Cross - Motocross · 2026

Yz450F 70Th Anniversary Edition

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Technical Overview

2026 Yamaha Yz450F 70Th Anniversary Edition Technical Analysis & Specification Breakdown

At the heart of the 2026 Yamaha Yz450F 70Th Anniversary Edition cross - motocross motorcycle, Yamaha pairs a 450 cc engine architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 97.0mm × 60.8mm with a 13.0:1 compression ratio.

On the scales, the Yz450F 70Th Anniversary Edition measures 243 kg (536 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 38 mm (1.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 58 mm (2.3 in) wheelbase engineered for quick, flickable steering geometry. The 1.6-liter (0.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Standover Height

38 mm (1.5 in)

Engine

Displacement 450 cc

Engine Details 450cc liquid-cooled DOHC 4-stroke; 4 titanium valves

Compression 13.0:1

Bore x Stroke 97.0mm × 60.8mm

Ignition TCI / Electric

Lubrication Wet sump

Transmission

Gearbox Constant-mesh 5-speed; multiplate wet clutch

Final Drive Chain

Chassis

Trail 4.8 in

Wheelbase 58.1 in

Ground Clearance 13.6 in

Dimensions & Weight

Weight incl. 243 lb

Seat Height 38.0 in

Fuel Capacity 1.6 gal

Other

Starter TCI / Electric

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Seat Height

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Transmission

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