Yamaha YZ450F Specs

2011 - 2022 • 2 variants

First introduced in 2011, the Yamaha YZ450F is a motocross bike that has seen 2 variants through 2022. The engine is a titanium-valves at 449.0 cc.

About the Yamaha YZ450F

Yamaha introduced the YZ450F as part of their Cross / motocross range, with production running from 2004 to 2023. This technical reference page documents the full specification sheet for the Yamaha YZ450F, including engine displacement, power and torque figures, frame and suspension geometry, braking systems, and overall dimensions. Select a model year above to view year-specific technical data. Specifications are compiled from official manufacturer sources.

Yamaha YZ450F by Year

2022 Yamaha YZ450F View specs →

2011 Yamaha YZ450F View specs →

Spec Evolution

How key specs changed across production years.

Specification	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Oil Capacity (Quarts)	-	-	-	-	-	-	-	0.08 quarts	-	-	-	-	-	-	-	-	-	-	1.06 US quarts	1.06 US quarts
Oil Capacity (l)	-	-	-	-	-	-	-	1.20 litres	-	-	-	-	-	-	-	-	-	-	1.00 litres	1.00 litres
Ground Clearance (mm)	371 mm	371 mm	373 mm ↑	373 mm	373 mm	373 mm	381 mm ↑	381 mm	386 mm ↑	386 mm	386 mm	335 mm ↓	335 mm	335 mm	335 mm	335 mm	330 mm ↓	330 mm	330 mm	351 mm ↑
Ground Clearance (in.)	14.6 inches	14.6 inches	14.7 inches ↑	14.7 inches	14.7 inches	14.7 inches	15.0 inches ↑	15.0 inches	15.2 inches ↑	15.2 inches	15.2 inches	13.2 inches ↓	13.2 inches	13.2 inches	13.2 inches	13.2 inches	13.0 inches ↓	13.0 inches	13.0 inches	13.8 inches ↑
Fuel Control	DOHC	SOHC	DOHC	DOHC	DOHC	DOHC	DOHC	DOHC	DOHC	DOHC	DOHC	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)	Double Overhead Cams/Twin Cam (DOHC)
Engine Type	Single cylinder	Single cylinder, four-stroke	V2, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke	Single cylinder, four-stroke
Displacement (ci)	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches	-	-	27.44 cubic inches	-	27.44 cubic inches	27.40 cubic inches ↓	27.40 cubic inches	27.40 cubic inches	27.40 cubic inches
Displacement (cc)	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	449.00 cc	-	-	449.70 cc	-	449.7 cc	449.0 cc ↓	449.0 cc	449.0 cc	449.0 cc
Comments	-	-	-	-	-	-	-	-	-	-	4500 Ah Lithium Polymer battery. Range 75km. XOR is an abbreviation of Xtraordinary Object on Road. Foldable bike. French brand.	-	-	-	-	-	-	Launch control. Power Tuner via smartphone.	Launch control. Power Tuner via smartphone.	Traction control. Launch control. Power Tuner via smartphone.
Bore x Stroke (mm)	95.0 x 63.4 mm	95.0 x 63.4 mm	95.0 x 63.4 mm	95.0 x 63.4 mm	95.0 x 63.4 mm	95.0 x 63.4 mm	97.0 x 60.8 mm ↑	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.8 mm	97.0 x 60.9 mm	97.0 x 60.9 mm	97.0 x 60.9 mm	97.0 x 60.8 mm
Bore x Stroke (in,)	3.7 x 2.5 inches	3.7 x 2.5 inches	3.7 x 2.5 inches	3.7 x 2.5 inches	3.7 x 2.5 inches	3.7 x 2.5 inches	3.8 x 2.4 inches ↑	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches	3.8 x 2.4 inches
Brakes - Front Diameter (mm)	250 mm	250 mm	250 mm	250 mm	250 mm	245 mm ↓	250 mm ↑	250 mm	250 mm	250 mm	250 mm	250 mm	250 mm	250 mm	250 mm	-	-	-	-	-
