Bespoke Level Quality. Stock Bike Convenience.
Founded by ex-pro Aidan Duff, FiftyOne Bikes started out creating full-custom handmade framesets. These were no-holds-barred frames tailored to individual riders for optimal handling and ride quality. The unflinchingly high standards set with FiftyOne's custom work have been carried over to the stock framesets: the Sika and the Assassin. The most advanced manufacturing techniques are used to create unbeatable bikes designed for enthusiast riders for real-world riding conditions – not simply replicating the bikes used by the pro peloton.
Gravel Racing / Bikepacking
A carbon gravel frameset at the bleeding edge of progressive frame design. The FiftyOne Assassin is here to help you tackle all-terrain ultras, gravel races or just your local trails.
Adjustable geometry and a huge array of mounting points mean you can tweak the Assassin to suit whatever your next cycling challenge may be.
Endurance Road
The optimal balance of light weight, slippery aero design and stiff carbon construction – but with a riding position that works for riders outside of the World Tour circuit.
The geometry of the Sika is ideal for ultra-distance road events, or simply club riding with a more comfortable stack height.
Available As Custom Complete Builds
Get in touch with the form below to discuss your riding needs and component requirements.
Book in with RC Custom bike fitting to dial in your position and select the perfect components for your build.