The 430-series shock range, launched around 2011, use high pressure gas monotubes with larger pistons
and deflective discs for tighter damping control. Preload adjustment is tool-less, by twisting the top cap on the damper's threaded body.
Styling is strikingly different and modern, with polished chrome damper body and aluminium fluted end caps.
Beautiful to look at and to hold, and you won't be disappointed with the performance. They are happy to work either way up.
The 444-series shocks are selling very well due to their combination of
understated styling and brilliant performance. They are an improved replacement for the successful 440 range, and
incorporate Progressive's Frequency Sensing Technology. This innovation allows the damper to sense the
difference between low speed frame movement and high speed wheel displacement, which results in optimised shock
control whatever the road conditions.
Top of the Progressive twinshock range are the 970 piggybacks. Inspired by racers, riders and those that
demand more of their bikes than weekend coffee runs, the US-built 970 Series shocks combine a high pressure
gas monotube design with deflective disc damping routed through two unique circuits - discs on both sides of the
fully floating piston. Aluminium bodies with anti-friction coated internal surfaces. Unusually for a piggyback shock,
only the compression damping is adjustable (18 clicks),
while rebound damping is fixed for each application. Not a big seller - the high price as a result of the rising
dollar/£ rate means that these shocks are expensive. But press reviewers have loved their performance,
they're beautifully made, so ideal if you want great shocks that are a little different.