SKU: 22904000234
bottom bracket fixed gear

bottom bracket fixed gear UNKNOWN PARADIGM FIXED GEAR | Complete Bicycle

Sale price$22.41 Regular price$24.90
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 1 - Oct 6

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Description

bottom bracket fixed gear UNKNOWN PARADIGM FIXED GEAR | Complete BicycleDescription Signature Frame We are continually improving and adding to our stable of frames! We are proud to introduce the Paradigm fixed gear frame. Made from 6066 t 6 heat treated aluminum with a tight geometry designed for street crits this frame is a versatile street machine! Comes with carbon alloy fork. Bicycle Components Unknown Bicycles Paradigm Frame is made of high grade, hardened Aluminum 6066 T6. The fork is our Carbon (12K) with 1 1 8

Description

Signature Frame

We are continually improving and adding to our stable of frames! We are proud to introduce the Paradigm fixed gear frame. Made from 6066 t-6 heat treated aluminum with a tight geometry designed for street crits this frame is a versatile street machine! Comes with carbon/alloy fork. 

Bicycle Components

Unknown Bicycles Paradigm Frame is made of high-grade, hardened Aluminum 6066 T6. The fork is our Carbon (12K) with 1 1/8” aluminum neck and features a 30mm rake. The headset is an integrated SB, 45x45. The fixed gear bike frame uses a 90mm stem and Unknown Compact 420mm handlebars. Included brake levers are ZST single speed with our Unknown brake set. The chain arm is 165mm and 130 BCD. The chain wheel is our Unknown 48 tooth, 130 BCD, at 0.5 x 1.125”. The rear cog has 17 teeth. The seat post and saddle are made by us at Unknown while the tires are WTB Freedom ThickSlick 23c. The seat post measures 27.2mm x 300 mm with a 22mm offset. Included rims are Unknown fixed gear 28d rims. The bottom bracket is 68x103mm, BSA with a Square tapper.

Carbon Fork

We also opted for the carbon/alloy fork instead of the standard alloy fork for the European market. This fork increases the price a bit, but it makes a big difference in performance and comfort, not to mention improving the overall look!

Weight

in size M is 7,4kg | without pedals

Shipping

Paradigm Fixed Gear Bicycle is shipped with Dropbars and brakes.


*Free pedals with foot straps worth €50! - INCLUDED*

Specifications

  • Frame: Unknown Paradigm, 6066 T6
  • Fork: Unknown Carbon(12K) with aluminium neck, 30mm rake, 1 1/8"
  • Headset: integrated Unknown, SB, 45x45st., 1 1/8"
  • Stem: Unknown 90mm
  • Handlebars: Unknown Compact 420mm
  • Grip: Unknown Carbon
  • Brake levers: ZST single speed
  • Brakes: Unknown brake set
  • Chainarm: Unknown 165mm, 130BCD
  • Wheelchain: Unknown 46t, 130BCD, 1/2"x1/8"
  • Chain: KMC Z510 1/2"x1/8"
  • Rear cog: 17t
  • Rims: Unknown 28d
  • Hubs: Unknown Fix/Free 28d, SB - Freewheel not included
  • Tires: WTB Freedom Thickslick 23c
  • Seatpost: Unknown 27.2mm, 300mm, 20mm offset
  • Saddle: Unknown
  • Bottom bracket: 68x103mm, BSA, Square tapper                                             

Size chart

53 150cm - 167cm
55 167cm - 176cm 
58 176cm - 190cm
60 190cm - 200cm
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 22904000234

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    Jan Holland, Esq.
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    Buttery soft, comfortable and the perfect height!!!
    Size: 10.5, Color: Black Leather, Size: 10.5, Color: Black Leather
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    Reviewed in the United States on September 5, 2025
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    Anniebgud
    West Palm Beach, US
    ★★★★★ 4
    These boots were made for walking…
    Size: 9, Color: Chocolate Brown
    Stylish black suede boots with an adorable chunky heel. The fit is true to size. They look elegant yet dangerous! They were also, surprisingly, very comfortable!
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    Reviewed in the United States on March 28, 2026
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    Emily Summer
    Charlottesville, US
    ★★★★★ 5
    My favorite boots ever!
    I searched forever to find the perfect camel boots and could not be happier with this purchase. So happy, in fact, that I bought another pair in a different color! They’re really soft and the perfect heel height to still be comfortable. They are so classy and definitely a staple for me for work. Love!
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    Reviewed in the United States on March 1, 2026
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    private
    Louisville, US
    ★★★★★ 3
    Not comfortable for long term wear. No cushioning .
    Size: 10.5, Color: French Burgundy
    So cute but too small for calves and no cushioning inside. Couldn’t walk in these for very long.
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    Reviewed in the United States on April 27, 2026
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    Cynthia M.
    Draper, US
    ★★★★★ 5
    Great Suede Boots!
    Size: 8, Color: Black Suede, Size: 8, Color: Black Suede
    Love these boots, the suede is soft but retains shape, the fit true to size. Purchased in 3 colors! Brown, burgundy, & black.
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    Reviewed in the United States on May 16, 2026

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