Custom Axis Rear Shock

$1,300.00
+

Why Choose Custom Axis Racing Shocks

  • Purpose-built for the brutal demands of competitive ATV racing
  • Proven performance trusted by elite professional riders
  • Designed to maximize control, consistency, and durability under race conditions

Engineering & Construction

  • Designed and manufactured using advanced CAD/CAM technology
  • Fully machined construction — no cast or welded components
  • Shock bodies precision-machined from smooth-burnished ID steel tubing
  • Proprietary surface treatment for exceptional wear resistance and corrosion protection

Components & Materials

  • Aircraft-grade, Teflon-lined spherical bearings at all shock eyelets
  • Stainless steel mounting spacers for strength and longevity
  • Internal and external aluminum components machined from 7075-T6 billet and 6061-T6 tubing
  • Hard-anodized finish to increase durability and protect suspension fluid integrity

Damping & Adjustability

  • High-flow, low-turbulence piston design optimized for modern long-travel suspension systems
  • Engineered for high shaft speeds and aggressive riding conditions
  • High-speed compression and rebound adjusters for precise tuning
  • Stationary damping piston in the reservoir allows tuning without altering low-speed damping

Performance & Reliability

  • Heavy-duty 5/8-inch shock shafts designed to withstand extreme damping loads without fatigue
  • Custom Axis race proven suspension fluids for consistent, fade-resistant performance
  • Premium race springs, including Hyperco, for predictable handling and control

Experience & Expertise

  • Backed by over 20 years of ATV racing suspension development and real-world testing


Custom Axis, a division of Penske Racing Shocks, is dedicated to producing industry leading suspension systems for off road applications. Designed with tunability, performance, and long-term reliability in mind, Axis off-road shocks deliver precise handling and confidence-inspiring control in the most demanding conditions. Every set is built to order, tailored specifically to the rider’s weight, skill level, and riding style.

Serious riders understand that shock absorbers are the foundation of any winning suspension package. In fact, many riders, trainers, and mechanics agree they are the most critical component on a race vehicle. From the beginning, Custom Axis has focused on developing a line of racing shocks that define excellence in quality, durability, and performance. Axis shocks are engineered exclusively for the extreme demands of ATV and off-road racing, which is why top professional riders continue to trust Axis to compete at the highest levels.

All Custom Axis shocks are designed and manufactured using the finest materials available and the latest CAD/CAM technology. Axis does not use cast or welded components. Damper bodies are precision machined from special smooth burnish ID steel tubing and treated with a proprietary surface enhancement process that provides outstanding wear resistance and corrosion protection.

Shock eyelet pivots feature aircraft grade, Teflon lined spherical bearings with stainless steel mounting spacers to ensure strength, smooth articulation, and long service life. All aluminum internal and external components are CNC machined from 7075-T6 billet or 6061-T6 tubing and hard anodized for durability while preventing contamination of the suspension fluid.

Damping pistons are engineered with high flow, low turbulence port designs to accommodate the higher shaft speeds found in modern long travel suspensions. Compression and rebound adjusters are optimized for high speed shaft displacement and utilize a stationary damping piston within the reservoir, allowing precise tuning without compromising low-speed damping control.

Custom Axis shocks utilize robust 5/8-inch diameter shafts capable of handling significantly higher damping loads with reduced fatigue compared to many competing designs. Performance is further enhanced through Axis’s own race proven suspension fluids and premium race springs, including Hyperco.

To further tailor performance, Axis offers a wide range of internal valving options and upgrades. These allow us to achieve a plush, predictable cornering feel while maintaining the high damping levels necessary to resist bottoming on large bumps and jumps. Custom spring configurations are also available, including single, dual, and triple rate setups, ensuring the suspension matches both rider preference and terrain.

Beyond the product itself, Custom Axis is known for unmatched customer support. The same technicians who build the shocks are also active at track. Combined with a network of professional riders who continuously provide feedback, Axis is constantly refining setups to ensure customers receive the best possible performance for their application. With over twenty years of experience in off-road and ATV racing suspension, Custom Axis has the knowledge, craftsmanship, and race-proven results to meet the demands of the most serious riders.

Bought Axis Rear Shock w/ Compression & Rebound & Dual Springs and Set of Fox Floats. The Fox and Axis shocks are awesome! The ride is way better than stock and the adjustments are quick and easy on both.
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