Four/Quad Fin Style:Classic The Flush Mount pin became

The Flush Mount pin became standard for all SP's in April 2016

All HUDSON Backstays are anodized - inside and out - aluminium for maximum durability and corrosion resistance

please see marking on your existing Shoe Plate or even better contact us for help

and toe bar end pieces with metric hardware

Included is an athlete facing keeper bolt for ease of adjustment

Four/Quad Fin Style:Classic The Flush Mount pin becameAll HUDSON Fins are hard anodized aluminium for maximum durability and corrosion resistance. The Four Quad Fin is offered in both Breakaway and Classic style. The Breakaway style was introduced in mid 2005 to allow for a quick onsite replacement option, and can be used on any HUDSON Four Quad with a set screw at the bow end of the fin box. Find our fin installation guide here.