Brakes - Front Diameter (in.)	9.8 inches	9.8 inches	9.8 inches	9.8 inches	9.8 inches	9.6 inches ↓	9.8 inches ↑	9.8 inches	9.8 inches	9.8 inches	9.8 inches	9.8 inches	9.8 inches	9.8 inches	9.8 inches	-	-	-	-	-
Frame Type	-	-	-	Wet multi-plate	-	-	-	-	Hybrid steel and aluminum frame with a Controlled- Fill aluminum subframe and cast aluminum swingarm	-	Aluminum Bilateral Beam frame	Aluminum Bilateral Beam frame	Aluminum Bilateral Beam frame	Semi double cradle	Bilateral beam frame	Bilateral beam frame	Bilateral beam frame	Bilateral beam frame, aluminum	Bilateral beam frame, aluminum	Bilateral beam frame, aluminum
Seat Height	995 mm / 39.2 in.	996 mm / 39.2 in. ↑	998 mm / 39.3 in. ↑	988 mm / 38.9 in. ↓	988 mm / 38.9 in.	988 mm / 38.9 in.	998 mm / 39.3 in. ↑	998 mm / 39.3 in.	1,001 mm / 39.4 in. ↓	1,001 mm / 39.4 in.	1,001 mm / 39.4 in.	975 mm / 38.4 in. ↑	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	965 mm / 38.0 in. ↓	965 mm / 38.0 in.	965 mm / 38.0 in.	965 mm / 38.0 in.
Dry Weight	97 kg / 213.8 lbs	-	99.8 kg / 220.0 lbs	99.8 kg / 220.0 lbs	99.3 kg / 219.0 lbs ↓	-	-	-	-	210.5 kg / 464.1 lbs	59 kg / 130.1 lbs ↓	-	-	-	-	-	-	-	-	-
Brakes - Front	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc. Hydraulic	Single disc. Hydraulic disc. Hydraulic disc.	Single disc. Hydraulic disc. Hydraulic disc.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.
Wheelbase	1,485 mm / 58.5 in.	-	1,495 mm / 58.9 in.	1,494 mm / 58.8 in.	1,494 mm / 58.8 in.	1,494 mm / 58.8 in.	1,491 mm / 58.7 in.	1,491 mm / 58.7 in.	1,491 mm / 58.7 in.	1,491 mm / 58.7 in.	1,491 mm / 58.7 in.	1,481 mm / 58.3 in. ↓	1,481 mm / 58.3 in.	1,481 mm / 58.3 in.	1,481 mm / 58.3 in.	1486 mm / 58.5 in. ↑	1486 mm / 58.5 in.	1486 mm / 58.5 in.	1486 mm / 58.5 in.	1481 mm / 58.3 in. ↓
Engine Detail	-	-	-	-	-	-	-	Titanium valves	Titanium valves	-	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves	Titanium-valves
Brakes - Rear	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc	Single disc. Hydraulic	Single disc	Single disc	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.	Single disc. Hydraulic.
Fuel Capacity	-	6.81 litres / 1.80 gallons	7.00 litres / 1.85 gallons ↑	6.81 litres / 1.80 gallons ↓	6.81 litres / 1.80 gallons	6.81 litres / 1.80 gallons	6.05 litres / 1.60 gallons ↓	6.17 litres / 1.63 gallons ↑	6.06 litres / 1.60 gallons ↓	6.06 litres / 1.60 gallons	6.06 litres / 1.60 gallons	7.57 litres / 2.00 gallons ↑	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	6.06 litres / 1.60 US gallons ↓	6.06 litres / 1.60 US gallons	6.06 litres / 1.60 US gallons	6.06 litres / 1.60 US gallons	6.06 litres / 1.60 US gallons
Suspension - Front	Telescopic fork	48mm Kayaba inverted telescopic fork w/adjustable compression and rebound damping	Upside-down telescopic fork	Telescopic Fork, coil spring/oil damper	Speed-Sensitive System inverted fork	Speed-Sensitive System inverted fork	KYB® Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel	KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel	KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel	KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel	KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel	KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2 in travel	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable	KYB Speed-Sensitive System, inverted fork: fully adjustable
