The new Slacker V4 with Bluetooth® is the ultimate suspension tool for your street, adventure or off-road bikes. Building off the proven record of the Slacker V3, the V4 is so much more than a sag scale that we are re-branding it as the Slacker Digital Suspension Tuner in recognition of all it's new capabilities.


The new Slacker V4 Digital Suspension Tuner with Bluetooth® takes suspension tuning to a whole new level. Now you can use your Apple® or Android® device as a virtual remote display and save settings directly to your profile in our free Service Assistant App. You can also add a dedicated wireless remote display if you want to keep it simple. The V4 builds on the first 3 generations of Slackers and brings all the reliability and and precision you have come to expect.


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