Take the Guesswork Out of MTB Suspension Setup
Getting your mountain bike suspension dialed in just got a whole lot easier—and way more precise. Introducing the Slacker Virtual Fender Mount, the newest addition to the Slacker Digital Sag Scale system. This innovative tool lets riders take true, axle-based 1:1 sag measurements for both shocks and forks—providing fast, precise setup with zero assistance required.
Why Rear Shock Measurements Fall Short
Most riders measure sag at the shock body, assuming a linear relationship between shock movement and wheel travel. But modern MTB suspension designs are anything but linear with all the different linkages available. As a result, your sag reading at the shock can be off by as much as 3 to 4%, meaning what looks like 25% sag could actually be anywhere from 21% to 29% at the wheel. That's a huge discrepancy and will definitely impact your suspension performance and handling.
Real-Time, Axle-Based Sag Readings
The Slacker Virtual Fender Mount provides a direct attachment point above the rear axle, letting you use the Slacker’s retractable cable for true 1:1 sag readings across your entire suspension travel. Real-time measurements are displayed right on your handlebars—either on the wireless remote or your smartphone—so you can fine-tune your setup on the trail or in the garage.
No more cheap o-rings. No more trial-and-error. Just precise measurements in percentage of sag, millimeters, so you know exactly how your bike is set up—every single ride.
How to Use the Slacker Virtual Fender Mount
Setup is simple:
- Assemble the virtual fender rods and attach them to the clamp using the swivel mount.
- Clamp it onto your lower seat post.
- Adjust the sliding loop to sit directly above your rear axle.
- Insert the included axle insert into the axle’s hex drive.
- Connect the Slacker Digital Sag Scale—and you’re ready to dial in your suspension like a pro.
Built for Riders, Backed by Confidence
The Slacker system is a patented suspension tuning tool trusted by riders around the world—from pro racers to weekend warriors. And now, with the Virtual Fender Mount, mountain bikers can finally enjoy the same precision as motorcycle riders have for years.
30-Day Money Back Guarantee: Not satisfied? Send it back—no questions asked.
🔧 Note: Requires the Slacker Digital Sag Scale, sold separately.
