Shock Absorber Type 641 Piggyback Preload Adjuster:Hook Wrench radial piston technology and wet-run

radial piston technology and wet-run guidance ensure a highly sensitive response and maximum longevity

The Progressive Lowering Rear Spring is designed to lower the bike while enhancing ride quality

this shock is designed to fit in virtually any mounting space—no matter the constraints

The Wilbers solution replaces these with progressive

The dual passages allow fluid or gas to flow through the bolt

Shock Absorber Type 641 Piggyback Preload Adjuster:Hook Wrench radial piston technology and wet-runThis high performance rear shock set for Harley Davidson touring models was developed in collaboration with the Harley Davidson Germany Bagger Race Team and fine tuned on the racetrack. The Piggyback Kit perfectly balances sportiness and comfort, offering adjustable rebound and compression damping plus infinitely variable spring preload. As with all Wilbers products, each set is built to your exact specifications and delivered with ABE and a 5 year