RT4 – APRILIA RS 660 (2021-2023) 0MSA02APR009 versys-1000

RT4 – APRILIA RS 660 (2021-2023) 0MSA02APR009 versys-1000RT4 High Performance Rear Shock with Flex Hose The RT4 rear shock absorber features DeCarbon technology and a remote flex hose, offering superior thermal management and performance under extreme riding conditions. CNC machined in Ergal 7075 aluminum. 46 mm piston 16 mm shaft Ergal 7075 cylinder, heads, and mounts Low speed compression: 26 clicks Rebound: 42 clicks Micrometric spring preload + optional hydraulic preload Adjustable eye to eye length

It’s compatible with a wide range of aftermarket and OEM shocks

designed to enhance the performance of BMW motorcycles without removing the original ESA electronics

while remaining affordable

offering a fast plug-and-play upgrade

Custom-tuned on request – Fully serviceable – 2-year warranty

Rebound: 42 clicks

The Maselli PMONO allows riders to adjust spring preload easily and precisely without tools

Rebound: 35 clicks

Professional shock absorber overhaul service

Tool-free spring preload adjustment

ø 10 mm steel shaft

Progressive shim stack