HONDA CRF 450 R 2008        

Rider Weight in Kilograms:

Ideal Fork Rate: kg/mm

Ideal Shock Rate: kg/mm


Stock Fork Spring Rate: 0.470 kg/mm

Stock Shock Spring Rate: 5.40 kg/mm


Motocross


Ideal Rider Weight 100 kg


4 Stroke Engine 450 cc


Twin Chamber Fork Shaft Tool

Twin Chamber Fork Shaft Tool

93-017-00

$33.00

Teflon Shaft Bushing - 16id x 18 x 12

Teflon Shaft Bushing - 16id x 18 x 12

22-076-00

$11.00

Spring Perch Kit - 24mm TCV Showa

Spring Perch Kit - 24mm TCV Showa

30-004-34

$233.01

Showa Piston Band 50 x 13 x 1.2

Showa Piston Band 50 x 13 x 1.2

22-380-00

$29.00

Showa Fork Cartridge Seal 12.5 x 17 x 3

Showa Fork Cartridge Seal 12.5 x 17 x 3

24-703-10

$22.00

Showa 16mm id Dust Wiper

Showa 16mm id Dust Wiper

22-420-00

$27.50

Showa 12mm Rebound Check Valve

Showa 12mm Rebound Check Valve

25-303-01

$44.00

Shock Seal Head Assembly 50 x 16 x 26.5

Shock Seal Head Assembly 50 x 16 x 26.5

22-522-00

$55.00

Shock Preload Collar Spanner

Shock Preload Collar Spanner

93-015-00

$28.60

Shock Oil Seal Showa/KYB 16X28X5

Shock Oil Seal Showa/KYB 16X28X5

22-401-00

$27.50

Shock Bladder 50 x 105

Shock Bladder 50 x 105

22-105-00

$38.50

Shaft Clamp - 20 24 28

Shaft Clamp - 20 24 28

93-004-02

$96.80

Shaft Clamp - 10 12 12.5 14 16 18

Shaft Clamp - 10 12 12.5 14 16 18

93-004-01

$96.80

Outer Guide Bush 47 x 15 x 2.0

Outer Guide Bush 47 x 15 x 2.0

24-510-00

$27.50

Inner Slide Bush 47 x 20 x 1.0

Inner Slide Bush 47 x 20 x 1.0

24-611-00

$27.50

Fork Seal Driver Kit

Fork Seal Driver Kit

93-009-00

$258.50

Fork Seal & Wiper Set 47 x 58 x 10

Fork Seal & Wiper Set 47 x 58 x 10

24-870-00

$46.75

Fork Oil Seals 47mm id

Fork Oil Seals 47mm id

24-889-00

$33.00

Fork Oil Level Tool

Fork Oil Level Tool

93-002-00

$49.50

Fork Dust Wipers 47mm id

Fork Dust Wipers 47mm id

24-888-00

$30.80

Fork Bleeder Tool Set

Fork Bleeder Tool Set

93-007-00

$110.00

Bushing Driver Set

Bushing Driver Set

93-118-00

$174.90

Bump Stop Rubber 16 x 55 x 58

Bump Stop Rubber 16 x 55 x 58

22-230-00

$49.50

21-001 Fork Inner Chamber Springs
RRP $145.20
20-115 Motorcycle Shock Spring
RRP $218.90
19-185 Motorcycle Fork Springs
RRP $218.90


47mm OD

Showa USD 47mm OD


Twin Chamber Fork

Twin Chamber Fork


12 Clicks

Compression Adjuster 12 Clicks


12 Clicks

Rebound Adjuster 12 Clicks


Internal

Top Out Type Internal


25 in-lb (0.29 kgf-m)

Compression Nut Torque 25 in-lb (0.29 kgf-m)


34 / 23 mm

Fork Cartridge Inner Diameter 34 / 23 mm


12.5 mm

Fork Rod Outer Diameter 12.5 mm


320 mm

Fork Travel 320 mm


43.9 mm

Fork Tube Inner Diameter 43.9 mm


47mm id x 20mm height x 1.0mm thick

Inner Bush Dimensions 47mm id x 20mm height x 1.0mm thick


47mm od x 15mm height x 2.0mm thick

Outer Bush Dimensions 47mm od x 15mm height x 2.0mm thick


42.8 mm

Fork Spring Large Outer Diameter 42.8 mm


42.5 mm

Fork Spring Small Outer Diameter 42.5 mm


2.1 kg/mm

Inner Chamber Spring Rate 2.1 kg/mm


27.5

Number of Coils 27.5


497 mm

Spring Free Length 497 mm


0.470 kg/mm

Spring Rate - Measured 0.470 kg/mm


5.08 mm

Spring Wire Diameter 5.08 mm


490 mm

Set Length 490 mm


8 mm

Standard Preload 8 mm


5

Fork Oil Weight 5


390 cc

Fork Oil Level 390 cc


2 Litres

Oil Quantity 2 Litres


50mm ID

Showa 50mm ID


Yes

Shock Linkage Yes


14 Clicks

Compression Adjuster 14 Clicks


3 Turns

Compression Adjuster - High Speed 3 Turns


20 Clicks

Rebound Adjuster 20 Clicks


175 psi

Nitrogen Pressure 175 psi


5 Weight

Shock Oil 5 Weight


16 mm

Shock Shaft Outer Diameter 16 mm


12 mm

Shock Shaft Outer Diameter at Valve 12 mm


M12 x 1.25

Shock Shaft Nut Thread M12 x 1.25


#50 (1.8mm)

Shock Piston Rebound Bleed #50 (1.8mm)


10 mm

Standard Preload 10 mm


100 mm

Standard Sag 100 mm


25 ft lbs (34 NM)

Shaft Nut Torque 25 ft lbs (34 NM)


Yellow

OEM Spring Colour Yellow


267 mm

Spring Free Length 267 mm


66.5 mm

Shock Spring Large Inner Diameter 66.5 mm


63.5 mm

Shock Spring Small Inner Diameter 63.5 mm


65.4 mm

Shock Collar Large Outer Diameter 65.4 mm


63.0 mm

Shock Collar Small Outer Diameter 63.0 mm


261 mm

Spring Maximum Set Length 261 mm


224 mm

Spring Minimum Set Length 224 mm


5.40 kg/mm

Spring Rate - Measured 5.40 kg/mm