Honda CRF450R 2011 User Manual

Front Suspension Adjustments
(cont’d)
Adjustments for Competition 121
21. Remove the push rod (31) from the fork
damper.
22. Remove the piston base (29) or mechanic's
stopper tool between the axle holder (23) and
fork centre bolt lock nut (30) while pushing the
fork damper.
NOTICE
Be careful not to damage the lock nut and fork
centre bolt hole.
23. Remove the fork damper assembly (32) from
the fork assembly (33).
Remove the fork from the vise.
Remove the fork spring (34) and spring
retainer (35) from the fork assembly. Remove
the O-ring (36).
NOTICE
Do not attempt to separate the fork assembly and
drop the axle holder out from the outer tube, which
can damage the guide bushings (37).
To avoid damage, hold both the outer tube and
slider.
1. Place the fork damper (1) in a vise with a piece
of wood or soft jaws to avoid damage.
NOTICE
Over-tighten the vice can damage the axle holder.
2. Loosen the fork cap assembly (2) while
holding the fork damper (1) using the
following tools:
• Fork cap bolt holder, 36 mm (3)
070MB-MEN0100
• Lock nut wrench (4) 070MA-MEN0100
(23) axle holder (29) piston base
(28) fork centre bolt (30) fork centre bolt lock nut
(23) axle holder (30) fork centre bolt lock nut
(29) piston base (31) push rod
(28)(30)
(29)
(23)
(31)(30)
(29)
(23)
(37) guide bushings
(32) fork damper assembly (35) spring retainer
(33) fork assembly (36) O-ring
(34) fork spring
(37)
NO GOOD
(32) (35)
(33)
(34)
(36)
Damper Oil Change
(1) fork damper (3) fork cap bolt holder, 36 mm
(2) fork cap assembly (4) lock nut wrench
(2)(3)
(4)
(1)
CRF450R.book Page 121 Thursday, July 8, 2010 9:34 AM

Honda CRF450R 2011 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Transmission	Close-ratio five-speed
Final Drive	#520 chain; 13T/48T
Front Brake	Single 240mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-19
Trail	114mm (4.5 inches)
Induction	PGM-FI, 46mm throttle body
Front Suspension	48mm inverted with rebound and compression damping adjustability; 12.2 inches travel
Rear Suspension	Pro-Link single shock with rebound and compression damping adjustability; 12.4 inches of travel
Wheelbase	58.7 inches
Seat Height	37.6 inches
Fuel Capacity	1.5 gallons