State Bicycle Co. Undefeated II Frame Set
Best lightweight and durable frame for track and aggressive street riding.
A purpose-built foundation for fixed-gear criterium racing that prioritizes stiffness and handling. It strips away excess weight to provide a responsive, agile ride for those who demand precision in high-speed corners.
$999.99
Who it's for
- Aspiring fixed-gear racers and competitive urban cyclists.
- Riders prioritizing agility and quick acceleration in their fixed-gear setup.
- Budget-conscious cyclists seeking a high-performance fixed-gear frame.
Who should skip it
- Casual riders or those seeking comfort for daily commuting.
- Cyclists needing versatility for various riding styles or conditions.
- Riders sensitive to road chatter or preferring a smoother ride.
Performance breakdown
Frame Stiffness
Double-butted 7005 aluminum delivers exceptional power transfer for aggressive sprints.
Handling Precision
Tapered headtube and carbon fork create sharp, predictable steering in corners.
Weight Efficiency
Lightweight alloy construction keeps the bike nimble for rapid acceleration.
Vibration Damping
Carbon fork absorbs road chatter, though the stiff frame remains firm.
Versatility
Flip-flop hub allows seamless switching between fixed and freewheel riding styles.
Build Quality
T6 heat-treated aluminum offers a robust, race-ready foundation for daily abuse.
Key Specs
Bicycle Type
Road Bike
Frame Material
Aluminum
Wheel Size
28 inches
Number of Speeds
1
Brake Type
Rim Brake
Suspension Type
Rigid
Intended Use
Road Racing
Frame
7075 Aluminum, Double Butted, T6 Heat Treated, 1 1/2 inch to 1 1/8 inch Tapered Headtube
Fork
Full Carbon Fork and Steerer
Crankset
Forged 7075 Aluminum, 170mm
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