QA1 50 Series Steel Replaceable Bearing Shock

Circle Track Twin Tube Large Body Shock Absorber

QA1’s 50 Series shock is the classic QA1 twin tube shock. Its red steel body has been making regular appearances in victory lane all over the country for years. With hundreds of championships, racers love the durability, repeatability and performance of this shock.

• Large Body
• Racer Revalveable and Rebuildable
  Have 10 minutes? That's all it takes. Easy-to-follow instructions can give you the performance edge.
• Premium Aluminum Piston
  Incorporates dual bleed circuits for standard or custom valvings, including extreme split valvings.
• Non-Fading
  QA1 uses a premium proprietary blend of specially engineered oil to prevent fade.
• 15mm Centerless Ground, Hard Chrome Plated, Solid Piston Rod
  Precision surface eliminates piston rod flex, increasing valving consistency.
• Deflective Disk Valving
  Damping curve allows for complete control of suspension at low shaft speeds without creating extreme forces at high shaft velocities.
• Twin Tube Design
  The outer tube can get dented without binding the shock.
• 2" O.D. Steel Body
• Can be Run Upside Down
  Can be mounted upside down with no change in rate to reduce unsprung weight.
• Replaceable 1/2" I.D. Bearings
• 100% Dyno Tested and Serialized
• Dyno Sheets Available
• Custom Valving Available

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 # CK5005
• Standard Kit – 9” Stroke: Part #CK5007
• Premium Kit with Spring Glider for 5” O.D. Springs – 7” & 9” Stroke: Part #CK5009

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 #RK02).