Motorcycle Chassis and Suspension Specialists
          MOTORCYCLE DYNAMICS RIDER MATCHED
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OFFROAD  solutions FORK  equipment SHOCK  equipment FORK  services/mods SHOCK  services/mods
                 
                 
   
     
                 
             
                 
               
    front fork  equipment, products and parts   ^  
                 
               
    Showa Fork Units    

front fork units

Modifications to existing units, restore old to new or high quality replacement units.
     
                 
    Forks    

front fork units

Modifications to existing units, restore old to new or high quality replacement units.
     
               
    Front Fork Tubes    

fork tubes

Hardchrome or Gold-Nitride to existing fork tubes
High quality replacement fork tubes
     
               
    Steering Dampers    

steering dampers

steering enhancements from leading manufacturers including all fixtures and fittings. 
     
               
    PMA VP3/VP4
 
   

VP3 VP4 fork cartridge valves

ProMechA are pleased to release a new series of valves for both fork and shock. Designed in-house, our new system offers the greatest scope for tuning ever. Pictured are our 20mm kits - unique, due to the ability to modify port dimensions to suit the application; allowing a broad range of motorcycle types and riding styles to be accommodated and giving far greater scope for tuning.
  Australian made  
               
       

provalve damping control kit

ProMechA have developed the PROVALVE for conventional forks which offers a full 3 way lo/mid and high speed compression damping with an in-built hydraulic anti-dive circuit. With its integral dive control unit and shimstack adjustable damping control, the Provalve will give your conventional fork set the performance of a cartridge unit.
  Australian made  
                 
        The ability to fine-tune suspension is increased enormously allowing for a rider-specific set-up based on weight, riding style and application over and above any standard suspension. Because of the multi-stage shimstack configuration, we can separately control dive rate, lo/mid and hi-speed compression damping.  Removing the fork cap and spring allows removal of the Provalve which then can easily be adjusted.      
                 
        When fitted with the correct spring and rebound modifications, your conventional fork set will be more than a challenge for the very best production motorcycle.
Promecha Provalves are an Aussie product. The kit comes with an assortment of different size shims and instructions. Easy to deal with, made from billet aluminium and makes a huge difference in handling
     
                 
             
               
    rear shock  equipment, products and parts   ^  
               
    Shock Unit    

rear shock units

We supply aftermarket shocks from all leading manufacturers and customised shocks built to order at varying cost (dependent on brand and design features).

Your purchase choice will depend upon the level of performance you want to gain from modifying your suspension.
     
                 
    Shock Units    

rear shock units

modifications to existing units. For the rear shock, a new spring and a revalve will take a lot of the harsh feel out of the shock, and will improve plushness and help control squat. These mods will give you a superior shock when compared to the standard unit.

The aftermarket shock will have an advantage, mostly in the way the adjusters work, the piston design and the slippery surface finishes.
     
               
    Shock Rebuild    

custom shocks built to order

We can restore old shocks to new or build new shocks customised to your requirements and application. 
  Australian made  
               
    PMA VP3/VP4
x
   

VP3 VP4 shock valves

ProMechA are pleased to release a new series of valves for both fork and shock. Designed in-house, our new system offers the greatest scope for tuning ever. Pictured are our 20mm kits - unique, due to the ability to modify port dimensions to suit the application; allowing a broad range of motorcycle types and riding styles to be accommodated and giving far greater scope for tuning.
  Australian made  
               
    PMA Shock Pistons    

pma 40/46 shock piston

Modern dirtbikes have many compromises to shock design. With our exclusive piston design, we are able to maximise feel and control for all modern motocross and enduro bikes. We can tailor port dimensions to give just the right feel for any linkaged rear suspension design.
  Australian made  
               
       

squat control valves

Pictured is one of our three types of Shock Flow Valves providing increased corner exit stability and exceptional lo-speed rebound damping; controlling rear suspension on off throttle and cornering forces. 
  Australian made  
                 
             
               
    springs and parts   ^  
               
       

fork springs

Springs are the most important part of your suspension. Yet people give surprisingly little attention to matching spring rates to their weight and their riding style; see technical article Springs - the basics
     
               
    KTM
 
   

shock springs

It is important to match spring rates to your weight and riding style ensuring that front and rear rates are complementary, with damping to suit. We supply springs from all leading brands, which are universally manufactured to ISO standards. Contrary to the belief of some, springs do not 'wear out' - it is usually old and over-used damping oil that causes this sensation.
     
               
    Motorcycle Suspension Tools    

suspension tools


Shock Bleed Tool and pistons

shock bullet tools

Fork oil level tool

  Australian made  
           

 

 
    Fork parts    

fork parts

Fork Parts Front Fork Bushes Front Fork Seals etc.
Parts for all makes and models
     
               
    Shock parts    

shock parts

Shock Parts, shock bladders, gas caps, spring collars, spring seats, shock seal heads etc. Parts for all makes and models.
     
                 
    Shock Parts    

shock parts

Shock Parts, shock bladders, gas caps, spring collars, spring seats etc. Parts for all makes and models 
     
                 
    Shock Bladder    

shock parts

Shock Parts, shock bladders, gas caps, spring collars, spring seats etc. Parts for all makes and models 
     
           

 

 
    Seals    

seals

     
                 
    Bushes    

bushes

     
                 
    Stroke Marker    

Stroke marker

     
                 
          ProMechA   ^  
                 
                 
         
    front fork  modifications   ^  
        x
 

Showa Forks

 
    Below is a brief description of what's involved. Our quotes are fixed for forks and shocks which are off the bike. Any additional work that may be required will be quoted/advised.
 
