Showing posts with label 449. Show all posts
Showing posts with label 449. Show all posts
Friday, February 7, 2014
YAMAHA YFZ450R 449 2011 2012
YAMAHA YFZ450R 449 (2011 - 2012) Description & History: The 2011 Yamaha YFZ450R is an ATV created for heavy-duty exploitation on the motocross circuits and is loaded with a heap of features to make it fast, balanced, reliable and easy to handle. While this is definitely not a toy for beginners, it can double as an off-road fun machine in case riding on rough forest trails is among your preferences.
However, its on the dirt track where the beast will shine: it sports a brawny 449cc engine loaded with titanium valves, with carefully tuned performance to deliver both power and torque right off idle, for hard accelerations and swift cornering.
Adjustable KYB suspensions and a 4-way adjustable ProTaper handlebar provide easy setup for different riders and a multitude of terrain types. Wides-spaced wheels ensure better stability in turns while the aluminium-steel chassis offers better mass centralization and good ground clearance. And with Yamahas proprietary fuel injection, precise throttling makes the 2011 YFZ450R a razor-sharp racing beast.
YAMAHA YFZ450R 449 2011 - 2012 Full Specifications:
Brand: YAMAHA, Model: YFZ, Type: YFZ450R 2011, Name Year: YFZ450R 449 2011 - 2012, Engine Type: 4-Stroke Single, Liquid Cooled w/Fan, Titanium 5-Valve DOHC, Displacement: 449 cm3, Bore Xstroke: 3.7x2.5 in OR 94.0x63.5 mm, Compression: 11.6:1, Horsepower: 0(-)/- KW(hp)/RPM, Torque: NaN/- lb-ft/RPM OR 0/- Nm/RPM, Fuel System: Yamaha Fuel Injection (YFI), 42mm, Gearbox: 5 speed, Clutch: Manual, Primary Drive: -, Final Drive: Sealed O-Ring Chain, Eccentric Adjustment, Frame: Aluminium, steel, Front Suspension: Independent double wishbone, w/Kashima coated piggy back shocks, High/Low speed compression, rebound and threaded preload adjustment, 9.8-in travel, Rear Suspension: Cast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel, Front Brake: Dual ventilated hydraulic disc, twin piston, Rear Brake: Wave-style ventilated hydraulic disc, twin piston, Length: 70.7 in OR 1796 mm, Width: 48.8 in OR 1240 mm, Seat Height: 31.9 in OR 810 mm, Wellbase: 50 in OR 1270 mm, Ground Clearance: 4.5 in OR 114 mm, Weight: 403 lbs OR 183 kg, Fuel Capacity: 2.6 gallons OR 2.6 L, Tyres Front: AT21x7-10 Radial, Tyres Rear: AT20x10-9 Radial.
Friday, January 24, 2014
Review Husqvarna TC 449
The timing and camshaft profiles are fully different as is that the compression ratio that has increased to 13:1 rather than 12:1 in the Enduro version. The electronic injection system still uses a 46mm Keihin throttle body but is fitted with one flap rather than the Enduro twin flap version to produce a sharper, more aggressive throttle response. Additionally, the TC449 is fitted with a twin mode turn on the handlebars, that permits access to 2 different fuel injection / ignition timing maps to produce a softer power delivery for low traction conditions.
The titanium exhaust system with carbon fibre tipped silencer has been developed specifically by Akrapovic and the five speed transmission has specific ratios to be used in MX. The suspension is provided by Kayaba with multi adjustable sealed cartridge front forks matched to a Kayaba absolutely adjustable rear shock.
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