Fork's Internal Components And Fork's Operation - Marzocchi BOMBER serie Betriebs- Und Wartungsanleitung

Technical information
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Fork's internal components and fork's operation

Inside MARZOCCHI forks you will find coil springs or air as a spring system.
The damping load that is generated during the fork legs compression and rebound, can be adjusted by
cartridges, controlled by external adjusters, or by special hydraulic valve pumping rods, which operate
according to compression speed (Speed Sensitive Valving).
Pumping rods can be controlled by external or internal adjusters, or they can have a fixed setting.
Cartridges and pumping rods are fully emerged in oil (Open Bath System). This system provides proper
lubrication and cooling of the inner sliding parts; furthermore, the oil volume works as a damping and
setting element.
The Open Bath system reduces the maintenance frequency compared to a sealed cartridge system.
Stanchion tubes are guided in the sliders by two teflon-coated bushings, free from static friction.
The seal system prevents oil leaks and contamination from particles entering the fork. It uses a special
dual-lip oil seal and a dust seal at the top of each slider.
You will find here below the different fork damping systems:
ECC5: the new Extension Control Cartridge offers on-the-fly adjustment of the rebound damping with a 5-
position clicker. Use the fast rebound position for downhilling, the 3 middle positions for race start sprints
and rough climbing and the fully closed ECC position for steep dirt switchback climbs or Marathon style
road climbs.
ETA: the new Extension Travel Adjustment locks down the rebound damping like the standard ECC, but
still allows 25 - 30mm of travel.
HSCV: the High-Speed Compression Valve (HSCV) allows lighter damping for better trail sensitivity but
still resists bottoming. It is the best way to provide a controlled damping environment for consistent and
perfect damping. The moving valve on the shaft controls rebound and low-speed compression damping.
The special valve in the bottom of the cartridge (HSCV), takes the edge of any hard hit to maintain
control.
SSV: the Speed Sensitive Valve (SSV) uses 5 valve circuits to control damping rates based on the fork's
compression and rebound speed as well as the fork's position in the travel.
SSVF: The latest version of our Speed Sensitive Valve has a new Floating valve and spring design. It
incorporates a spring-loaded valve, which is more responsive and uses an external rebound adjuster.