21 and 21A Series IMCA Legal

MONO TUBE STEEL BODY GAS SHOCK

-New for 2007, 21A Series

Starting in 2007, IMCA  requires that you run the 21A series shock to be legal.

The 21A series shock has a modified hyper screw, which will not allow you to change the gas pressure in the shock.

 

- Racer Revalveable & Rebuildable

You the racer can rebuild, revalve, and repair these shocks with a few simple tools and about 15 minutes of your time!

 

- Fade Free

Engineered for consistency and unbeatable performance

 

- 2-Piece Body Design

Replacement sleeve allows for quick and inexpensive repair of damages bodies.

 

- Ring Shim Technology

Allows for easy and precise preload adjustment of valve stack.

 

- Optional Schrader Valve

Schrader valve  allows for quick adjustments to gas pressure for varying track conditions

 

- Deflective Disc Valving

Increased sensitivity in valving responses,  control and consistency.

 

- 100% Dyno Tested and Serialized

All shocks have a serial number and are dyno tested.

 

- Replaceable Rod Bearing

Replaceable rod bearings come standard on piston rod end.

 

- Can Be Run Upside Down

Can be run upside down with no change in rate to further reduce un-sprung weight.

 

- 46mm Piston

Digressive curve allows for complete control of suspension at low shaft speeds without creating extreme forces at high shaft velocities.

 

Available Options:

- Base Valve.:  Allows for extremely low rod force while maintaining complete compression control over full velocity range.  Pricing coming soon!

 

- Linear Valving

 

Specifications:

Body Diameter : 2" O. D. Steel

Spherical Bearings : 1/2" I.D.

Shaft : 15mm Centerless Ground, Hard Chrome Plated

 

Stroke Availability:   7", 9"

 

 

 

 

 

 

 

 

 

 

 

 

PRICING

$125 ea.

 

SERVICES/REPAIRS
Dyno Testing : Free/New!
Rebuild : $35
Shaft Repair : $50
Re-Valve w/rebuild : $35

ACCESSORIES

I.M.C.A. 5" Coil Over Kit: $85
Tuning Kit :: $145
Nitrogen Charging Tool: $110
Portable Nitrogen

$285

tank w/ Regulator

 

1 QT Shock Oil: $10
 

 

 
 

The 21 Series is QA1's new steel body monotube gas shock.  This new shock is perfect for spec classes that either have a price rule or a "air-port" rule like I.M.C.A  This shock is legal for I.M.C.A. but is racer revalveable and repairable.  No need to throw these shocks out when you get into a wreck!  Simply send them back to us to have them repaired or tuned to your specifics.  Purchase a tuning kit and you can maintain these units yourself!

Standard units have very low rod pressure but you can also install a universal base valve to lower the rod pressure to practically 0!  You will simply will not find a better performing shock with a similar price tag especially one that is not a throw away!

 
20 Industrial Ave

 

Wellington, Ks 67152
Phone: (620) 326-3152 Fax: (620) 326-5789