Sprindex Adjustable Coil Spring

You can set an air shock to any pressure you'd like, making them quite popular in mountain biking compared to coil shocks. You'll need a pump to make that adjustment though. With this new coil spring system from Sprindex, no tools are needed to adjust a coil's spring rate to a finer degree than ever before. Join Vital MTB tester and Trail Peek ripper, Zach Petersen, in the video above for a closer look at Sprindex and his ride impressions.

Fewer active coils make for a stiffer spring. Twisting the Sprindex dial varies the number of active coils.

Highlights

• XC/Trail, Enduro, and DH models in four spring rate range options each
• Includes spring, adjuster, and five performance adapters
• Glass-reinforced polymer adjuster with detents
• Highest-grade tensile steel spring
• 30 to 70 pounds per inch of adjustment, depending on the model and spring rate range
• Adapters allow Sprindex to fit all shocks and prevent coil binding
• Price: $140 USD

Available Sizes & Weights

XC/Trail: 55mm / 2.2-inch stroke, 126mm spring length
Spring rate range options: 380-430 lb/in, 430-500 lb/in, 490-560 lb/in, 550-610 lb/in
Weight: 325g - 395g

Enduro: 65mm / 2.6-inch stroke, 142mm spring length
Spring rate range options: 340-380 lb/in, 390-430 lb/in (tested), 450-500 lb/in, 500-550 lb/in
Weight: 390g - 464g

DH: 75mm / 3.0-inch stroke, 160mm spring length
Spring rate range options: 290-320 lb/in, 340-370 lb/in, 400-440 lb/in, 450-490 lb/in
Weight: 435g - 540g

What's The Bottom Line?

Overall, the Sprindex adjustable coil spring is awesome. We recommend it to any rider who uses coil suspension. It's going to allow you to find your perfect spring rate and reap all the benefits of a coil shock. If you like tuning and playing with bike setup, you're going to love this one. Its performance benefits come at a minimal weight penalty and a reasonable price.

Visit www.sprindex.com for more details.

Vital MTB Rating: 4.5 Stars - Outstanding

About The Reviewer

Zach Petersen - Age: 23 // Years Riding: 10 // Height: 5'9" (1.75m) // Weight: 145-pounds (65.8kg)

Zach cut his teeth figuring out how to ride on the unforgiving mining trails of Northern California. After watching Earthed 5, he decided to try out enduro racing and continues to seek out the most gravity-oriented events. When not racing he's smashing out big backcountry days in the Sierra Nevada, pushing dirt around the forest with a McLeod, and keeping the stoke high with Trail Peek.

Video by Trail Peek