Super Alloy Racing Springs

• Find your spring rate using the NSDynamics spring calculator ‘ here’
• Find out Which POM Spacer Kit You Need

Lightweight, accurate, and built to perform.
SAR springs are the lightest MTB coil springs available — even compared to most titanium options. Designed by Dave Garland and manufactured by Eibach in Germany, they’re made from silicone chrome vanadium steel with a black KTL coating for long-term durability.

Key Features

• 25 lb Rate Increments
  Easier to dial in correct sag for better pedalling, grip, geometry, and consistent suspension performance.

• Dyno Tested for Accuracy
  Each spring is tested and certified to within 1.5–3% of its stated rate. Each spring is packed with its own dyno graph.

• Ultra Lightweight
  Compact design makes them lighter than most lightweight springs, while still maintaining required stroke.

• Improved Suspension Feel
  Boosts traction, small-bump sensitivity, and damping response — with less weight.

Spring Sizing

• Enduro springs: For shocks up to 65mm stroke
  Total length: 105–115mm depending on rate (excluding POM spacers)

• DH springs: For shocks over 65mm stroke (fits most 230mm eye-to-eye enduro shocks)

POM Spacer System

Shorter spring length allows use of SAR's CNC-machined POM spacers to fit nearly any shock brand.
They also help reduce spring bind and improve small-bump compliance.
Spacers sold separately.

Fits shocks from:

• Imperial: 200x57mm to 241x76mm

• Metric: 210x55mm (185x55mm trunnion) to 250x75mm (225x75mm trunnion)
  Compatible with: Fox, Rockshox, Marzocchi, Öhlins, Cane Creek, DVO, EXT, Suntour, PUSH and more.

Which POM Spacer Kit Do I Need?

Individual POM Spacer Codes

EXT Shocks:

• Use POM001 for 65mm Enduro springs

• DH (140mm) springs don’t require spacers

Important Note – SDLXC C1 with Bearing Eyelets

POM002SD & POM003SD won’t fit 2023+ SDLXC C1 shocks with one-piece 8x30mm bearing eyelets (e.g. OEM shocks for Santa Cruz/Nukeproof).
For these, use a DH 65mm+ spring (no spacer needed).

Spring Weights & Free Lengths

Available Spring Rates

Enduro Springs:
350 | 375 | 400 | 425 | 450 | 475
500 | 550 | 600 | 650 | 700 (50 lb increments from 500 lb and up)

DH Springs:
250 | 275 | 300 | 325 | 350 | 375 | 400 | 425 | 450 | 475
500 | 550 | 600 | 650 | 700 (50 lb increments from 500 lb and up)

* If you are unsure about spring size or spring rates please see out Tech Support page ‘here’

* While we can assist with spring choice, NSDynamics does not have detailed specifications from all frame manufacturers and is not responsible for final choice of spring size/stroke, and cannot guarantee returns/refunds on any used or accidentally purchased items

* Springs may not be purchased for 'testing purposes' and returned in exchange for an alternative spring if found to be unsuited to the riders weight. Final spring choice is the sole responsibility of the purchaser and returns/exchanges of this nature may not be accepted.