Dangerholm Unveils Sub-5-Kilo Scott Addict RC: A New Benchmark in Lightweight Road Bikes

Swedish custom bike builder Gustav Gullholm, known as Dangerholm, has achieved a significant milestone in the cycling world with the introduction of the Scott Addict RC Sub Five, a road bike weighing just 4.99 kilograms (11.0 pounds). This project aims to redefine the limits of lightweight bike construction while maintaining high performance and usability. Unlike many ultra-lightweight bikes that prioritize weight over functionality, the Scott Addict RC Sub Five is designed to be a fully operational road bike, equipped with modern features such as a 2×12 electronic drivetrain, disc brakes, and wide tires.

Outside OnlineUnder 5 kg and ready to race, a modern bike like no otherA 4.99kg bike with a full working groupset – does this one-off Scott Addict prove the UCI weight limit is defunct?

The Scott Addict RC Sub Five is built on the SCOTT Addict RC HMX-SL frame, which weighs 630.9 grams, complemented by a 282.4-gram fork. The bike's construction adheres to strict parameters set by Dangerholm, ensuring it meets both aesthetic and performance goals. Key specifications include:

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• Brakes: SRAM RED AXS (632.9 g)

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• Wheels: NonPlus Primaro Fusion hubs and Light Bicycle Airia 32 rims (866.7 g)

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• Tires: Schwalbe Aerothan 29 mm (342.5 g)

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• Saddle: Gelu K3 (39.2 g)

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Dangerholm emphasizes that this bike is not merely an exhibition piece; it is built for real-world performance, demonstrating that extreme lightness can coexist with reliability and functionality.

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The introduction of the Scott Addict RC Sub Five has sparked discussions about the relevance of the UCI's minimum weight limit of 6.8 kg for competitive road bikes. As the cycling industry increasingly embraces aerodynamic designs, the focus on lightweight bikes has diminished. However, Dangerholm's creation serves as a reminder that the pursuit of lightness remains viable, especially when combined with modern technology and design principles.

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While the Scott Addict RC Sub Five has garnered attention for its innovative approach, some critics argue that the extreme focus on weight may lead to compromises in durability and comfort. However, Dangerholm counters this by highlighting the bike's robust construction and performance capabilities, asserting that a well-designed lightweight bike can still provide comfort and control.

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• “The SCOTT Addict RC SUB5 does not give up the double chainring, does not cut back on braking, does not revert to narrow tires, nor does it hide behind a compromise assembly.” — Gustav Gullholm, Dangerholm

Under 5 kg and ready to race, a modern bike like no other

• “In this latest project, Scott and Dangerholm stress that this bike marks a turning point in weight saving, where every component specified is also reliable, despite its low weight.” — Scott representative

A 4.99kg bike with a full working groupset – does this one-off Scott Addict prove the UCI weight limit is defunct?

As the cycling community continues to explore the boundaries of bike design, Dangerholm's latest project may influence future developments in lightweight road bikes. The ongoing dialogue regarding UCI regulations and the balance between weight and performance will likely shape the direction of competitive cycling in the coming years.

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