Slacker Virtual Fender Mount for Precise, Real-time, 1:1 Sag Measurements on MTB.








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Features
- THE ONLY CHOICE: Measuring 1:1 movement of the rear axle is the only way to accurately measure sag on MTB due to the linkage and leverage ratios.
- SEE THE EXACT SAG: See the percentage of sag in real-time on the Wireless Remote, or on your smartphone.
- QUICKLY DETECT ISSUES: Quickly check fork, shock, and linkage stiction to confirm your suspension's health.
- UNIVERSAL MOUNTING: Quickly and easily mounts to any mountain bike allowing the rider to precisely set sag on the forks and rear suspension with no assistance required.
Description
The Slacker Virtual Fender Mount provides the perfect attachment point directly above the rear axle to hook Slacker's retractable cable on. This lets MTB riders take 1:1 sag measurements across the entire suspension travel using a Slacker Digital Sag Scale. Ditch the cheap o-ring or ruler and see precise, real-time measurements, in millimeters, or the percentage of sag, right on the handlebars. Traditional shock measurements at the shock body can be off by up to 3% to 4% due to non-linear linkage and leverage ratios—so what looks like 25% sag could actually be anywhere from 21% to 29%, leading to inaccurate and inconsistent adjustments. The Slacker Virtual Fender Mount solves this by providing precise, real-time 1:1 sag measurements right at the axle, displayed instantly on your remote or smartphone—revolutionizing MTB suspension tuning. Directions For Use: Assemble the virtual fender rods and connect them to the clamp using the swivel mount. Clamp the virtual fender on the lower seat post and adjust so the sliding loop sits directly above the rear axle. Place the axle insert into the hex drive of the axle and you are ready to mount Slacker. If you are not satisfied with your purchase, you can return it for a full refund. Requires a Slacker Slacker Digital Sag Scale- Sold Separately.
Item Package Dimensions L x W x H: 6.5 x 6.25 x 1.25 inches
Package Weight: 11.5 Ounces
Item Weight: 11.5 Ounces
Brand Name: Motool
Warranty Description: 1-Year warranty for manufacturing defects.
Model Name: Slacker Virtual Fender Mount
Color: Yellow
Material: Plastic
Suggested Users: Suspension Setup
Manufacturer: Slacker
Included Components: 5mm, 6mm, and 8mm hex key axle inserts., Adjustable swivel., Seat post clamp., Slaiding loop for retractable cable., Virtual fender rod assembly.
Size: Regular
Date First Available: June 8, 2025
Frequently asked questions
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