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$269.99
QA1 28A Series Steel Pressurized Gas Monotube Shock, IMCA Approved
QA1 28A Series Steel Pressurized Gas Monotube Shock, IMCA Approved

QA1 28A Series Steel Pressurized Gas Monotube Shock, IMCA Approved

Dirt Late Model, Modified, Pavement Late Model, Pony Stock, Sprint Car, Stock Car, Zinc Plated

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QA1 28A Series Steel Pressurized Gas Monotube Shock, IMCA Approved
QA1 28A Series Steel Pressurized Gas Monotube Shock, IMCA Approved
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Part # 72128A
$269.99
each
Quantity:
Stroke
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Shock Type:
Mono Tube
Shock Body Material:
Steel
Shock Body Size:
Large Body
Shock Body Type:
Smooth
Shock Stroke Range:
Select Stroke/Compression/Rebound to see
Shock Stroke:
Select Stroke/Compression/Rebound to see
Mount Position:
Body-Up
Upper Shock Mount:
1/2" Spherical Rod End
Lower Shock Mount:
1/2" Spherical Rod End
Extended Length:
Select Stroke/Compression/Rebound to see
Compressed Length:
Select Stroke/Compression/Rebound to see
Extended Length Range:
Select Stroke/Compression/Rebound to see
Compressed Length Range:
Select Stroke/Compression/Rebound to see
Compression Valving:
Select Stroke/Compression/Rebound to see
Rebound Valving:
Select Stroke/Compression/Rebound to see
Schrader Valve:
No
Finish:
Zinc Plated
Coil-Over Compatible:
Yes
External Canister:
No
Body Diameter:
2.00"
Valve Positions:
Select Stroke/Compression/Rebound to see
Bushing Material:
Steel
Bushing Diameter:
2"
MFG. Part #:
Select Stroke/Compression/Rebound to see
Sold in Quantity:
Each
Notes:
MADE TO ORDER
Inside Diameter:
46 mm
Bulb Diameter:
2.75"
Shock Eyelet Width:
.625"
Bolt Hole Circle:
.500"
Hardware Included:
No
Gas Charged:
Yes

Info

These Circle Track Expanded Gas Chamber Shocks are what you need to succeed.  QA1’s 28A Series shock is the same as the 28 Series, but with the gas pressure tuneability feature disabled per IMCA regulations.

Sealed Hyperscrew
The 28A Series shocks feature a sealed hyperscrew. The gas pressure of these shocks is only adjustable by QA1 and QA1 Authorized Rebuilders per sanctioning body, like IMCA, and track rules.

Electroless Nickel Plated Body
The 28A Series is electroless nickel plated on the inside and out, encapsulating the base metal to completely seal out the elements and creating a durable, smooth finish on the inside for a consistent performance. This nickel plating provides excellent corrosion resistance, superior hardness, consistency and lubricity.

Expanded Gas Chamber
The 28A Series also features an expanded gas chamber. This expanded gas chamber eliminates the unwanted rod force increase when the shock is compressed.

Linear, Digressive and Low Speed Super
Digressive Valving Available

Digressive is the classic monotube shock feel. Linear provides a more stable car and allows the driver to feel the car better. Low Speed Super Digressive is an excellent choice when maximum rebound force is needed for big, low speed, tie-down applications

28A Series Shock Guide (Link)

Some parts are not legal for use in California or other states with similar laws/regulations

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
Select a Stroke/Compression/Rebound above to see what items are in this kit.

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