   
       
   

fork service

Fully disassemble and clean all parts including shims, valves and adjusters. Refill oil to correct level. Worn seals, bushes, chrome plating are additional. See Maintenance Article for applicable service periods and Damping and Oils for the importance of oil and its usage in suspension performance.
 
   
       
   

fork revalve & service

Full Service as above. Revalved compression and rebound shimstacks to suit rider style, type of riding, rider feel, rider weight and load carried. Revalving the standard parts matches damping to springs; removing harshness and delivering good results with our individualised setup giving a big improvement over stock.
 
   
      Fork parts  
   

fork service twin chamber

As for Fork service (see above)
 
   
       
   

revalve and service twin chamber

As for Fork Revalve and Service above and we check chamber dimension and finish for wear as well as seals.
 
   
       
   

fork cylinder/mid valve remove/modify

Many forks have cylinder valves that interfere with compression damping, especially on big hits. Our modification corrects this. Mid-valves also play an important part in compression stroke. Rider preference as to feel and braking control/turn-in need to be tuned to suit the rider.
 
   
         
   

provalve damping control kit

reb. mod, service and set-up
Conventional damping systems (damper tube) have many shortcomings, excessive dive, harshness, very poor traction feel. All of these problems can be corrected with our exclusive shimstack driven Provalve high performance damping kit. Because of our multi-stage shimstack configuration, we can separately control dive rate, lo/mid and hi speed compression damping all in one easy to install kit. When fitted with the correct spring and rebound modifications as outlined in our instructions Your conventional fork set will be more than a challenge for the very best Motocross or Enduro bike. For exact fitment details and set-up costs please call. See Hold That Road and Serious Suspension for provalve conversion results.
 
  Provalve  
         
   

PMA VP3 conversion

20mm Compression valve and standard rebound mod. including dive control. All the benefits of a much better compression valve and modified rebound to suit the spring.
 
  PMA VP3 + VP4 Fork and Shock valves  
       
   

PMA VP4 conversion

20mm VP4 Compression and Rebound valves + service and set-up. For best results, our PMA VP3 and VP4 tunable port pistons give any rider/bike combination the feel and control for wide range damping precision due to the ability to modify port dimensions to suit the application; allowing a broad range of motorcycle types and riding styles to be accommodated and giving far greater scope for tuning.
 
   
         
   

fork lowering and service

Price includes full service as above. Lowering is done internally (front and rear) to maintain handling characteristics. How much a bike can be lowered before handling and safety become an issue is dependent on bike design and application. For info on your particular make and model call for advice on 03 9560 2770.

Note: The lowering process is reversible, should you wish to change it back in the future.
 
     
         
   

fork leg straightening (ea)  P.O.A.

 
     
         
   

rechrome fork legs (pr)

Hardchrome re-plating, grinding and polishing to correct tolerances.
 
  Front Fork Tubes  
       
   

gold-nitride existing fork tubes  P.O.A.

 
     
         
   

fork removal

Labour charge for removal and replacement of forks to bike where necessary
 
     
           
           
         
    rear shock  modifications   ^  
        x

Shock Unit

Shock parts

 
    Below is a brief description of what's involved. Our quotes are fixed for forks and shocks which are off the bike. Any additional work that may be required will be quoted/advised.
 
   
       
   

shock service

Dismantle and reassemble shock, check all components for wear or damage and replace and/or repair where necessary. Re-oil and re-gas. See Maintenance Article for applicable service periods and Damping and Oils for the importance of oil and its usage in suspension performance.
 
   
       
   

shock revalve and service

We dismantle and reassemble shock, checking all components for wear or damage and replace and repair parts where necessary. We then revalve according to rider application, riding style and weight.

Many shock settings are harsh with limited damping range. Not enough happens early in the bump cycle to slow and control the bikes progress over dirt surfaces. We modify your shock to build in smooth, plush feel and give you the ability to control your bike and improve confidence.
 

   
         
   

shock service non-rebuildable

Dismantle and reassemble shock, check all components for wear or damage and replace and/or repair where necessary. Re-oil and re-gas. We convert your shock to fully rebuildable.

Over the years we have not yet found a shock that we can't rebuild. Most modern shocks (let's say from late 80's) are able to be converted into a re-buildable and fully serviceable shock. Some require machining to have them opened and then we install clips and regas valve to complete the job.
 

  Revalving Shocks  
       
   

revalve and service non-rebuildable

Dismantle and reassemble shock, check all components for wear or damage and replace and/or repair where necessary. Revalve according to rider application, riding style and weight. Re-oil and re-gas.
 
   
       
   

PMA 40/46 shock conversion

Modern dirtbikes have many compromises to shock design. With our exclusive piston design, we are able to maximise feel and control for all modern motocross and enduro bikes. We can tailor port dimensions to give just the right feel for any linkaged rear suspension design. PMA Shock conversion includes revalve and service and set-up.
 
  Shock Flow Valve  
       
   

squat control valve

Increased stability by controlling rear suspension on off throttle and cornering forces.
 
   
         
         
      Shock Springs

 

 
   

twin shock service

Dismantle and reassemble shock, check all components for wear or damage and replace and/or repair where necessary. Re-oil
 
   
       
   

twin shock damping mods

We dismantle and reassemble shock, checking all components for wear or damage and replace and repair parts where necessary. We then revalve and modify the pistons according to rider application, riding style and weight.
 
   
       
   

shock lowering and service

Price includes full service as above. Lowering is done internally (front and rear) to maintain handling characteristics. How much a bike can be lowered before handling and safety become an issue is dependent on bike design and application. For info on your particular make and model call for advice on 03 9560 2770.

Note: The lowering process is reversible, should you wish to change it back in the future.
 

   
         
   

rechrome shock shaft

 
     
         
   

shock removal

Labour charge for removal and replacement of shock to bike where necessary