Hummingbird Single Speed Folding Bike - Racing Green

The Single-Speed Hummingbird is the lightest folding bike in the world, handmade in UK.

Our single gear hub is a ultra light and smooth design with a carefully balanced gearing to ensure effortless riding. The ultimate purist bicycle - simple, fun and easy to use.

Specification:

• WEIGHT: 6.9kg - 15 Pounds
• GEARING: 60 gear inches, 4.80 meters development
• Gearing Combinations: 60 Gear Inches - Easy (Standard, 65 Gear Inches - Medium, 72 Gear Inches - Fast 
• Brake Levers: Aest CNC ultralight
• Cables: Jagwire ultra-slick cables with polished stainless steel inner cables
• Seatpost: Full Carbon with Titanium hardware
• Seatclamp: CNC design, diameter: 41mm
• Crankset: Shimano Alfine Hollowtech 170mm crank arm length
• Chainring: 48 teeth with integrated CNC chain guard
• Pedals: Quick release with sealed bearings
• Wheelset: Ultra-light aluminium alloy with butted spokes and sealed bearings ISO 349 mm wheel size
• Rear Sprocket: 13 teeth 9 spline design
• Grips: Ultra light EVA foam
• Handlebars: Full Carbon 520mm wide with a 50mm rise to allow adjustment of reach
• Seat: Ultra light Carbon rails with a 130mm width, high density padding and ergonomic cut-out for better comfort
• Brake calipers: Tektro R539 dual pivot design with quick release tabs for easier wheel removal 
• Bottom Bracket: Shimano Ultegra Press Fit sealed bearing unit
• Chain: YBN super light hollow pin design, nickel plated for longer service.
• Tyres: High performance Schwalbe Kojak with Kevlar bead, puncture protection and reflective band for high visibility 16" 32-349 tyre size
• Approximate Folded Dimensions: 117x60x20 Centimeters - 46x23x8 Inches