SKU: 90040770567
foldable gravel bike

foldable gravel bike Birdy JK11 Gravel | 11-Speed | Performance Foldable Bike

Sale price$22.95 Regular price$25.50
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Ships within 48 hours · Estimated delivery Nov 14 - Nov 19

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Description

foldable gravel bike Birdy JK11 Gravel | 11-Speed | Performance Foldable BikeSpecially 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

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 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

  1. Specifications can change without prior notice.
  2. Images are for illustration purposes only. Please refer to the specifications.
  3. 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.
  4. All bikes purchased cannot be returned, refunded, or exchanged.
  5. Warranty is non-transferrable.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90040770567

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Verified Purchase
Lisa Maddison
Houston, US
★★★★★ 4
Omegaverse with rival families.
Format: Kindle
Tatum is trying to raise enough money to treat her omega mother who has fallen catatonic due to the death of her mate. To make the money she needs she agrees to work at a gentleman's club scantily dressed. There she meets the twin Hayes brothers, Declan and Kodiak, what she doesn't know is that their younger half brother is the high school sweetheart that ghosted her after helping with her first heat. Tatum also meets Easton, the mysterious male omega that pops into her life but she finds herself strongly attracted to. I enjoyed all the characters, even those that were not major characters, the plot was good, the storyline was well done. I would recommend this book if you liked Omegaverse stories, mafia storylines, and good romance with why choose.
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Reviewed in the United States on March 1, 2025
G
Verified Purchase
GhostHina
Belleville, US
★★★★★ 5
Addicting!
Format: Kindle
I could not stop reading. It was so refreshing to have a series start so completely different than most fated mates/fantasy academy rh I’ve been reading. From the desert scenery to the magic and feeding plus the psychological trauma the characters are there to deal with. Pandora is absolutely adorable and I totally relate to hiding behind my hair. I love that she’s literally the most scary type of demon but it’s not the usual “badass mc” persona (which I do love a badass that can fend for herself and kick ass from the start but it was a nice change of pace). I’m not usually a big fan of bully within the harem but each character has their reasons for their actions and also conflicting feelings about them. I adore Dex and Reed! Complete opposites but their personalities and inner monologues made them instant favs. I can’t wait to see the character growth with the guys and continued strength for Pandora. The captivating characters and references to the Fate Hallow series added so much depth and now I need another reread while I wait for book 2. The concept of magic and the unique feeding habits of the demon characters were intriguing. I can't wait for the next book to continue this thrilling journey. In summary, this book is a must-read for fantasy and magic academy rh fans. With its enchanting characters, nods to the Fate Hallow series, and imaginative concepts, it offers an immersive reading experience that hwill leave you craving for more.
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Reviewed in the United States on June 5, 2024
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Verified Purchase
𝔹𝕠𝕠𝕜𝕄𝕠𝕥𝕙
Boise, US
★★★★★ 4
Best academy I've read this year
Format: Kindle
I need a few things when it comes to a first book of a PNR romance series 1-Good world building (which this totally did) 2-An FMC I can root for (oh hell yes, Pandora is someone I can cheer for) 3-Good drama (can you say GROVEL BOYS!) 4-Enough story to make you feel like you really read something with meat (you saw this book is like 600 pages, yeah?) 5-A hook at the end so I want more! (please, Lyra, gimmie more?!? I need more!!) Be aware this book is a slow burn, but damn do I feel like there'll be some big payoff when it finally happens. Who doesn't like the buildup?
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Reviewed in the United States on June 4, 2024
S
Verified Purchase
Steffikins
Grantham, US
★★★★★ 5
Pandora’s Pain, Power, and Passion
Format: Kindle
I absolutely love this new world Lyra Winters has created! The spin on a Demon Academy setting was fresh, unique, and completely addictive. Pandora is a character who immediately captured my heart. Thought to be powerless and enduring years of brutal abuse from her mother, it’s no surprise that her powers emerge at the exact moment she needs them most. After her mother’s death, Pandora discovers her father is none other than Death himself, a soul eater with a dark legacy. Her journey at the academy is anything but easy, filled with challenges tied to her father’s infamous reputation, her barely controlled abilities, and the cruelty of those around her. Pandora is easy to root for, you feel every ounce of her pain, resilience, and growth. Along the way she meets Reed, a half-human dream demon who’s kind, steady, and the kind of friend everyone wishes they had. There’s also Hunter, a vengeance demon and counselor connected to her father, who adds another intriguing layer to her story. Then there are the bullies: Dexter, a brooding shadow demon; Bram, a chaos demon with a drinking problem and deep hatred for demon nobility; and Skel, a fear demon wrestling with his own darkness. They might hurt her, but they also can’t seem to stay away when she’s in danger, making for some deliciously complicated dynamics. This book hits so many of my favorite tropes: friends to lovers, enemies to lovers, and of course, the irresistible “who hurt you?” storyline. I devoured it, and I’m already diving straight into book two!
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Reviewed in the United States on September 4, 2025
B
Verified Purchase
Brandi
Dallas, US
★★★★★ 5
So good!
Format: Kindle
Oh my goodness! What did I just read? Lyra Winters you have some serious explaining to do! That cliffhanger killed me! I am so happy to be back in the world of Kalista. This is definitely darker than Fates Hollow but oh so good. This is a fated mates reverse harem which I absolutely love. Pandora had a very hard and rough upbringing. She lives in pain constantly and it makes it hard on her. She struggles with everything because she was kept so isolated and is new to her magic. Pandora gets sent to the Reform Academy and all of them have reasons why they are there. I love how, after everything she has been through, she is still a nice person. She is growing and becoming stronger too. Love her character. The guys all act like jerks at first but all have a back story that helps understand why even though want to smack them. I'm here for the groveling that I'm sure will come. I love them all. They each bring something for her. They are all drawn to her though. This is a slow burn book but there will be more books in the series so sure it will build. Man, that cliffhanger was a doozy and need book 2 now!
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Reviewed in the United States on June 3, 2024

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