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2005 Suzuki RM-Z450
2005 RM-Z450
The Ultimate Four-Stroke Weapon
Introducing the all-new RM-Z450, another step toward establishing Suzuki's dominance in four-stroke motocross racing.
The RM-Z450 offers supremely balanced performance - strong, controllable power delivery complemented by extraordinarily lightweight handling. In fact, the RM-Z450 is extremely lightweight - and it has incredible performance to match. That combination means you can launch out of corners with breathtaking acceleration and attack the nastiest sections of the track with total confidence. The Suzuki RM-Z450 is loaded with advanced technology to make it remarkably easy to ride. Including the Suzuki Advanced Sump System, the Suzuki Active Vent System, lightweight and durable titanium valves, hollow billet camshafts and much more.
The all-new RM-Z450. It's the bike you get when you combine Suzuki's championship-winning motocross program with the legendary GSX-RTM four-stroke road-racing program.
Pricing/Color Information
Features
Chassis/Suspension
Attractive aluminum twin-spar frame designed for optimum strength, rigidity and weight
Aluminum swingarm with tapered beam design similar to RM250 - features cast-aluminum cross beam to improve straight-line performance
RM250-type rear suspension linkage - suspension load placed on the swingarm instead of the frame to reduce weight, and allows smoother movement of the rear shock and linkage for improved rear wheel traction
New lightweight chain guide design similar to RM125/250 - cutaway design reduces weight
Showa-brand cartridge-style front fork with 47mm inner tube, plus 22-way compression damping, 20-way rebound damping and 12.2 inches. of wheel travel - internal structure similar to RM250
Showa-brand rear shock absorber with large 50mm piston and 18mm inner rod for increased oil flow and stable damping performance
Large 250mm front disc brake designed for reduced weight and high durability - includes Kevlar brake hose for low expansion rate and improved brake lever feel - rotor is mounted at four points instead of six with new-type shouldered bolts for a secure fit and minimal weight
Compact 240mm rear disc brake with lightweight caliper body similar to RM-Z250 - rotor is mounted at four points instead of six with new-type shouldered bolts for a secure fit and minimal weight
New-style wheels, spokes and spoke nipples designed for the best balance of weight, rigidity and overall wheel strength
New-style front and rear wheel hubs designed for reduced weight and added strength - provides more rigid assembly when combined with larger axle, new spoke design and wide wheel bearing pitch
Specially-designed Bridgestone tires with large contact patch for improved traction and acceleration - 90/100-21 front, 120/90-19 rear - wider than competing models without weight increase
Renthal tapered aluminum handlebars with Renthal-labeled handlebar pad - lighter than standard bars - rubber-mounted to reduce vibration
Titanium footpegs designed for high grip and minimal weight
Slim fuel tank shape designed to blend with the seat and radiator shrouds for easy rider movement and weight transition
New-design rear fender and frame covers with fresh air vents for increased air flow to the carburetor airbox
Shouldered aluminum spacers for quick and secure mounting of body work
Engine
Compact 450cc, 4-stroke, liquid-cooled, DOHC, 4-valve engine - lightweight design with emphasis on broad power delivery
Narrow cylinder head design featuring shim-under-bucket valve train with titanium valves for reduced reciprocating mass and more stable high-rpm performance
Lightweight hollow-type camshafts with carburized surface treatment for durability and high lubrication qualities - hollow design further contributes to precise valve operation at all engine rpm
Durable forged-aluminum piston with tin plating and oil retaining grooves to reduce friction and wear
Electro-plated aluminum cylinder bore for increased durability and heat transfer
KeihinTM FCR40 carburetor with hot start system and a throttle-position sensor linked to digital CDI ignition
Lightweight exhaust system with titanium head pipe with large-capacity stainless-steel secondary pipe and aluminum muffler
Automatic decompression system similar to RM-Z250 - simple lightweight system designed for easy kick starting and durable operation
Suzuki Advanced Sump System - semi-dry-sump lubrication system featuring separate crankshaft and transmission oil chambers - permits low crankshaft placement for reduced engine height and low center-of-gravity
Suzuki Active Vent System - one-way reed valve system between crankshaft and transmission to reduce crank chamber pressure and enhance piston ring seal performance and overall engine power
Four-speed transmission for weight reduction and compact engine size - allows clutch to be placed closer to engine centerline to concentrate engine mass and reduces crankcase area required for transmission
Counterbalancer shaft gear-driven off the magneto rotor to reduce engine vibration without adding to engine size or weight
2005 Suzuki RM-Z450
Specifications
Engine
- Engine
- 449cc, four-stroke, single-cylinder, liquid cooled, DOHC, 4-valve
- Bore x Stroke
- 95.5 x 62.8mm
- Compression Ratio
- 12.1:1
- Fuel System
- KeihinTM FCR40
- Lubrication
- Semi-dry sump
- Fuel Capacity
- 7.0 liter (1.8 gal.)
Transmission
- Ignition
- Digital AC-CDI
- Transmission
- 4-speed
- Final Drive
- #520 chain
Chassis
- Suspension Front
- Telescopic, cartridge-type, 22 compression & 20 rebound settings, 12.2 inches, 310mm of wheel travel
- Suspension Rear
- Link-type, spring preload fully-adjustable, 16 compression & 19 rebound settings, 12.2 inches of 310 of wheel travel
- Brake Front
- Single hydraulic disc
- Brake Rear
- Single hydraulic disc
- Tires Front
- 90/100-21 51M
- Tires Rear
- 120/90-19 57M
Dimensions
- Length
- 2184 mm (86.0 in)
- Width
- 832 mm (32.8 in)
- Height
- 1270 mm (50.0 in)
- Ground Clearance
- 350 mm (13.8 in)
- Wheelbase
- 1486 mm (58.5 in)
- Dry Weight
- 101 kg (220 lbs)


