Progressive Suspension
PS, fork spring kit. 47 mm
PS, fork spring kit. 47 mm
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Progressive rate fork springs of superior quality. Precision wound and made of high quality chrome silicon wire. Provides a smooth ride but the progressive rate gets more firm when compressed; which helps prevent bottoming out when taking big bumps but still gives a comfortable ride in normal cruising circumstances. Also helps reduce front end dive during hard braking. Each kit comes with progressive fork springs and spacers where necessary.
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Why buy from Forty5°
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Not sure it fits?
Ask on WhatsAppPick your bike at the top of the page to see which parts are listed for it. For anything not listed, send us your VIN on WhatsApp and we'll confirm the fit before you order.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp Tuesday to Sunday, 11am–7pm.