Chapter 1 – General information / Technical specifications
Service Manual AJP PR3/PR4 1 - 32
Oil seals retainers of the forks
48x58x11 (Sachs)
-
Seals dust scrapers
48x58,5x13 (Sachs)
-
Covers forks (1
st
version - 2010/2012)
10 Faces (50mm)
-
Covers forks (2
nd
version – 2013)
10 Faces
-
O-ring of the fork cover
47x2,5
-
O-ring of the spring preload adjuster
22x2,0
-
O-ring of the preload adjuster retaining nut
40x1,75
-
O-ring of the return adjuster (M8)
3x1,75
-
O-ring of the screw air purging
2,8x1 // 3,8x1
-
Air purging screw (w/ O-ring)
M3x6 // M4x6
-
Adjust of the square nut on the spring preload
20mm height
18 - 23mm
Recommended oil
AGIP FORK 10W
-
Fork oil capacity (each fork)
596ml
-
Oil level on each side (w / fork descent)
130mm
-
Standard regulation
Return (up)
10 Cliques (since all loosened)
-
Compression (down)
16 Cliques (Since all tight)
-
Load setting of the
springs
External Adjuster on the
forks covers
All rotated to the left
-
PR4 EXTREME Fork
MARZOCCHI 48mm
-
Forks of the fork
Ø
48x592mm (DLC coating)
-
Outer forks tubes (Bordeaux)
569x59x54X48
-
Maximum Warping of the tubes / forks fork
-
0,2
Spring length (no load)
475mm
465mm
Preload of the springs
(inside hydraulic
cartridge)
Extreme (standard)
Retention bridle in 2
nd
slot
-
Extreme (competition)
Retention bridle in 1
st
slot
-
Fork springs constant
Soft
K=39,2N/mm (4,0Kgf/mm)
-
Hard
K=41,2N/mm (4,2Kgf/mm)
-
Springs length
475mm
-
Fork springs dimensions
Ø 43,5x475x33,7 (
Ø
5mm)
-
Springs type of material
55Cr Si6 Steel
-
Oil seals retainers of the forks
48x58x11
-
Seals dust scrapers
48x58,5x13
-
Type of hydraulic cartridge
Sealed cartridges
-
Forks covers
M61x3 (8 sides - 49mm)
-