KX450SR

449cc4-stroke1 cylLiquid-cooledElectric start

About the KX450SR

A limited-production, factory-style version of the KX450 with a ported head, titanium exhaust and upgraded suspension. For racers who want a near-factory bike off the showroom floor.

Family: KX450/KX450F
Model years: 2022 – 2026
Also known as: KX450 SR, KX 450SR, KX450 Special Racer, KX450 SR Special Racer Edition

13 sources

Generations

2025 – 2026

KX450SR

Claimed '2024–'. There was no 2024 KX450SR; it returned for 2025 on the 2024 KX450 platform (new engine, frame, Showa suspension). 2026 exists; 2027 not found.

Engine: 449cc
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel: Fuel injection

2 sources

2022 – 2023

KX450SR

Launched on the 2019-platform KX450 with a polished-port cylinder head, Pro Circuit titanium exhaust, revised fuel injection and KYB suspension.

Engine: 449cc
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel: Fuel injection

6 sources

Year specs

Year

Engine: 449 cc
Bore × stroke: 96 × 62.1 mm
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel system: Fuel injection
Horsepower: —
Torque: —
Dry weight: 108 kg
Wet weight: 112.6 kg
Seat height: 955 mm
Ground clearance: 340 mm
Wheelbase: 1486 mm
Fuel capacity: 6.2 L
MSRP: $13,699

engine_cc computed from the cited bore x stroke. motorcycle.com lists dry and wet weight without defining them.

1 source

motorcycle.com › detail

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