this high-performance sport model, Honda sets the
class standard for superb handling, excellent power
Features & Benefits
All-new powerful purpose-built ATV four-stroke
450cc liquid-cooled four-valve Unicam(tm) engine
is based on the award-winning CRF(tm)450R motocrosser's.
Compact, lightweight engine designed specifically
for ATV usage is worthy of its CRF heritage.
Unicam valve train provides the light weight
of a compact single-cam drive and the optimum
combustion chamber shape for maximum power at
all engine rpm.
Unicam valve train features a carburized single
camshaft that directly actuates two 36mm steel
intake valves. The camshaft exhaust lobe actuates
two 30mm steel exhaust valves via a forked,
low-friction roller rocker-arm.
Lightweight, compact, internal auto decompressor
provides superb cold-starting and hot-starting
Engine incorporates ATV-type forward kickstarting
for ease of starting and light weight.
Crankshaft is made of high-strength, low-carbon
steel with carburized main journals for maximum
durability at sustained high-rpm operation.
Cylinder head cover is made of magnesium to
reduce engine weight.
Cast 10.5:1 compression piston features 28.4mm
piston skirt length, with three piston rings
for added durability.
Double-carburized connecting rod utilizes a
big-end needle bearing for maximum high-rpm
performance and durability.
Nikasil(r) cylinder lining is lightweight and
provides cooler and quieter operation for extended
Press-fitted steel spark plug pipe fits between
forked exhaust rocker arms, further contributing
to compact cylinder head design.
42mm Keihin butterfly-type carburetor features
light throttle effort, smooth operation and
Carburetor features a throttle position sensor
(TPS) that helps maintain linear response throughout
the rpm range.
Twin-sump lubrication system separates the oil
supply for the crankshaft, piston and valve
train from the clutch and transmission. This
ensures a cool supply of oil to the clutch,
eliminates clutch and transmission material
contamination to the engine oil, and reduces
the amount of circulating oil and the required
size of the oil pump. This design allows for
an oil cooler and no external oil tank is needed.
Aluminum oil cooler ensures a cool supply of
Vertically split crankcases feature a built-in
oil pump, reducing weight compared to a conventional
Left side countershaft bearing and axle carrier
feature double-row bearings for added durability.
Exhaust system uses a lightweight stainless
steel header and muffler.
High-capacity radiator is rated at 17.2Kw for
efficient engine cooling in extreme operating
Compact, flat radiator fan is lightweight and
provides efficient cooling.
Gear-driven balancer reduces vibration and drives
the water pump. Eight clutch plates provide
the surface area necessary to handle the engine's
Durable five-speed transmission with all-new
ratios designed for ATV application.
Round-tube steel frame with removable aluminum
subframe is lightweight and durable.
One-piece cast aluminum swingarm for light weight,
maximum strength and durability.
Independent double-wishbone front suspension
with fully adjustable Showa(r) shocks provide
8.4 inches of travel, and feature rear-facing
reservoirs for increased durability.
Pro-Link(r) rear suspension with fully adjustable
Showa piggyback shock provides 9 inches of travel.
Dual 174mm front disc brakes with twin-piston
calipers and new high-pressure front brake lines
provide excellent stopping power.
New 190mm rear disc and beefy single-piston
caliper provide improved stopping power and
increased ground clearance.
Aluminum brake calipers and brackets front and
rear reduce weight.
Removable aluminum rear grabrail and front bumper
for reduced weight.
Lightweight aluminum wheels reduce unsprung
weight for outstanding handling.
Dunlop radial tires provide superb traction
and cornering ability.
Durable and lightweight O-ring-sealed drive
design meets California Air Resources Board
(CARB) off-road emissions standards.
Convenient oil-level window allows for at-a-glance
Long, narrow seat is designed for superior comfort
and performance in all operating conditions.
Saddle is also easy to remove for convenient
access to the air filter.
Adjustable dual headlights with 30-watt bulbs
and improved reflectors for excellent visibility
and distinctive appearance.
Pivot-access brake calipers for easy pad replacement.
Engine cases protected by high-impact plastic
LED tail/brake light for light weight and aggressive
New, shorter CRF-style adjustable clutch and
front brake lever.
New wider footpegs for improved rider control.
Aluminum shift and brake pedals.
New CRF-type handlebar grips.
Honda Racing-inspired colors and graphics.
Optional HRC(r) Racing Kit available.
Transferable six-month limited warranty; extended
coverage available with a Honda Protection Plan.
Ownership includes one-year complimentary Membership
in the Honda Rider's Club of America(tm). Benefits
include discounts, travel benefits, roadside
assistance and much more. For HRCA(r) details,
Engine Type 450cc liquid-cooled single-cylinder
Bore and Stroke 94.0mm x 64.8mm
Compression Ratio 10.5:1
Valve Train Unicam; four-valve
Carburetion Keihin 42.0mm with throttle position
Ignition CD with electronic advance
Starter Forward kick
Final Drive O-ring-sealed chain
CHASSIS, SUSPENSION, BRAKE & WHEELS
Suspension Independent double-wishbone with
Showa shocks, featuring adjustable spring preload,
rebound and compression damping; 8.4-inch travel
Rear Suspension Pro-Link with single Showa shock
featuring adjustable spring preload, rebound
and compression damping; 9.0-inch travel
Front Brakes Dual hydraulic 174.0mm discs with
Rear Brake Single hydraulic 190.0mm disc with
Front Tires 22 x 7-10 knobby radial
Rear Tires 20 x 10-9 knobby radial
Length 72.6 inches
Width 46.3 inches
Height 43.6 inches
Wheelbase 49.2 inches
Seat Height 32.6 inches
Ground Clearance 4.2 inches
Dry Weight 350.0 pounds
Fuel Capacity 3.2 gallons
Age Recommendation For highly experienced riders
16 years of age and older.
Options Consult owner’s manual for optional
HRC Racing Kit parts.
Available Colors Red
Model ID TRX450R
BASE MSRP $6,499