommended Accessory
With this kit, I have finally been able to dial in my suspension consistently. In fact , it's the best my bike has felt since I've owned it. I've tried rulers, calipers ,etc. None compare as far as ease of use and accuracy.
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