Uniform - $399

Yellow frame with Black fork and Black deep dish wheels.

For every Uniform sold, we donate $100 to charity: water

  • Your bike, delivered fully bylt
  • 30 Day Returns
  • Best Warranty in the Business


5'2" - 5'6"
5'6" - 6'
6' - 6'3"

Fully Assembled - Right to your door. Learn about Bylt

Low Maintenance

One speed, no fuss. Spend your time riding, not wrenching.

Easy to Upgrade

You’re unique, your bike should match. Upgrades make that easy.

Ride Your Way

Fixed gear for fun and fitness, or freewheel to cruise and coast.


This Uniform is all about doing right. For every bike sold, $100 goes to support the men and women in uniform at Charity water, giving them what they need to do the amazing work they do around the world. So put on your uniform by getting on one of ours, and you'll feel as good as you look.

Read more about charity: water.

*charity: water donation applies to online orders only.

Bike buying has never been easier

Choose from 3 Simple Delivery Options at Checkout

Bike Shop Pickup
  • Meet your local Bike Shop!
  • Includes the same service plan as buying your bike directly from the shop
  • Pick up the bike, ready to ride, right from your local bike shop.
  • We'll pick a trustworthy shop so you don't have to worry.
  • Automatically Activates Warranty
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Fully Built Delivery
  • Easiest Option!
  • Your bike, ready to ride, delivered right to your door
  • Orders are shipped to the closest mechanic to you, built up and delivered to your door!
  • Our trusted mechanic will contact you for the perfect delivery time.
  • Keep your hands clean
  • No tools, no problem
  • Automatically Activates Warranty
  • Pronounced like built :)
  • *Only available in major metropolitan areas
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Pure Fix Original Series

These are the bikes that started it all and kicked off our mission to get more people on two wheels. Now, it’s our best-selling line! Speed, style, and affordability make these bikes the perfect storm of awesome whether you’re starting out, getting back into biking after a few years away, or just want to get a feel for riding fixed!

Full Original Fixed Gear Bike Specifications

The best warranty in the business

We believe in our bikes and we believe you should be able to enjoy riding without sweating the small stuff - that’s why we’ve got your back! With a lifetime warranty on frames and a 1-year warranty on components, you can ride confidently with the knowledge that we’ve got you covered.

To activate your warranty, professional assembly is required.

Fixed Gear or Freewheel?

We chose a flip-flop rear hub to give you the flexibility to ride fixed or freewheel. Riding fixed gives you an unmatched feeling of connectedness to the bike, the road, and helps you perfect your pedal-stroke. Riding freewheel gives you the ability to coast and cruise, just like the single-speed you grew up on! No matter which you choose to ride, the standard front brake guarantees you can stop either way.

charity: water

Staying hydrated is super important on the bike, but for 800 million people around the world, access to clean water is just a pipe dream. Every day Charity Water helps reduce that number by installing freshwater wells, rainwater catchments, sand filters, and more, so that underserved families can have clean water for drinking, cooking, hygiene. It’s a cause we feel passionately about, so for every one of these bikes sold we donate $100 to charity: water. To date, we’ve helped raise over $10,000! With your help, we can do even more good.

We love happy customers!

If you’re not happy, we’re not happy, and if we’re not happy, why are we doing this? We want you to love your bike and your Pure Cycles experience as much as we love you!

Sizing Chart

Read about Bike Fitting and Sizing on our blog!

This is a rough guideline and we recommend everyone get fitted at their local bike shop. For a quick guesstimate measure your inseam to the floor and select the size with a standover height about 1"-2" shorter than your inseam. Or, you know, go visit your local bike shop! You can also shop by size.

  4’ 4’2 4’4 4’6 4’8 4’10 5’ 5’2 5’4 5’6 5’8 5’10 6’ 6’2 6’3 6’4+
43 CM
47 CM
50 CM
54 CM
58 CM
61 CM
64 CM
  Seat Tube Top Tube Head Angle Seat Angle Chainstay BB Drop Fork Offset Wheel Base Head Tube Length Standover Height
43 CM 430 488 72.3° 74.1° 371 30 46 934 90 686
47 CM 470 562 73° 74.5° 405 65 35 1007 90 711
50 CM 500 567 73° 74.5° 405 65 35 1007 90 736
54 CM 540 577 73° 74.5° 405 65 35 1007 90 762
58 CM 580 577 73° 74.5° 405 65 35 1007 125 812
61 CM 610 579 73° 74.5° 405 65 35 1007 145 838
64 CM 640 575 73° 74.5° 405 65 35 1007 185 863
Pure Fix Cycles Frame Click to download a sizing chart PDF.