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The Hyperpro Progressive Rear Spring enhances cornering
much harder spring rate
efficient hydraulic or pneumatic connections
the shock absorber of the Harley Davidson Fat Boy 114 FLFBS is fitted with a spring that is too stiff and wound progressively
For over 25 years we’ve delivered that standard in motorcycles — and now in four-wheel applications
Front Fork Oil Seals 41.00x54.00x11.00 Showa -NOK Fork Tubes The Hyperpro Progressive Rear SpringK Tech front fork oil seals are manufactured by NOK and are a direct replacement for the original equipment parts. NOK are chosen as original equipment by all Japanese suspension manufacturers for their quality and durability. All oil seals are supplied in pairs and available for most fitments.
