................................................ HONDA 400X.............................................HONDA 450R
ENGINE/TRANSMISSION
Engine type ........... Air-cooled, SOHC, 4-valve 4-stroke ..................... Liquid-cooled, OHC, 4-valve, 4-stroke
Displacement ................................................. 397cc ................................................................. 450cc
Bore and stroke..............................85mm x 70.0mm ....................................................96mm x 62mm
Compression ratio ........................................... 9.1:1 ................................................................... 12:1
Lubrication............................................... Dry sump........................................................... Wet sump
Carburetion.....................................38mm Keihin CV ................................................ 40mm Keihin FCR
Additional cooling................................................N/A..................................................................... Fan
Starting/back-up ....................................Electric/none ........................................................Electric/none
Choke location ..................................Left side of carb................................................................... Carb
Starting procedure...In neutral or any gear w/ clutch in.......................................................... In any gear
Idle adjustment................................................... N/A .......................... Thumbscrew on right side of carb
Air filter:
Type.........................................Reusable oiled foam ............................................ Washable oiled foam
Access .......Unlatch seat, remove airbox lid ( 6 clips),...... Unlatch seat, unlatch 6 thumb clips, remove lid
....................................unscrew filter retaining screw
Drive system...................................................... N/A ...................................................................2WD
Transmission........Fully manual five speed with reverse...................... Manual shift, manual clutch 5-speed
Final drive .......................................520 O-ring chain .................................................................. Chain
DIMENSIONS/CAPACITIES/WEIGHTS
Fuel capacity ................................................ 2. 6 gal. ............................................................... 2. 7 gal.
Recommended fuel ...................... 91 octane unleaded..................................................................... N/A
Wheelbase ...................................................... 48. 4” .................................................................. 50. 2”
Overall length/width/height.............. 71. 7”/45.5”/43.7”................................................... 73”/46.3”/43.3”
Seat height ..................................................... 31. 9” .................................................................. 32. 8”
Wet weight ...................................................408 lb. ................................................................388 lb.
ROLLING CHASSIS
Frame ............................................ Steel round tube ........................................ Round mild-steel tubing
Suspension/wheel travel
Front.......... Double A-arms w/ prel.-adj. shocks/8.2” .... Double A-arms w/ spring prel., comp. & reb.-adj.
............................................................................................................piggyback reservoir shocks/8.4”
Rear .......... Double A-arms w/ prel., comp. and reb. .......... Swingarm w/ spring prel., comp. & reb.-adj.
............................................damping-adj. shock/9.1” .............................. piggyback reservoir shock/9.3”
Brakes/actuation:
Front...................... Hydraulic discs/right-hand lever ............................. Hydraulic discs/right-hand lever
Rear ........................ Hydraulic disc/right-foot pedal........................................ Hydraulic disc/right foot
Parking brake .......................................... Rear brake ............................................ Rear brake-lever lock
Tires:
Front.................................... 21x7-10 Ohtsu radial ..............................21x7-10 Dunlop KT371 radials
Rear ....................................20x11-9 Ohtsu radial........................... 20x10-9 Dunlop KT335H radials
DETAILS
Lighting:
Front.........................Body-mounted 35W headlight ...........................................30W/30W headlights
Rear .............................................. Tail/brake light ......................................... LED taillight/brake light
Instruments ................... Neutral, reverse, high beam, .................................. Neutral and temp indicators
..........................................high temp indicator lights
Colors ...............................................................Red................................ Red, Special Edition Tri-Color
Minimum operator age......................................... 16..................................................................... N/A
Suggested retail price .................................... $6399 ................................................................ $7799
Contact ........................................................................................... American Honda, (866) 784-1870
SPECS RATINGS
HONDA HONDA
400X 450R
MOTOR/TRANNY
Overall po wer ............................ 4 4
Lo w...................................... 5 4
Mid...................................... 4 5
Top ...................................... 4 5
Throttle response....................... 4 5
Idling smoothness ...................... 4 5
Shifting/tranny ........................... 4 5
HANDLING AND CHASSIS
Overall handling.......................... 4 5
Turning precision........................ 4 5
Turning stability ......................... 4 5
Powersliding .............................. 5 5
Steering ease ............................ 5 5
Off-cambers .............................. 5 5
High-speed straight-line stability.. 4 5
Jumping .................................... 4 5
Wheelying ................................. 5 5
Tracking in whoops..................... 4 5
Brakes: f ................................... 5 5
Brakes: r................................... 5 5
Suspension f:............................. 4 4
Suspension r ............................. 4 4
Low-speed ride plushness ........... 5 4
High-speed bump control ............ 4 5
Ground clearance ....................... 3 3
Undercarriage protection ............ 4 3
Traction .................................... 5 5
Hill-climbing............................... 4 4
Downhilling ................................ 5 5
Water/mud................................ 4 4
RIDER COMFORT AND CONVENIENCE
Overall ease of use..................... 4 5
Start-up ease ............................ 3 4
Seat comfort ............................. 5 5
Vibration ................................... 4 4
Bars/seat/footpeg location .......... 5 5
Mud/water fender protection....... 4 4
Air-filter access ......................... 5 5
Airbox design............................. 5 5
Choke access............................. 1 3
Hand-control ease ...................... 5 5
Storage box size ........................ 3 3
Storage box access.................... 5 5
OVERALL
Overall rating............................. 4 5
Fit and finish.............................. 5 5
Overall rating............................. 4 4
Pro racer Darin Hoeft is all
about the 450R: “The 450R’s
faster, quicker-revving motor
makes it my pick. It just pulls
so much harder than the
400. The suspension suits
the way I ride better than the
400’s too.”
