2009 RM-Z450

SPECIFICATIONS

Engine and Transmission
Engine: 4-stroke, liquid-cooled, DOHC
Bore Stroke: 96.0 mm (3.780 in) x 62.1 mm (2.445 in)
Compression Ratio: 12.2 : 1
Fuel System: Fuel injection
Lubrication: Semi Dry sump
Ignition: Electronic ignition (CDI)
Transmission: 5-speed constant mesh
Final Drive: D.I.D 520MXV, 114 links

Chassis and Dimensions
Suspension Front: Telescopic, coil spring, oil damped
Suspension Rear: Link type, coil spring, oil damped
Brakes Front: Disc brake
Brakes Rear: Disc brake
Tires Front: 80/100-21
Tires Rear: 110/90-19
Overall Length: 2185 mm (86.0 in)
Overall Width: 830 mm (32.7 in)
Overall Height: 1260 mm (49.6 in)
Seat Height: 955 mm (37.6 in)
Ground Clearance: 350 mm (13.8 in)
Wheelbase: 1480 mm (58.3 in)
Curb Weight: 112 kg (247 lbs)
Fuel Tank Capacity: 6.2 L (1.6/1.4US/Imp gal)

Features
Engine
# Electronic Fuel Injection offers better roll on power and strong low-to-mid range power. KEIHIN throttle body specifically designed for motocross. Fuel is delivered via an internal fuel pump and is a battery-less system
# 5-Speed Transmission makes the RM-Z450 versatile for various terrain conditions and features a link type shifting mechanism
# Intake port angle and cam timing result in reduced intake resistance and heightened intake efficiency. Exhaust port and cam timing are designed to regulate exhaust pulses for maximum engine performance
# Battery-less fuel injection system features a single-phase all-charging system with which the magneto supplies all of the necessary power
# 18-pin magneto-rotor senses feedback on crankshaft position, rotation speed and stroke which is fed back to the ECU to calculate optimum injection and ignition timings.
# KEIHIN fuel pump located inside the fuel tank provides stable pressure delivery to operate the fuel injection system
# Combustion chamber designed for strong low-to-mid range response as well as top-end pull. Narrower intake and exhaust valve angle guides along with increased squish areas improve air/fuel mixing and faster flame-propagation speed when mixture ignites
# Semi-dry-sump lubrication system features separate oil chambers for the transmission and crankshaft using the transmission as the oil sump, allowing low crankshaft placement, reduced engine height and a low center of gravity
Chassis
# Aluminum-alloy twin spar frame is lightweight and has optimum rigidity balance for incredibly agile handling and unmatched performance over bumps
# Aluminum fuel tank houses a KEIHIN fuel pump for optimum performance and a factory bike look
# Slim riding position opens up the cockpit for additional room to allow the rider to actively take control of the machine
# Showa cartridge-style front fork is fully adjustable for rebound, compression and preload settings and designed for reduced weight and improved shock absorption
# Showa-brand rear shock absorber designed to deliver a controlled feel and increased bottoming resistance
# Aluminum-alloy swingarm for reduced weight and maximum terrain-traversing performance over bumps
# Front fender incorporates a sloped-down shape to efficiently guide wind to the front number plate air ducts for improved cooling performance. Rear fender incorporates air intakes on both sides for heighten intake efficiency
# 2-tone molded-plastic radiator shrouds give the RM-Z450 a slim feel and stylish look for 2009 while also complimenting an all-new graphics design and color way
# Hot start lever is located on the right hand side of the handlebar for easy operation while holding the clutch
# Race inspired brake rotors provide better cooling performance and increased mud deflection in muddy conditions