Unknown LV3 Black on Black fixed gear track bike - full side view
Unknown LV3 Black on Black fixed gear track bike - full side view Unknown LV3 Black on Black | Fixed Gear Track Bike Unknown LV3 Black on Black | Fixed Gear Track Bike Unknown LV3 Black on Black track bicycle - handlebars and brake levers Unknown LV3 Black on Black - carbon fork and headtube closeup Unknown LV3 Black on Black | Fixed Gear Track Bike Unknown LV3 Black on Black | Fixed Gear Track Bike Image 5: Unknown LV3 Black Chameleon track bicycle - handlebars and stem Unknown LV3 size guide

Unknown LV3 Black on Black | Fixed Gear Track Bike

€1,249.00 €999.00
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Unknown LV3

Black on Black

Fixed Gear / Single Speed Track Bike

Unknown LV3 Black on Black fixed gear and single speed bike, full side view

The Unknown Bikes LV3 is a lightweight aluminium track bike built to ride as a fixed gear or single speed. Its hardened 6066-T6 aluminium frame is paired with a full 12K carbon fork.

The Black on Black colourway keeps the LV3 understated with a matte black frame and black Unknown graphics. The flip-flop rear hub uses a 17T fixed cog on one side and the included 16T freewheel on the other. Compare other Unknown LV3 finishes.

  • 8 kg

    Approx. weight, size 55

  • Full Carbon Fork

    12K carbon, 30 mm rake

  • Tapered Head Tube

    Integrated tapered design

  • 6066-T6 Frame

    Hardened aluminium

Key Features

Unknown LV3 Black on Black frame finish and Unknown logo detail

Black on Black Finish

The Black on Black colourway keeps the LV3 understated with a matte black frame and black Unknown graphics.

Unknown LV3 Black on Black full carbon fork detail

Full Carbon Fork

Full 12K carbon fork with a 30 mm rake.

Unknown LV3 Black on Black aero aluminium frame profile

Aero Frame

The hardened 6066-T6 aluminium frame uses the LV3 aero frame profile.

Unknown LV3 Black on Black tapered head tube detail

Tapered Head Tube

The LV3 frame uses a tapered head tube at the front end.

Built for City and Track

The LV3 pairs a hardened 6066-T6 aluminium frame with a full 12K carbon fork and a tapered head tube. Its track-focused layout is designed for responsive urban and track riding.

The drivetrain uses a 46T chainring. Ride fixed with the 17T fixed cog for a 46T × 17T setup, or flip the rear wheel to use the included 16T freewheel for a 46T × 16T single speed setup.

Compact 420 mm drop bars provide multiple hand positions. The bike includes front and rear brakes, pedals and straps, and arrives approximately 90% pre-assembled.

What's Included

Unknown LV3 Black on Black flip-flop hub with included 16T freewheel

Flip-Flop Hub

17T fixed cog on one side, included 16T freewheel on the other.

Unknown LV3 Black on Black front and rear brakes fitted as standard

Front & Rear Brakes

Front and rear brakes fitted as standard.

  • Pedals + Straps

    Included with every complete bike

  • 90% Pre-Assembled

    Final assembly required before riding

Specifications

Frame Unknown LV3, 6066-T6 aluminium
Head tube Tapered head tube
Fork Unknown full 12K carbon, 30 mm rake
Hubs Unknown Fix/Free, 28H, sealed bearing
Chainring 46T, 130 BCD
Fixed cog 17T
Freewheel 16T, included
Handlebars Unknown Compact 420 mm drop bar
Brakes Unknown brake set, front and rear
Tyres 23c
Weight Approx. 8 kg, size 55
Show all specifications
Stem Unknown 90 mm
Brake levers ZST single speed
Crank arms Unknown 165 mm, 130 BCD
Chain KMC Z510, 1/2" × 1/8"
Rims Unknown 28H
Seatpost Unknown 27.2 mm, 300 mm, 20 mm offset
Saddle Unknown
Bottom bracket 68 × 103 mm, BSA, square taper

Sizing

  • 53152–168 cm
  • 55166–178 cm
  • 58176–185 cm
  • 61183–200 cm

Frame size and recommended rider height. Between sizes? Contact us and we'll help you choose the best fit.

Frame Geometry

Detailed LV3 frame measurements in millimetres. To choose your size, start with the rider-height guide in the Sizing section.

Frame size S (53) M (55) L (58) XL (61)
Top tube length (C‑C) 535 537 552 573
Seat tube length (C‑T) 530 550 580 610
Seat tube length (C‑C) 482 502 519 539
Head tube length 115 135 150 170
Down tube length 606 606 615 629
Seatstay length 355 355 355 355
Chainstay length 372 372 372 372
BB drop 45 45 45 45

C‑T: measured from the top of the top tube to the centre of the BB shell. C‑C: measured from the centre of the top tube to the centre of the BB shell.

Fixed Gear & Single Speed

A fixed gear bike has the rear cog locked to the hub, so the cranks turn whenever the rear wheel turns. A freewheel single speed lets the rider coast while keeping a single gear ratio.

The LV3 flip-flop hub lets you choose: ride fixed with the 46T × 17T setup, or flip the rear wheel to run the included 16T freewheel for a 46T × 16T single speed setup.

Frequently Asked Questions

Is the Unknown LV3 fixed gear or single speed?

Both. The flip-flop rear hub lets you ride fixed gear with the 17T fixed cog or turn the rear wheel around and use the included 16T freewheel as a single speed.

Does the Unknown LV3 include a freewheel?

Yes. A 16T freewheel is included. The opposite side of the flip-flop hub uses a 17T fixed cog.

How assembled is the Unknown LV3 when delivered?

It arrives approximately 90% pre-assembled. Final assembly is required before riding.

What size Unknown LV3 do I need?

Use the sizing guide above to match your height to the recommended frame size. If you are between sizes, contact us and we'll help you choose the best fit.

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    On orders over €500

  • 5 Year Warranty

    On all frames

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