The best lightweight bikes can now give you a great mix of low weight and aerodynamic performance, as shown by our reviews.
Gone are the days when you had to sacrifice efficiency and on-the-flat speed for an easier ride in the hills, with many lightweight bikes featuring among the best road bikes. The majority of these bikes and the components with which they’re fitted give you performance to match the best aero bikes while still coming in below the UCI’s 6.8kg weight limit.
Quick list: Best lightweight bikes
2. Cannondale LAB71 SuperSix Evo
The new SuperSix EVO is more aero than its predecessor and the top-spec LAB71 frame is lighter too.
4. Canyon Ultimate CF SLX 8.0
A cheaper option for a light-ish lightweight bike, the Canyon Ultimate CF SLX 8.0 offers impressive performance with a quality spec.
5. Specialized S-Works Aethos 2
The updated Aethos 2 is as light as its predecessor but has a more relaxed geometry, with space for 35mm tyres.
Last updated 19th of November 2025 This guide was last reviewed in November 2025 to update our bike choices and add the Aethos 2 as the best lightweight endurance bike.
Best lightweight bikes
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Best lightweight bike
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