About Unknown Bikes
The Story Behind Unknown Bikes
Unknown Bikes makes fixed gear and single speed bicycles for riders who want less between them and the road: one gear, a direct drivetrain and a clean, no-frills design.
Our Story
A fixed gear bike strips cycling back to its essentials. There is no gear shifting and, when you ride fixed, no coasting: the pedals turn whenever the rear wheel turns. That direct link is why fixed gear is still the standard on the track, and why so many riders choose it for the city.
Riding fixed sharpens your connection with the bike, the street and everything around you. You read the traffic further ahead, control your speed through the pedals and ride with more focus and flow. Fewer parts also means a bike that is simpler to look after and easier to make your own.
Unknown Bikes brings that idea together with a sharp, modern, minimalist look and components chosen for performance and durability.
Built to Ride
Every current Unknown complete bike comes with a flip-flop rear hub and an included single speed freewheel, so you can ride fixed or flip the wheel and ride single speed.
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LV3
Our flagship track bike: a hardened 6066-T6 aluminium aero frame with a full 12K carbon fork.
View the LV3
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Singularity
A 6066-T6 aluminium frame, 12K carbon fork and aero seatpost for fast riding in the city.
View the Singularity
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Bass-X
A 6066-T6 aluminium frame and full 12K carbon fork with a more relaxed, upright riding position.
View the Bass-X
- Flip-Flop HubFreewheel included: ride fixed or single speed
- Free Pedals + StrapsWith every complete bike
- Front & Rear BrakesFitted as standard
- About 90% Pre-AssembledFinal assembly needed before riding
TFGS × Unknown Racing Team
Built for the Streets. Proven on the Track.
Fixed gear cycling was born on the track, and racing is still where a fixed gear bike faces its toughest test: one gear, no coasting and nowhere to hide.
The TFGS Unknown Racing Team rides Unknown bikes in fixed gear racing. Here, a team rider in TFGS and Unknown kit is at full effort on an Unknown track bike.
It is the same direct, responsive feel that every Unknown bike is designed around, whether you are lining up for a race or crossing the city.
Unknown Bikes Europe
Unknown Bikes Europe is the official source for Unknown bikes, frames and components in selected European countries. We bring the Unknown range to European riders and look after you before and after your order.
- Free Standard ShippingNo minimum order. Delivery to selected European countries.
- Warranty2-year legal guarantee, plus a 5-year frame warranty under our warranty conditions.
- Secure PaymentVisa, Mastercard, PayPal & Apple Pay
Questions about sizing, products or your order? Contact us and our team will help you by email. Read our shipping policy and warranty conditions.
Explore the Bikes
Find your next ride, build up a frame or upgrade the bike you already have.

Complete Bikes
Fixed gear and single speed bikes, ready to ride after final assembly.
Shop now: Complete Bikes
Frames
Unknown frames and framesets for your own build.
Shop now: Frames
Components
Forks, handlebars, stems, wheelsets, seatposts and more.
Shop now: Components



Flip-Flop Hub
Free Pedals + Straps
Front & Rear Brakes
About 90% Pre-Assembled
Free Standard Shipping
Warranty
Secure Payment
