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Birdy JK11 Dropbar | 11-Speed | Performance Foldable Bike
A special collaboration between Mighty Velo and Joseph Kuosac, the JK11 Dropbar not only features a carbon wheelset that enhances its acceleration, responsiveness, and overall speed, but also a dropbar which allows cyclists to maintain high speed over long distances thanks to the multiple hand positions and more aerodynamic riding posture it offers. Every aspect of the JK11 Dropbar is designed to achieve the optimal combination of performance, weight, and quality.
The Joseph Kuosac C38C carbon wheelset uses far lighter material than aluminium, with increased lateral and radial stiffness and improved aerodynamics. This results in a noticeable improvement in responsiveness and acceleration. Whether you’re out the saddle on a climb, attacking a descent or sprinting for the line, carbon road wheels give a sharp, responsive feel.
Stress-free operation is an essential trait for road bike components. The Ultegra R8000 series delivers in this regard, with a low profile and single tension construction. It does not hit the chainstay even in rough riding conditions, providing smooth and silent performance. The shifter offers clear contact with balanced rigidity, weight, and stopping power, while stabilizers between axles reduce deformation and improve braking efficiency.
The faster and longer you cycle, the more aerodynamics come into play. Dropbars allow you to assume riding postures that reduce drag and increase speed and efficiency. The PRO LT Compact Handlebar aids your comfort and control by boasting drops with a compact bend. You can easily shift from the top or hoods to the drops, or vice versa. The brake and shifter levers are also easier to reach as a result.
Birdy Monocoque 7005-T6 Aluminium
Hydroformed Front Suspension Fork w/ Disc Brake Mount
95D PU Elastomer
Driveline Shimano Hollowtech II compatible threaded 68mm
Driveline ZELE-A11-OS BCD110 Crankset with 52T NW Chainring
Shimano 105 11 Speed Chain
Shimano Ultegra CS-R8000 11 Speed Cassette 11-28T
Shimano Ultegra R8000 11 Speed Short Cage Rear Derailleur
Shimano ULTEGRA Shifting/Brake Lever (ST-R8000-SET)
Juin-Tech GT 4 pistons brakes (Black)
Shimano 6-Bolt 160mm
Shimano ULTEGRA Shifting/Brake Lever (ST-R8000-SET)
20″-406 Schwalbe ONE
20″-406 Joseph Kuosac C38C Carbon Rim / Black Labels
Joseph Kuosac Front 24 / Rear 24 Disc Brake Hubs
Semi integrated 1-1/8″
Cannondale KnurlTack Bar Tape
Shimano PRO LT Compact Handlebar
New Birdy Double Lock, Telescopic 10 Degree Stem
Birdy SP61R.1 34.9mm AL7075 Hard Anodized w/ Laser Scale
Ergon SMC Sport Gel Saddle
DMR V12 Flat Pedal
PCI chain tensioner
Rubber cover for right crank
Folded: 68cm(H) x 38cm(W) x 84cm(L)
145 – 185cm
11kg (incl. saddle & pedals)
110kg (incl. rider & luggage)
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