Reactive Suspension, Motorcycle Suspension Specialists

Off Road Suspension Servicing and Upgrades Maximising Rider Confidence and Machine Performance

Through continuous testing, customer feedback and working with companies such as WP Suspension, KYB and JRi we've established a vast range of suspension solutions for Motocross, Enduro and ATV riders. We offer everything from servicing, spring upgrades and personalised valving through to full works components.

For the ultimate in MX suspension performance we can supply the JRi MX shock as used by James Stewart  in the JGR MX team, the WP Trax shock with its innovative rebound system and the WP MXMA Cone Valve Motocross Fork.

Fork & Shock ServicingFork & Shock Servicing

Off road suspension units are subject to a severe amount of punishment and torture, over ten laps the suspension can cycle up and down over 160,000 times and with fork velocities in the region of 8m/s in a harsh environment of sand grit and mud, they really take a lot of abuse.

Forks can flex around 70mm during hard use putting a massive strain on the bushes. Keeping your forks and shock regularly serviced (after every 20 hours use) not only prolongs the life of the components it maintains the performance and consistency of the forks and shock, waiting till something goes wrong to have the parts looked at can end up being very expensive.

Fork & Shock SpringsFork & Shock Springs

The starting point in upgrading any off road suspension is ensuring the spring rates match your weight, riding style and the terrain you are riding on. The correct spring rates at both ends maximise the available amount of travel and help maintain the geometry of the bike.

A High Performance Spring has a high stiffness to mass ratio, in other words it is as light as possible for a particular rate. Manufactured from chrome silicon steel, shot peened, heat-treated and pre-set for length, they are the finest springs available. We test all our springs before despatch or fitting to ensure they are the exact rate you require.

Fork & Shock RevalveFork & Shock Revalve

A fork and shock revalve customises the damping of the bike to suit your ability, riding style and the terrain your riding on. Motocross, Supercross, Enduro and Supermoto all have different damping requirements as do different terrains such as sand, hard pack and rocks.

The aim is to eliminate any harshness through the suspension, giving a more consistent damping action through the stroke resulting in a more balanced feel and good bottoming resistance. The improvement in ride quality will increase grip improve cornering and jumping with better stability and reduced rider fatigue.

Telescopic Needle for WP PDS ShocksTelescopic Needle for WP PDS Shocks

The biggest problem with WP PDS shocks is that they lack progression, they are either too stiff on the small bumps or they bottom out on the big ones. The telescopic needle has an innovative design that is much longer than stock, gradually tapered, and collapsible.

This gives a much smoother more progressive stroke allowing the bike to track over the bumps more precisely and prevents the shock bottoming. We have also found that the shock rides higher in the stroke improving the steering of the bike.

WP 4054 ForksWP 4054 Forks

For riders restoring 80's motocross bikes or racing in the EVO class we have spare parts and new 4054 multi adjuster forks available, please contact us for details.


Our Services Page has a full range of performance coatings to restore or customise your suspension.

JRi MX ShockJRi MX Shock

The JRi MX shock is custom designed to meet the incredibly demanding requirements of the supercross and motocross arenas. JRi spent a long time developing and testing the MX shock working with teams such as the Joe Gibbs Racing MX Team.

The information gained enabled JRi to offer a superior shock and join JGR/MX in their 2010 X-Games victory. The MX shock offers superior response time and control with JRi’s proprietary low friction bearing design and unique piston configuration.

MX Tech Low Friction Piston Ring MX Tech Low Friction Piston Ring

An extremely low friction high quality replacement piston ring to fit 50mm KYB, Showa and WP shocks.

Stock piston bands particularly on Showa shocks have a massive amount of stiction, this low friction piston ring allows the shock to react far faster giving increased wheel control and improved grip.

SKF Fork SealsSKF Fork Seals

SKF fork and dust seals are the lowest friction seals on the market, previously we have always used OEM NOK seals with what we thought was very low stiction results, however when we tried the SKF seals there was a noticeable reduction in stiction.

Initially dubious that a company known for it's heavy engineering products could produce something superior for the motorcycle market, these are the real deal, testing them in the most arduous of conditions they have also proven to be more durable than OEM seals.

JRi Pro Racing PartsJRi Pro Racing Parts

JRi have developed a line of Pro Racing components and accessories to improve the performance and appearance of stock MX shocks. The parts are machined from aircraft quality materials machined to the finest of tolerances. The JRi parts are hard anodised to ensure the components stand the test of time and continue to perform at the highest level.

  • The JRi preload adjuster with internal bearing allows for ease of movement and helps eliminate spring binding for a smoother action.
  • The replacement clevis offers finer adjustment, and more durability.
  • The extended nitrogen chambers help to reduce shock fade giving a more consistent performance.

Fork and Shock Spare PartsFork and Shock Spare Parts

We carry a full range of spare parts to keep your WP, Ohlins, KYB, Showa, Marzocchi or Reiger forks and shock working at their optimum performance level from service parts such as seals and bushes to shafts and bodies.

We carry spare parts for Custom Axis ATV shocks.

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