Unknown LV3 Purple Chameleon

Riding style

Track Bikes

Track-style Unknown complete bikes. Every bike has a flip-flop rear hub, so you can ride fixed or single speed.

  • 4Bikes in stock
  • 3Models
  • €699From
  • €300Save up to
Shop the bikes
  • Free Standard ShippingNo minimum order
  • Pedals + strapsIncluded with every complete bike
  • About 90% pre-assembledFinal assembly before riding
  • Freewheel IncludedRide single speed or fixed gear
  • Front & Rear BrakesIncluded with every complete bike
  • Secure paymentVisa, Mastercard, PayPal & Apple Pay

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4 bikes in stock

Currently sold out (1)

How to Choose an Unknown Fixed Gear Bike

Frame and fork

LV3, Singularity, Bass-X and Paradigm use 6066-T6 aluminium frames, PS1 a 6061-T6 aluminium frame and SC-1 a 4130 chromoly steel frame. LV3 and Bass-X have full 12K carbon forks; Singularity, PS1 and Paradigm use carbon forks with an aluminium steerer.

Fixed or single speed

Every Unknown complete bike has a flip-flop rear hub: ride fixed with the 17T cog, or turn the wheel around and use the included single-speed freewheel (16T on LV3, Singularity and Bass-X).

Frame size

Each bike page lists the frame sizes with recommended rider heights or full frame geometry. Use “Find my size” above to show bikes with a recommended size in stock.

More about Track Bikes

Unknown track bikes bring track-inspired frames to the street: aluminium frames, carbon forks and a direct fixed gear drivetrain, with a flip-flop rear hub for when you want to coast.

The LV3 is the flagship of the range. Its hardened 6066-T6 aluminium aero frame, tapered head tube and full 12K carbon fork make it a lightweight, focused track bike that still works on city streets. It is available in Black on Black, Black Chameleon and Purple Chameleon.

The PS1 is available as a complete bike in Green, with a 6061-T6 aluminium pursuit-style frame and bullhorn bars. The Paradigm combines a heat-treated 6066-T6 aluminium frame with a carbon fork and compact drop bars.

Each track bike in this collection has a flip-flop rear hub with a fixed cog on one side and an included single-speed freewheel on the other, so you can ride fixed gear or single speed.

Explore the full range of Unknown fixed gear and single speed bikes, or go deeper with the LV3 collection.

Questions

Do Unknown bikes include a freewheel?

Yes. Every Unknown complete bike has a flip-flop rear hub and comes with a single-speed freewheel. LV3, Singularity and Bass-X include a 16T freewheel.

How assembled does a bike arrive?

Our bicycles arrive approximately 90% pre-assembled, with free pedals and foot straps included. We recommend professional assembly by a qualified bicycle shop.

Are pedals included?

Yes. Pedals and straps are included with every complete bike.

Where do you ship?

Free standard shipping with no minimum order to every country we currently ship to. Shipping policy