Suspension - Rear	Swingarm (linked type monocross)	Kayaba single shock w/adjustable preload, compression and rebound damping and separate hi/lo-speed compression adjuster	Swingarm (linked type monocross)	Swingarm (link, suspension), coil spring/gas-oil damper,	Fully adjustable single shock	Fully adjustable single shock	KYB® Fully adjustable single shock; 12.4-in travel	KYB Fully adjustable single shock	KYB Fully adjustable single shock	KYB Fully adjustable single shock	KYB Fully adjustable single shock	Monoshock, adjustable preload and rebound damping, 12.4 in travel	Monoshock, adjustable preload and rebound damping	Monoshock, adjustable preload and rebound damping	KYB® single shock; fully adjustable	KYB® single shock; fully adjustable	KYB® single shock; fully adjustable	KYB® single shock; fully adjustable	KYB® single shock; fully adjustable	KYB® single shock; fully adjustable
Fuel System	-	Carburettor	Carburettor. Keihin FCR37H	Carburettor	-	Carburettor. Keihin FCR MX39	Injection. Fuel Injection (FI), Keihin® 44mm ↑	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm	Injection. Mikuni® fuel injection, 44mm ↑	Injection. Mikuni® fuel injection, 44mm ↓	Injection. Mikuni® fuel injection, 44mm	Injection. Mikuni® fuel injection, 44mm	Injection. Mikuni® fuel injection, 44mm	Injection. Mikuni® fuel injection, 44mm
Colours	Blue	Team Yamaha Blue/White	-	-	Team Yamaha Blue/White, White/Red	Team Yamaha Blue/White, White/Red	White/Red, Team Yamaha Blue/White	White/Red, Team Yamaha Blue/White)	Blue/White, White/Red	Team Yamaha Blue/White, White/Red	Team Yamaha Blue/White, White/Red	Team Yamaha Blue/White, White/Red	Team Yamaha Blue/White, 60th Anniversary Yellow	Blue/white	Blue/white, White	Team Yamaha Blue, White	Team Yamaha Blue, Gray	Team Yamaha Blue	Team Yamaha Blue	Team Yamaha Blue
Clutch	-	-	Wet, multiple-disc	-	-	-	-	-	Multiplate, wet	-	No clutch	-	Wet multi-disc	Wet multi-disc	Multiplate wet clutch	Multiplate wet clutch	Multiplate wet clutch	Multiplate wet clutch	Multiplate wet clutch	Multiplate wet clutch
Final Drive	-	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain	Chain (final drive)	Chain (final drive)	Chain (final drive)	Chain (final drive)	Chain (final drive)
Height	1,303 mm / 51.3 in.	996 mm / 39.2 in. ↑	1,300 mm / 51.2 in. ↓	1,306 mm / 51.4 in.	1,306 mm / 51.4 in.	1,306 mm / 51.4 in.	1,311 mm / 51.6 in.	1,311 mm / 51.6 in.	1,311 mm / 51.6 in.	1,311 mm / 51.6 in.	1,311 mm / 51.6 in.	1,290 mm / 50.8 in. ↓	1,290 mm / 50.8 in.	1,290 mm / 50.8 in.	1,290 mm / 50.8 in.	1285 mm / 50.6 in. ↑	1275 mm / 50.2 in. ↓	1275 mm / 50.2 in.	1285 mm / 50.6 in. ↑	1275 mm / 50.2 in. ↓
Rims	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Dunlop® MX3S® tyres	Dunlop® MX3S® tyres ↓	Dunlop® MX33® tyres ↑	Dunlop® MX33® tyres	-	Dunlop® Geomax MX33 tires
