Overview — Classic two-stroke race DNA
The KAWASAKI KX 125 (144) 2005 Dirt Bike is a pure two-stroke motocross bike built for fast, agile riding. Loved by club racers and tuners, the 2005 KX125 features a lightweight chassis, long-travel suspension and a rev-happy 124cc liquid-cooled engine that responds brilliantly to tuning (big-bore 144cc kits are a common performance upgrade). FEPOWERSPORTS sources well-maintained examples and supports buyers across Europe, France, the UK and Thailand.
Key specifications (fact-checked)
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Model / Year: Kawasaki KX125 — 2005 (EU spec).
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Engine: 124 cc, liquid-cooled, 2-stroke single.
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Max Power: ≈ 41 PS / 30.2 kW ~11,500 rpm.
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Max Torque: ≈ 26.5 N·m ~10,500 rpm.
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Transmission: 6-speed (return).
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Dry Weight: ~87 kg (curb ~97 kg).
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Fuel Tank: ~8.2 L.
These factory specs explain why the 2005 KX125 is a favorite for riders who want a nimble, easily upgraded two-stroke platform.
Popular upgrades & 144 big-bore conversions
A common route to more torque and top-end for the 2005 KX125 is a 144cc big-bore kit (Athena, aftermarket porting and matched exhaust/ignition tuning). These conversions are popular among European and UK racers and are also requested by import buyers in Thailand who want an extra edge on tracks and dunes. If you plan a 144 conversion, make sure to match reed cages, pipe, ignition and jetting for reliability.
Parts availability & maintenance across regions
Genuine OEM parts and detailed parts diagrams are available across Europe via official Kawasaki parts catalogs and specialist suppliers (CMSNL, MotorcycleSpareParts, Bike-parts and local Kawasaki dealers). FEPOWERSPORTS can source OEM and aftermarket parts for French, UK and EU customers, and assist with international shipping to Thailand where required.
Who this bike is for
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Club racers and two-stroke purists who want a light, flickable 125.
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Tuners planning big-bore upgrades (144cc) or high-rev race builds.
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Riders in France, UK, Germany, Spain, Italy, Netherlands and Thailand looking to import a proven, serviceable two-stroke platform.
Why buy from FEPOWERSPORTS
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Inspected, described bikes — we prioritise condition and transparency.
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Pan-European support: shipping, paperwork and parts sourcing for France, UK and neighbouring countries.
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Expert guidance for common upgrades (144 big-bore kits, exhaust & ignition tuning).
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Competitive listings for riders searching “cheap Kawasaki KX125 near me” without sacrificing quality.
Call to action
Ready to ride or build? Browse FEPOWERSPORTS’ current KX125 inventory or contact our team for available 2005 Kawasaki KX125 (144) options, shipping to France, the UK or Thailand, and help sourcing big-bore kits and OEM parts.











