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

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Availability: Only 10 left in stock, order soon!
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Arrives Sep 2 – Sep 3
Order within 20 hours and 11 minutes
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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

If you place your order now, the estimated arrival date for this product is: Sep 2 – Sep 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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