20mm Cartridge
Optional MidValve Kits and ReValve Kits


A must install item for aggressive or heavier riders, allows for less preload, softer compression settings and lighter spring rates.
This kit will keep the fork up in the travel, while improving the fork action and eliminating harshness.

 

This optional kit consists of MidValve shims stacked in front of the rebound check plate.
This allows the check plate to limit the flow on very low speed fork movements by reducing the gap or "Float"
that the check plate can open, and as the speed increases the amount the MidValve shims bend open will
prevent fork dive from heavy braking, jump faces or rolling bumps.
Because the check plate is stacked with shims, at higher fork speeds the MidValve
and check plate will open completely allowing the MidValve to flow more oil without any harshness.
This MidValve can be tailored to your type of riding by changing the shim configuration to increase the gap or "Float"
and or change the stiffness of the stack to determine at what speed the MidValve transitions to a check valve.

The optional ReValve kit allows the user to revalve and custom setup the cartridge kit for and any condition or rider style
. Includes all the shims needed to revalve the rebound and compression systems for one cartridge. Instructions available for download here:

Download: 20mm Cartridge Kit Revalving and Optional MidValve Procedure (53.2 MB)

Shown Assembled on end of cartridge rod
MidValve kit shown just ahead (the left side) of rebound piston

Exploded View
MidValve Kit shown in lower left
Revalve Kit shown on right

 

Cartridge Kit disassembly Tools
sold seperately
23.5 mm / 10 mm & 3/8 inch shaft clamp and 4 pronged cap removal tool


20/21.2 mm Cartridge MidValve Kit
(21.2 mm fits DHF Models)

 

MidValve Kit

Retail price $39

Or add as option to cartridge kit and we will install it for you!
Set-up chart of what we did is included.

If you install it yourself make sure you have the proper tools for disassembly or add them to your cart below, set-up chart and optional shims included.

 

 

 

 

20 mm, 21.2mm or Marzocchi EVO Compression
Revalve Shim Kits

ReValve Shim Kits and Tools

Retail price $49 each

Or add the revalve kit as option to cartridge kit and we will install it for you! Setup chart of what we did and optional shims are included.
If you install it yourself make sure you have the proper tools for disassembly or be sure to add them to your cart.

 

 

 

 e-mail at :

techinfo@avalanchedownhillracing.com