Cycling · Road bike · FiftyOne
FiftyOne Sika
A lightweight carbon road frameset from Dublin-based FiftyOne Bikes, designed for everyday performance riders with 40mm tyre clearance, aero-optimised tubes, and real-world geometry.
Released 2024Quick facts · not yet fully researched

Quick specs
- Material
- High-grade Toray carbon, NACA aero tube profiles
- Bottom Bracket
- T47 inboard threaded
- Tyre Clearance
- Up to 40mm
- Seatpost Diameter
- 27.2mm round
- Rear Axle / Hanger
- 12×142mm thru-axle, UDH rear hanger
- Frame Weight (size M)
- 690g (claimed)
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