QA1 27A945-12M 27 Series Stock Mount Monotube Shock Stud/T-Bar 5C/12R IMCA Sealed

The QA1 27A945-12M is a stock mount monotube shock absorber from QA1's 27 Series — a purpose-built circle track racing shock designed for IMCA-sanctioned competition. Featuring a zinc-plated steel body for excellent corrosion resistance and a 46mm hard anodized piston, the 27 Series delivers the same proven monotube performance as QA1's legendary 26 Series while offering a convenient stock mount configuration.

This specific unit is valved at 5 compression / 12 rebound (5C/12R) with a linear valving profile and is sealed per IMCA sanctioning body requirements. It uses a stud upper mount and T-Bar lower mount, with a collapsed length of 9.17 inches and an extended length of 14.0 inches.

Key Features:

• Stock mount monotube design — bolt-in replacement for circle track applications
• Zinc-plated steel body for superior corrosion resistance on dirt and asphalt tracks
• 46mm hard anodized piston for precise, consistent damping performance
• 5C/12R linear valving — firm rebound bias for controlled weight transfer
• Stud upper / T-Bar lower mount configuration
• IMCA sealed — meets sanctioning body rules right out of the box
• Collapsed length: 9.17 in. | Extended length: 14.0 in.
• Part of QA1's broad 27 Series lineup offering multiple valving options for dirt and asphalt tuning

The QA1 27 Series monotube shock is an ideal upgrade for circle track racers seeking IMCA-legal performance with reliable, race-proven damping technology. Multiple valving configurations are available across the 27 Series lineup to suit a wide range of track conditions and setup preferences.