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2015 Yamaha YZ450F

2015 Yamaha YZ450F
White/Red
MSRP: $8,590.00
Manufacturer: Yamaha
Condition: New

Description

  • YZ450F’s revolutionary rearward-slanted-cylinder design is an innovative approach to achieve unmatched mass centralization. Concentrating the motorcycle’s heaviest components (engine mass, fuel tank, exhaust system, and airbox) toward the center of the machine, as well as the rotational mass of the valve train, helps achieve superior, nimble handling.
  • The 4-titanium-valve cylinder head is matched to a fuel injection system that provides superb power feeling across the rpm range. The adjustable fuel injection system uses a 44mm throttle body fed by a high pressure battery-less electric pump to ensure optimum fuel atomization and air/fuel calibration for a wide range of riding conditions. The YZ450F instantly adapts to changing air/fuel mixtures depending on altitude and temperature, for an engine that delivers no matter what conditions.
  • The aluminum Bilateral Beam frame features new motor mounts to improve the machines handling character and offers a superb rigidity balance and, with class-leading front and rear suspension, provides unmatched lightweight handling and cornering.
  • Industry-leading suspension with refinements to internal and external components and settings result in superior handling.
  • Accessory GYTR® Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions in a matter of seconds with the push of a few buttons.

Specifications

Engine

Type
449.7cc liquid-cooled DOHC 4-stroke; 4 titanium valves
Bore x Stroke
97.0 x 60.8mm
Compression Ratio
12.5:1
Fuel Delivery
Yamaha Fuel Injection (YFI), Keihin® 44mm
Ignition
TCI: Transistor Controlled Ignition
Transmission
Constant-mesh 5-speed; multiplate wet clutch
Final Drive
Chain
 

Chassis

Suspension / Front
KYB® Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel
Suspension / Rear
Monoshock, adjustable preload and rebound damping, 7.5-in travel
Brakes / Front
Hydraulic single disc brake, 250mm
Brakes / Rear
Hydraulic single disc brake, 245mm
Tires / Front
80/100-21 Dunlop® MX52-FA
Tires / Rear
120/80-19 Dunlop® MX52
 

Dimensions

L x W x H
85.6 x 32.5 x 50.8 in
Seat Height
38.4 in
Wheelbase
58.3 in
Ground Clearance
13.2 in
Fuel Capacity
2.0 gal
Wet Weight***
245 lb
 

Other

Warranty
30 Day (Limited Factory Warranty)
 

Features

Top Features:

  • YZ450F’s revolutionary rearward-slanted-cylinder design is an innovative approach to achieve unmatched mass centralization. Concentrating the motorcycle’s heaviest components (engine mass, fuel tank, exhaust system, and airbox) toward the center of the machine, as well as the rotational mass of the valve train, helps achieve superior, nimble handling.
  • The 4-titanium-valve cylinder head is matched to a fuel injection system that provides superb power feeling across the rpm range. The adjustable fuel injection system uses a 44mm throttle body fed by a high pressure battery-less electric pump to ensure optimum fuel atomization and air/fuel calibration for a wide range of riding conditions. The YZ450F instantly adapts to changing air/fuel mixtures depending on altitude and temperature, for an engine that delivers no matter what conditions.
  • The aluminum Bilateral Beam frame features new motor mounts to improve the machines handling character and offers a superb rigidity balance and, with class-leading front and rear suspension, provides unmatched lightweight handling and cornering.
  • Industry-leading suspension with refinements to internal and external components and settings result in superior handling.
  • Accessory GYTR® Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions in a matter of seconds with the push of a few buttons.

New for 2015:

  • Stiffer fork springs, new valving and a new fork outer tube improve performance in the mid-to-end stroke and aid fork bottoming resistance.
  • Quick-release quarter-turn Dzus® air box fasteners for tool-less access to the air filter.
  • A new steel bottom engine bracket has been designed for increased rigidity balance and damping feel.
  • New Dunlop® MX52 tires offer excellent traction front and rear, especially on hard surfaces.

Engine:

  • The high-performance ECU provides great bottom end torque plus delivers a strong feeling of power from 3rd gear up while the gear ratios lengthen the powerband and heighten the feeling of power in 2nd and 3rd gear.
  • The valve mechanisms and cylinder head feature specs that take performance to the next level, resulting in added power and outstanding performance.
  • The exhaust pipe has an innovative layout, circling the cylinder, giving the exhaust pipe proper length for an excellent exhaust-pulse effect. At the same time, the exhaust pipe has three different diameters throughout the exhaust tract, bringing out excellent power characteristics. This layout allows the silencer to be behind the side panel closer to the middle of the bike which centralizes the mass for superior handling.
  • The compact wet sump lubrication system with piston cooler spray jet eliminates the need for an oil tank, reducing engine weight. The water pump employs a plastic resin impeller for further weight reduction. The reduced size of the crankcase enabled by this lubrication system design is a major factor in making it possible to mount the 450cc engine on the compact frame to deliver precise and instinctive handling.
  • The accessory GYTR Power Tuner can simplify the work of adjusting fuel injection volume and ignition timing settings to fit personal preferences or track conditions.

Chassis/Suspension:

  • A Bilateral Beam frame is adopted and the overall dimensions are roughly the same as the frame of the 2013 YZ250F. This gives the YZ450F a compact chassis that provides the most instinctive handling in the 450 motocross class.
  • The aluminum muffler is positioned closer to the machine’s center of gravity as it is almost completely hidden by the side number plate. The layout allows a shorter, lighter sub frame and also contributes to mass centralization for lightweight handling feel.
  • The front suspension has proven KYB® air-oil separated forks with stiffer fork springs, new valving and a new fork outer tube to improve performance in the mid-to-end stroke and aid fork bottoming resistance. The rear suspension also features settings optimized for ideal damping characteristics to match the chassis dimensions.
  • The large diameter 22mm front axle and top triple clamp provide rigidity for unmatched handling and front end feel. The handlebar mounts are rubber mounted to improve comfort and reduce handlebar vibration.
  • The fuel tank and air cleaner box give the machine a slimmer feeling between the legs as well as positions the fuel tank mass closer to the center of the bike which improves handling feel. Furthermore, the air box can be accessed without removing the fuel tank for easy serviceability of the large air cleaner element.
  • A narrow radiator design contributes to slimming down the radiator panel area.

Additional Features:

  • Riders have a choice of two color options: Team Yamaha Blue/ White or White/Red.

All inventory listed is subject to availability and prior sale. Manufacturer's Suggested Retail Price (MSRP) if shown for a vehicle excludes set-up, freight, taxes, title, licensing or other dealer charges, and is subject to change. Individual prices may vary. Please request a quote for specific pricing.

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