Length	2,171 mm / 85.5 in.	2,172 mm / 85.5 in.	2,197 mm / 86.5 in. ↑	2,192 mm / 86.3 in.	2,195 mm / 86.4 in.	2,195 mm / 86.4 in.	2,192 mm / 86.3 in.	2,192 mm / 86.3 in.	2,195 mm / 86.4 in.	2,195 mm / 86.4 in.	2,195 mm / 86.4 in.	2,174 mm / 85.6 in. ↓	2,174 mm / 85.6 in.	2,174 mm / 85.6 in.	2,174 mm / 85.6 in.	2184 mm / 86.0 in. ↑	2184 mm / 86.0 in.	2184 mm / 86.0 in.	2184 mm / 86.0 in.	2179 mm / 85.8 in. ↓
Compression Ratio	12.5:1	12.5:1	12.3:1 ↓	12.3:1	12.3:1	12.3:1	12.5:1 ↑	12.5:1	12.5:1	12.5:1	12.5:1	12.5:1	12.5:1	12.5:1	12.5:1	12.8:1 ↑	13.0:1 ↑	13.0:1	13.0:1	13.0:1
Warranty	-	-	-	-	-	-	-	30 Day (Limited Factory Warranty)	30 Day (Limited Factory Warranty)	30 Day (Limited Factory Warranty)	30 Day (Limited Factory Warranty)	30 Day Limited Factory Warranty	30 Day Limited Factory Warranty	-	-	-	30 Day (Limited Factory Warranty)	30 Day Limited Factory Warranty	30 Day Limited Factory Warranty	30 Day Limited Factory Warranty
Wet Weight	-	-	-	-	-	108.0 kg / 238.0 lbs	111.1 kg / 245.0 lbs ↑	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	108.9 kg / 240.0 lbs ↓
Tyres - Front	80/100-21	80/80-21	80/90-R21	80/80-M21	80/80-M21	80/80-21	80/100-21	80/100-21	80/100-21	21/7-10 ↓	100/80-10 ↑	-	80/100-21	80/100-21	80/100-21	80/100-21	80/100-21	80/100-21	80/100-21	80/100-21
Engine Lubrication	-	-	Dry sump	-	-	-	-	Dry sump	Wet sump	-	-	-	Wet sump	Wet sump	Wet sump	Wet sump	Wet sump	Wet sump	Wet sump	Wet sump
Width	827 mm / 32.6 in.	828 mm / 32.6 in. ↑	815 mm / 32.1 in. ↓	826 mm / 32.5 in. ↑	826 mm / 32.5 in.	826 mm / 32.5 in.	823 mm / 32.4 in. ↓	823 mm / 32.4 in.	826 mm / 32.5 in. ↑	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	826 mm / 32.5 in.	831 mm / 32.7 in. ↑
Tyres - Rear	110/90-19	110/90-19	110/90-19	110/90-M19	120/80-M19 ↑	120/80-19	120/80-19	120/80-19	120/80-19	120/80-19	120/80-19	120/80-19	120/80-19	120/80-19	120/80-19	-	-	-	-	-
Rake	-	27.2°	-	-	26.0°	-	-	-	-	28.0°	28.0°	28.0°	28.0°	28.0°	27.3° ↓	27.3°	27.3°	27.0° ↓	26.9° ↓	26.9°
Lighting system	-	-	-	-	-	-	-	Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light	Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light	-	LED lights	-	-	-	-	-	-	-	-	-
Wheel Travel - Front	300 mm / 11.8 in.	300 mm / 11.8 in.	300 mm / 11.8 in.	300 mm / 11.8 in.	300 mm / 11.8 in.	300 mm / 11.8 in.	-	-	310 mm / 12.2 in.	-	-	-	310 mm / 12.2 in.	310 mm / 12.2 in.	310 mm / 12.2 in.	310 mm / 12.2 in.	310 mm / 12.2 in.	310 mm / 12.2 in.	310 mm / 12.2 in.	310 mm / 12.2 in.
Wheel Travel - Rear	315 mm / 12.4 in.	318 mm / 12.5 in. ↑	125 mm / 4.9 in. ↓	315 mm / 12.4 in. ↑	312 mm / 12.3 in. ↓	312 mm / 12.3 in.	-	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	315 mm / 12.4 in.	318 mm / 12.5 in. ↑	318 mm / 12.5 in.	318 mm / 12.5 in.	315 mm / 12.4 in. ↓
Ignition	-	-	CDI	Digital CDI	CDI	CDI	TCI	CDI	TCI	TCI	TCI	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition	TCI: Transistor Controlled Ignition
Power-to-Weight Ratio	-	-	-	-	-	-	-	-	-	0.1143 HP/kg	0.1819 HP/kg ↑	-	-	-	-	-	-	-	-	-
Starter	-	-	Kick	-	-	-	-	Electric	Electric	Electric	Electric	Electric	Electric	Electric	Electric	Electric	Electric	Electric	Electric	Electric
Valve System	5	1 ↓	-	-	-	5	4 ↓	4	4	-	4	4	4	4	4	4	4	4	4	4

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