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Progressive’s 412 Series shocks combine great price with
awesome performance.
418 Series shocks offer five rebound damping and four spring pre-load
settings.
The 440 I.A.S. is Progressive’s top-of-the-line shock.
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2004 Harley-Davidsons are on the showroom floor, and Progressive
Suspension has already completed rear shock update applications
for the entire 2004 Harley-Davidson line, including the new Sportster.
Progressive Suspension’s 412
Series shocks combine a great price with great performance. They
feature precision double-walled steel bodies to protect the inner
cylinder and provide consistent damping, a precision-ground, hard-chromed
steel shaft for strength and durability and multi-stage, velocity-sensitive
internal valving. They come in lengths ranging from 11 inches to
14.25 inches, and also come in Black or equipped with heavy duty
springs.
The gas-charged 418 Series shock offers
five rebound damping and four spring preload settings, and has velocity-sensitive,
multi-stage internal valving for a consistent ride and good handling
over a variety of surfaces. The body is made from aluminum with
a steel inner wall and a hard-chromed 4130 chrome-moly shaft. The
418 Series is completely rebuildable, too. Springs are available
in Chrome or Black and also heavy duty.
At the top of the Progressive Suspension
line is the 440 I.A.S., with inertia-sensitive and velocity-sensitive
damping, polished and anodized billet aluminum end covers, easily
adjustable spring pre-load (no tools required), progressive-rate
springs (in Chrome or a Black powder coat finish) and a new limited
lifetime warranty on the shock and spring. The I.A.S. Series shocks
are a recommended replacement for the stock air shocks found on
the Harley FLH series motorcycles.
And the new Airtail® Series for the Harley Softail models give
riders the ability to raise and lower with the touch of a switch.
Progressive Suspension is out to give
them the ride of their lives. Give your Drag rep a call today! 
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