Birdy JK11 Gravel | 11-Speed | Performance Foldable Bike
Specially customised for adventurous riders
A special collaboration between Mighty Velo and Joseph Kuosac, the JK11 Gravel features a 18” carbon wheelset with inherent damping properties to absorb bumps and vibrations, providing a smoother and more comfortable ride. Its Brooks C19 carved, waterproof saddle and Brooks cambium rubber grips are made for comfort under all conditions, while its Shimano Ultegra 11-speed derailleur allows the bike to overcome uneven surfaces and climb smoothly. The JK11 Gravel is a versatile bike designed to tackle adventures over almost any terrain.
Joseph Kuosac Wheelset with Billy Bonkers Tyres
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. For the JK11 Gravel, this wheelset has been paired up with Billy Bonkers tyres with closely positioned blocks for grip on dusty and sandy ground, equipping it for uneven terrains and leisurely rides over gravel.
Shimano Ultegra Derailleur
The Ultegra CS-R8000 rear derailleur offers a sleek appearance and optimized shifting performance that's both smooth and silent. The shifter offers clear contact with balanced rigidity, weight, and stopping power, while stabilizers between axles reduce deformation and improve braking efficiency.
Juin-Tech Cable Actuated Hydraulic Disc Brake
The R1 brake system mimics the powerful performance of traditional hydraulic brakes, but its cable-actuated design makes it a more versatile choice for those who prefer a variety of control options.
Specifications
Frame
Frame |
Birdy G3 Monocoque 7005-T6 Aluminium
|
---|---|
Fork |
Hydroformed Front Suspension Fork w/ Disc Brake Mount
|
Rear Suspension |
95D PU Elastomer
|
Drive Train
Bottom Bracket |
Driveline Shimano Hollowtech II compatible threaded 68mm
|
---|---|
Chainwheel |
Driveline ZELE-A11-OS BCD110 Crankset with 48T NW Chainring, Shimano Hollowtech II compatible
|
Chain |
Shimano 105 11-Speed Chain
|
Cassette |
Shimano Ultegra CS-R8000 11-Speed Cassette 11-32T
|
Derailleur |
Shimano Ultegra R8000 11-Speed Short Cage Rear Derailleur
|
Shifter |
Shimano RS700 11-Speed Flat Bar Shifter
|
Brakes
Brakes |
Juin-Tech GT 4-Piston Brakes (Black)
|
---|---|
Disc Rotor |
Shimano 6-Bolt 160mm
|
Brake Lever |
Shimano Deore BL-T610 Brake Levers
|
Wheels
Tyre |
18″-355 Schwalbe Billy Bonkers (Black)
|
---|---|
Rim |
18″-355 Joseph Kuosac C38C Carbon Rim (White Labels) |
Hub |
Joseph Kuosac Front 24 / Rear 24 Disc Brake Hubs
|
Cockpit
Head Sets |
Semi integrated 1-1/8″
|
---|---|
Grips |
Brooks Cambium Rubber Grips (Black/Copper)
|
Handlebar |
Horizon AL6061T6 Butted, 31.8x540mm 10D
|
Stem |
New Birdy Double Lock, Telescopic 10 Degree Stem
|
Seat
Seat Post |
Birdy SP61R.1 34.9mm AL7075 Hard Anodized w/ Laser Scale
|
---|---|
Saddle |
Brooks Cambium C19 Carved All Weather Saddle (Black) |
Accessories
Pedals |
DMR V12 MTB Flat Pedals (Black)
|
---|---|
Chain Tensioner |
PCI chain tensioner
|
Bell |
Bell (Black)
|
Dimensions
Estimated Dimensions |
Folded: 68cm(H) x 38cm(W) x 84cm(L)
|
---|---|
Rider Height |
145 – 185cm
|
Weight
Weight |
10.7kg (incl. saddle & pedals)
|
---|---|
Max Load |
110kg (incl. rider & luggage)
|
Important notes
- Specifications can change without prior notice.
- Images are for illustration purposes only. Please refer to the specifications.
- International Buyers - Please Note: all import duties, taxes, and charges at the destination country are not included in the item price or shipping cost. These charges are the buyer’s responsibility.
- All bikes purchased cannot be returned, refunded, or exchanged.
- Warranty is non-transferrable.
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