- - QA1 51 Series - Steel Twin Tube Shock

- - QA1 51 Series - Steel Twin Tube Shock

 

Circle Track Twin Tube Large Body Shock Absorber

The best keep getting better! We've taken your feedback, added new technology and developed an improved 50 Series shock absorber - the 51 Series. QA1’s 51 Series features a brand new in-house machined body, which has a large inside diameter for easy installation of gas bags. This twin tube shock absorber features hard anodized internals and has a zero gas pressure design providing the most grip on slick tracks and the best feel of any shock. Available in seven and nine inch strokes, the 51 Series is the premium twin tube choice for dirt and asphalt modifieds, late models and super stocks. The 51 Series is manufactured in QA1’s Lakeville, MN facility and is completely racer rebuildable and revalveable.

Additional Piston Option: QA1 also offers a brand new high-flow linear two port piston for the 51 Series as an additional accessory. This two port piston design allows the valve discs to open consistently which results in a smoother force curve and accommodates independent compression and rebound bleed circuits for precision low-speed force control.

Note: Be sure to check compressed and extended lengths carefully for proper fit. QA1 lengths do not necessarily correspond to competitors’ lengths.

 

Related Products:

With the Large Body Tuning Kit (part #TK01), you can change your shocks to any valving combination between 0 and 13.

Coil-Over Sleeve Kits

  • Standard Kit – 7” Stroke: Part # CK5105
  • Standard Kit – 9” Stroke: Part #CK5107
  • Premium Kit with Spring Glider for 5” O.D. Springs – 7” & 9” Stroke: Part #CK5109

Order a Spanner Wrench (part #T114W) for easy ride height adjustments.

Don’t forget a Tool Kit (part #7891-106) and a Rebuild Kit (part #RK01).


Need a valving that is not offered below? Check out our Custom Valve Shock to get exaclty what you want in your shock absorber including a Linear/Digressive Piston!


Part Number

Stroke

Valving Comp./Rebound

Compressed Height

Extended Height

5173

7

3

13.00

20.00

5173-5

7

3-5

13.00

20.00

5173-6

7

3-6

13.00

20.00

5173-8

7

3-8

13.00

20.00

5174

7

4

13.00

20.00

5174-6

7

4-6

13.00

20.00

5175

7

5

13.00

20.00

5175-3

7

5-3

13.00

20.00

5175-7

7

5-7

13.00

20.00

5176

7

6

13.00

20.00

5176-2

7

6-2

13.00

20.00

5176-4

7

6-4

13.00

20.00

5179-1

7

9-1

13.00

20.00

5193

9

3

15.00

24.00

5193-5

9

3-5

15.00

24.00

5194

9

4

15.00

24.00

5194-6

9

4-6

15.00

24.00

5195

9

5

15.00

24.00

5195-3

9

5-3

15.00

24.00

5196

9

6

15.00

24.00

5196-2

9

6-2

15.00

24.00

5197-2

9

7-2

15.00

24.00

5197-3

9

7-3

15.00

24.00

5198-2

9

8-2

15.00

24.00

5199-2

9

9-2

15.00

24.00

 

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51 Series Custom Valve Shock
Includes: 51 Series shock, revalving labor, upgraded synthetic oil ..
$148.28
51 Series Shock - 5076-4
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5173
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5173-5
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5173-6
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5173-8
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5174
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5174-6
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5175
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5175-3
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5175-7
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5176
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5176-2
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5179-1
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5193
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5193-5
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5194
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5194-6
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5195
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
51 Series Shock - 5195-3
QA1 51 Series Steel Replaceable Bearing Shock Circle Track Twin Tube Large Body ..
$139.95
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