Key performance
Technical specifications
- Power
- 55.0 ch (40.5 kW) → 59.0 ch (43.4 kW)
- Rear suspension
- Mono-amortisseur, déb : 317 mm → Mono-amortisseur, déb : 315 mm
- Fuel capacity
- 6.00 L → 6.20 L
- Weight
- 112.00 kg → 109.00 kg
- New price
- 9 799 € → 10 399 €
Engine
- Displacement
- 450 cc
- Power
- 59.0 ch (43.4 kW)
- Engine type
- Monocylindre, 4 temps
- Cooling
- liquide
- Compression ratio
- 13 : 1
- Bore × stroke
- 97 x 60.8 mm
- Valves/cylinder
- 4
- Camshafts
- 2 ACT
- Fuel system
- Injection Ø 44 mm
Chassis
- Frame
- Semi double berceau en alu
- Gearbox
- boîte à 5 rapports
- Final drive
- Chaîne
- Front suspension
- Fourche téléhydraulique inversée Ø nc, déb : 310 mm
- Rear suspension
- Mono-amortisseur, déb : 315 mm
Brakes
- Front brakes
- Freinage 1 disque Ø 270 mm, étrier 2 pistons
- Rear brakes
- Freinage 1 disque Ø 240 mm, étrier simple piston
- Front tyre
- 80/100-21
- Rear tyre
- 120/80-19
Dimensions
- Seat height
- 965.00 mm
- Fuel capacity
- 6.20 L
- Weight
- 109.00 kg
- New price
- 10 399 €
Overview
How do you evolve a legend without betraying its DNA? Yamaha chose the path of purity for its 2023 YZ 450 F, focusing not on stifling technological complexity, but on the rider's feel. This approach, almost philosophical for a motocross bike, gives birth to a machine where every gram removed and every Newton-meter gained are dedicated to a single idea: the fusion between man and beast. The Monster Energy Racing Edition version, with its black bodywork striped with electric blue, is just the icing on the cake, a striking aesthetic finish that doesn't change the mechanics. You have to spend a little more for this factory makeover, which remains a purely cosmetic argument.

Beneath this aggressive fairing beats a radically redesigned heart. The 450 cm³ single-cylinder engine has been refined, compacted, and lightened, gaining 5% of power and a redline raised by 500 rpm. The power curve is more linear, easier to exploit, especially for an amateur rider who doesn't have the wrist of a champion. With only 109 kg fully fueled, or 2.3 kg less than before, and a 6.2-liter tank, the Yamaha ranks among the lightest in its class. This is not just a specification sheet; it’s an immediate sensation on the track: the bike changes direction with disconcerting agility, and seems to disappear beneath you when you need to maneuver to attack a corner or control a bump.
The chassis, a redesigned aluminum twin-spar frame, offers controlled rigidity, while the suspension benefits from new settings and valves. The ergonomics have been scrutinized: narrower fairing, flatter seat, and better-integrated tank. Everything is designed so that the rider, whether a professional or an enlightened amateur, can move without restraint. Yamaha has even integrated a three-mode traction control system and a launch control system, discreet electronic aids that can secure the exit from a sliding corner without infantilizing the ride.
Who is this 59 horsepower beast for? Clearly for the demanding motocross rider, whether competing in a club or national competition, who is looking for a ready-to-use, precise, and incredibly lively machine. Faced with a KTM 450 SX-F or a Honda CRF450R, the YZ focuses on maneuverability and progressive power rather than brute aggression. Its weakness? A price that flirts with €10,400, a significant investment for a machine dedicated to a single use. But for those who live for the full-throttle circuits, every euro is justified by this feeling of absolute control. The YZ 450 F 2023 is not a revolution, it is a perfect, accomplished evolution. It proves that progress sometimes comes through simplicity and listening to the rider.
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