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The HPS Domestique 1-21 framesets are handmade by master frame builders to HPS’ exacting specifications, with the highest quality carbon fiber used. The WATT ASSIST System was fine-tuned working with one of Formula 1’s leading engineers, developing a system that harnesses the power of an ultra-light battery and a small, lightweight motor positioned above the bottom bracket with incredible precision. Campagnolo, who supply the EKAR group set, participated in road tuning, providing their knowledge and their own product manager and tester, Nicolò Martinello, alongside HPS’ Phil Deignan, former professional for Team Sky who has been the lead development test rider in the project since the beginning. Campagnolo with the complete Ekar group set, supply the Ergopower controls, the discs, the calipers, the chain and also the Shamal Carbon wheels. The reliability of the system is guaranteed by our carefully selected engineering partners who design and build components that are used in the aeronautical and motorsports industries. Furthermore, the production process meets the highest quality standards, and each piece is rigorously tested in our laboratories.

• We selected components that are used in the aeronautical and motorsports industries
• Two batteries are available – The standard, 193 Wh (1.2 kg) and our flight safe battery, 85 Wh (720 gram)
• Our ‘Launch Edition’ bike is limited to 21 bikes only.