The ultimate in premium components for the most discerning cyclists

A special collaboration between Mighty Velo and Joseph Kuosac, the JK11 Ace features a carbon wheelset that enhances its acceleration, responsiveness, and overall speed. It also makes use of the highest quality components available, such as the advanced Shimano Dura-Ace derailleur, Ergon SMC Gel Saddle, and Ergon GP2-L grips. These components allow it to attain the pinnacle of performance and comfort, with top-of-the-line gear shifting and braking, while not sacrificing portability.

Joseph Kuosac C38C Wheelset

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.

Shimano Dura-Ace Groupset

The Shimano Dura-Ace is the pinnacle of road cycling performance. Renowned for its precision, efficiency, and reliability, this top-tier groupset delivers unrivaled shifting and braking performance, even under heavy load or in challenging conditions. With advanced technologies, lightweight construction, and exceptional durability, the Dura-Ace is the choice of professional riders seeking the ultimate cycling experience.

Juin-Tech Cable Actuated Hydraulic Disc Brake

The Juin-Tech hydraulic disc brakes provide smooth and responsive braking thanks to non-corrosive and high-stability mineral oil within. They are also easy to adjust to the right state, resulting in more durable rotor and disc pads. Enjoy the greatest braking power on the road.

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 52T NW Chainring, Shimano Hollowtech II compatible

Chain

Shimano 105 11-Speed Chain

Cassette

Shimano Ultegra CS-R8000 11-Speed Cassette 11-28T

Derailleur

Shimano Dura-Ace R9100-SS 11-Speed Short Cage Rear Derailleur

Shifter

Shimano RS700 11 Speed Flat Bar Shifter

Brakes

Brakes

Juin-Tech GT 4-Piston Brakes (Black/Blue/Purple/Gold/Green)

Disc Rotor

Shimano 6-Bolt 160mm

Brake Lever

Shimano BL-R780 Flat Bar Brake Levers

Wheels

Tyre

20″-406 Schwalbe ONE

Rim

20″-406 Joseph Kuosac C38C Carbon Rim / Black Labels

Hub

Joseph Kuosac Front 24 / Rear 24 Disc Brake Hubs

Cockpit

Head Sets

Semi integrated 1-1/8″

Grips

Ergon GP2-L Grips

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

Ergon SMC Sport Gel Saddle

Accessories

Pedals

DMR V12 Magnesium Pedal (350g)

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

10.9kg (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.