Top-out spring for cartridge swap

Jones Spring Company spring #285 chosen for use as a top-out spring to limit travel to the original 230mm when installing '09-'11 Aprilia RXV 4.5/5.5 (Marzocchi Shiver) cartridges in '09-'12 BMW F800GS forks, after squaring ends, and deburring wire ends & inside corners.

installed on damper rod

spring, before squaring

spring, after squaring

spring, after squaring but before deburring

fork bottom machining

©motolab 2002-2025