4-Way Small Tire Tuning Guide

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This tuning guide is intended for use with Reaper Suspension’s 4-Way shock for a 275 or 315 radial tire application.

4-Way Adjustment Basics

  • All adjustments should be made from full tight (fully clockwise) on both high speed (HSC) and low speed (LSC) compression and high speed (HSR) and low speed (LSR) rebound/extension.
  • Both the HSC and LSC adjusters will be located on the compression head near the canister, while the HSR adjustments will be located on the rod guide and the LSR adjuster will be located on the shaft. This is true no matter the orientation of your shock.
  • Make shock adjustments in small increments (two or three clicks) per pass.
  • HSC, LSC, and HSR use a 9/64” Allen key. NOTE: Once the adjuster stops, there is no more adjustment available—do not force the adjuster to turn, as you will damage the shock.

Baseline Settings (Starting/Reset Point)

  • High Speed Compression (HSC): 5 clicks from full tight
  • Low Speed Compression (LSC): 6 clicks from full tight
  • High Speed Rebound (HSR): 8 clicks from full tight
  • Low Speed Rebound (LSR): 12 clicks from full tight

Track Condition Recommended Adjustments

Track Condition HSC LSC HSR LSR
Good / Excellent Track 5HSC 6LSC 6–7HSR 8–9LSR
Hot / Greasy Track 3HSC 4–5LSC 10HSR 10–11LSR

Disclaimer

Due to the extreme conditions under which Reaper Suspension components are used, we make no warranties—express or implied—including but not limited to warranties of merchantability or fitness for a particular purpose.

Reaper Suspension components are engineered for high-performance, off-road, and competition use only. All products are guaranteed to be free of defects in materials and workmanship prior to installation. It is the responsibility of the installer to verify proper fitment, compatibility, and function before performing any modifications or machining.

Any alterations, disassembly, or unauthorized modifications void all guarantees and release Reaper Suspension from any liability for damages, direct or consequential.

For best results, installation and tuning should be performed by qualified professionals with experience in high-performance suspension systems.

Contact Information

Reaper Suspension, LLC
4008 Camden Rd
Fayetteville, NC 28306
Phone: (910) 273-5153
Email: Sales@Reaper-suspension.com
Website: www.reaper-suspension.com