Fork cartridges Aprilia RS4 125 2011 - 2017 | made by Matris Italy

#F20A120K

#F20A120K

The F20K is an asymmetrical hydraulic cartridge kit with 20 mm diameter.
It replaces all internal components to upgrade the fork.

Fully adjustable on spring preload with separate asymmetrical compression and rebound adjustments.
Cartridge is provided using the innovative quad-valve system that avoids the risk of fluid cavitation.

It allows an excellent hydraulic damping upgrade and a great set-up.

For sport, naked, adventure, race, track and street use.

Every adjustment click makes a difference to the damping and can change the needed setting.

All components are made of aluminum with oxidation surface treatment to ensure long wear life.

The kit is supplied with high sliding fluid.

It is fully and easily overhaul for proper and regular maintenance.

The cartridge kit is plug & play.
It is supplied ready to fit.
No modification to the original fork is required for assembling.
It is fully reversible.

Features:
- Spring preload adjustment with reference clicks (range 15 mm)
- Compression adjustment (range 38 clicks)
- Rebound adjustment (range 38 clicks).

By indicating the pilot weight in the order notes, we will mount the specific springs for your needs.

#F25A120SA

#F25A120SA

#F25A120SA

#F25A120SA

The F25SA sealed kit is the top of Matris hydraulic fork cartridge range.
Especially suitable for sports and racing use.

It fully replaces all existing original internals, transforming the fork in a new fully-adjustable damping system.

Adjustments:
- Compression (range 38 clicks)
- Rebound (range 38 clicks)
- Preload with click reference (range 15 mm).

It improves performance increasing damping coefficient.
It avoids the risk of fluid cavitation.
It offers greater and easier set-up customization.

It decreases weight by using lightweight alloys for all components.
Linear springs made of Si-Cr steel.
Spring guides made of technopolymer.
Pumping rods diameter 12 mm made of aluminum.
Cartridge cylinders made of aluminum.
It allows fast disassembly of the hydraulic cartridge unit without removing fork.

It is fully and easily overhaul for proper and regular maintenance.

The cartridge kit is ready to fit and pre-assembled (sealed with oil inside).
No modification to the original fork is required.
The kit includes specific high sliding fluid.

By indicating the pilot weight in the order notes, we will mount the specific springs for your needs.