Very nicely made shock absorber; looks like custom made. Chromoly steel; rebuildable. Nitrogen gas charged. Comes with cool-looking progressive rate springs in black or red. Internal bladder ...
Air springs are to suspension systems what vacuum-secondary carbs are to engines. Catch a glimpse of vacuum-secondaries under the hood of a hot rod and you'll automatically assume the motor's a turd.
After installing the Progressive Suspension 420-Series rear shock absorber on our 1986 BMW R65, we wanted to also revitalize the front end with a set of Progressive Fork Springs. The new-found control ...
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