QA1 27A688-4M 27 Series Monotube Shock 13.35-22.55in T-Bar/Poly 8C/4R IMCA Sealed

The QA1 27A688-4M is a 27 Series stock mount monotube shock absorber built for circle track racing applications requiring IMCA-legal sealed construction. Featuring an 8 compression / 4 rebound (8C/4R) linear valving configuration, this shock delivers a stable, predictable feel that gives drivers confident feedback through every corner.

Key Features:

• Monotube design with large steel body for maximum heat dissipation and consistent damping performance
• 46mm hard anodized piston for long-lasting durability and precise valving response
• Zinc plated body for corrosion resistance in demanding race environments
• 8C/4R linear valving — 8 clicks compression, 4 clicks rebound for a stable, balanced setup
• T-Bar lower mount / Polyurethane upper mount for stock mounting compatibility
• 13.35 in. collapsed length / 22.55 in. extended length
• IMCA sealed — compliant with IMCA sanctioning body rules
• 100% dyno tested and serialized for quality assurance
• Made in the USA

The 27 Series builds on the proven performance of QA1's 26 Series platform while adding a stock mount option, making it a versatile choice for racers who need rules-compliant equipment without sacrificing damping quality. Multiple valving options are available across the 27 Series lineup to fine-tune handling for any track condition.