Undefeated II - Photon Blue Edition
What's My Size?
Click and drag to view gallery

Undefeated II - Photon Blue Edition
Race Ready - Out The Box.

Straight out of the box - the Undefeated II is a race ready, beast of a machine. Building upon the original Undefeated's winning pedigree, The Undefeated II comes stock with the aerodynamic Essor Aerodash Track Crank, Deda Handlebars, and Michelin Tires stock while featuring new and lighter rounded 7005 Aluminum Double Butted Tubes. The stiffened front end features a newly oversized-tapered head tube and matching Essor USA full carbon fork for superior handling and responsiveness. These new features make The Undefeated II the perfect tool for mastering fixed-gear crits. The Essor USA Bolt wheelset is an added bonus - being both lightweight enough to race (2204 g) while still being durable to take a beating on the street.

See What the Experts Have to Say! (Read The Reviews):
Customize your build

The favorite in track and fixed-gear racing. Our most responsive and powerful machine yet boasts nothing but premiere parts and components.


  • FRAME:  7005-Grade Double Butted Aluminum 
  • FORK: Full Carbon Fiber Fork & Steer Tube by Essor USA
  • WHEEL SET:  Essor USA Bolt Wheel Set 
  • FLIP-FLOP HUB:  Sealed, Low-Flange Hub - Easily Ride Fixed Gear or Single Speed
  • TIRES: Michelin Dynamic Sports 
  • CRANK: Essor USA Aerodash - 170MM - 7075 CNC Chainring
  • GEAR RATIO: 48x16
  • HEADSET:  FSA No.42/ACB - Integrated and Sealed
  • HANDLEBARS: Deda RHM02 31.8mm Track Drops
  • STEM: 3D Forged - 90MM ext
  • BRAKES:  Includes Front & Rear Brakes 
  • SEATPOST:  Oversized 31.6mm
  • SADDLE:  Microfiber 

*Pedals not included.

SIZE:  6 Frame Sizes to fit any Rider Height from 5'0" to 6'6" (Size 55cm Pictured)

WEIGHT:  16lbs 6oz 
*(Weights Taken Using a Size 55cm Frame w/ no Brakes or Pedals)


Risk-Free Purchase - State Bicycle Co. offers FREE EXCHANGES* -If this item doesn't work out, we'll send you a return label and exchange for free!

    Click Here for Size Chart and Specs

    RETURNS & Exchanges: State Bicycle Co. proudly offers FREE RETURNS for EXCHANGES - please see details of our Return Policy here.

    SHIPPING:  Most in-stock items ship within 1 business day! Tracking information is provided upon shipment. Learn more about our Shipping Policy

    ASSEMBLY: Complete Bicycles will ship 90% built and require only basic tools and knowledge to complete the build. However, a fully assembled bicycle also needs to be tuned and adjusted (oftentimes with specialty tools). We strongly encourage having your bike professionally assembled to validate your warranty and to ensure a safe and lasting ride.

    WARRANTY:  Warranty activated when you submit proof of professional assembly. 

    • 5-year Warranty on all bicycle frames
    • 1-year Warranty non-consumable parts
    • 2-year Warranty on Essor USA products

    Learn more about our Warranty Policy.

    Size Charts and Specs:  Detailed Size Charts and Specs can be found here:  Size Charts & Specs.

    SUPPORT:  We pride ourselves on having a friendly and knowledgeable staff. Contact us and we'd be happy to help you out in any way we can.

    Customer Reviews

    Based on 3 reviews
    Fixie Undefeated II

    I bought the bike for my son and he loves it! Very smooth and quick responding bike with quality parts/construction. The response to shipping and the ease of purchase was excellent!

    Great value for the money, good in the right places!

    Received this well packed bike and was immediately impressed by the beautiful paint job.
    The quality of the frame & fork, crankset, and wheelset are high considering the cost of the bike.
    The paint and decals are nicely applied and tastefully designed.

    Was not impressed as much with the supplied handlebar/stem & saddle/seatpost, though there were upgrade options so I can't fault State too much for this! I did have to spent a decent amount of time filing the backside of the threaded holes on the stem where it clamps to the bars, because there were very sharp edges straight out of the box.

    Currently he (Giuseppe, the bike!) lives on an indoor trainer until the velodrome gets a bit more dry, and am looking forward to getting to break him in!

    Great bike!

    Bought this bike after my Bianchi Superpista was stolen on a great sale. I’ve loved it so far - it’s just as light as my previous build and zippy. Comes with some high quality parts. Nice color, too. Thanks!