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The 2009 GAS GAS Halley 450 is a lightweight enduro bike designed for off-road enthusiasts seeking nimble trail performance. Its 443cc liquid-cooled single-cylinder engine delivers reliable power suited to intermediate and experienced riders tackling technical terrain. Known for its responsive handling and quality suspension setup with 230mm front and 220mm rear travel, this Spanish-built machine excels in demanding cross-country riding.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
The 2009 GAS GAS Halley 450 has a Capacity of 443.0 ccm (27.03 cubic inches).
The 2009 GAS GAS Halley 450 has a Power of 44.3 HP (32.6 kW).
The 2009 GAS GAS Halley 450 has a Gearbox of 6-speed.
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