Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green
Harper Fixed-Gear / Single-Speed Bike | Sage Green

Harper Fixed-Gear / Single-Speed Bike

Regular price $329.99 Sale price
$199.99

166 reviews

Sage Green
Matte Graphite and Orange
Matte Black
Atlantic Blue
Slate
White and Black
Frame Size:
43 cm
Rider Height:
4'9"-5'2"
Standover Height:
30.5"
Frame Size:
49CM
Rider Height:
5'2"-5'6"
Standover Height:
31"
Frame Size:
53CM
Rider Height:
5'6"-5'9"
Standover Height:
32.5"
Frame Size:
57CM
Rider Height:
5'9"-6'
Standover Height:
34"
Frame Size:
60CM
Rider Height:
6'+
Standover Height:
35"
142 in stock

Orders are shipping within 1-3 business days.

Harper is sleek, stylish, smooth, and low-maintenance. A hand-built steel frame and flip-flop hub allow you to ride fixed-gear or free, making Harper the perfect whip to work, class, or brunch.

Our take on single-speed/fixed riding is your new go-to for commuting, coasting, and cruising far beyond point A to point B. With a quick flip of the back wheel, Harper turns from a single-speed cruise to a fixed-gear ride. Harper’s hand-built high-tensile strength steel diamond frame is designed for longevity. Ride comfortably with riser handlebars for improved posture. Powerful front and rear hand brakes come standard on our Harper and provide exceptionally controlled stops. Machined braking surfaces engineered onto the rims make for safer, faster, and more efficient stopping.


FLIP-FLOP HUB

Harper is your two-for-one sidekick. With a quick flip of the back wheel, Harper turns from a single-speed cruise to a fixed-gear ride. Riding fixed has its advantages (including a guaranteed workout) but it’s not necessary to ride that way if you don’t enjoy it. Switch it up again with a quick flip of the rear wheel. Fixed-gear bikes famously have fewer moving parts so you can keep moving.

COMPONENTRY

We're not interested in anything but the best. Harper sports top-of-the-line components for smooth sailing and effortless riding. VP freestyle pedals, KMC ⅛” chain, 25.4mm riser handlebars, front and rear Promax brakes, help you maintain total control of your ride. 30mm Deep V rims and thick, stable tires ensure a smooth ride, gripping to city streets regardless of conditions.

*Due to differences in screen resolutions, please note that colors may differ slightly.
Frame: Hand-built steel track frame
Geometry: Bar spin clearance & no toe overlap
Drop-Out: Horizontal drop-outs
Rims: 30mm Super Deep-V Double Wall Rims with Braking Surface
Hubs: Flip Flop Hub with Single-Speed 16T Freewheel & Fixed-Gear 16T Cog
Tires: Kenda City Tires 700x28C
Chain: KMC 1/8”
Headset: 1 1/8” Threaded
Stem: Promax Alloy 25.4mm clamp size diameter
Handlebars: 25.4mm Riser Handlebars
Grips: Kraton Rubber Track Grips
Brake: Front & Rear Promax Brakes with 22.2mm brake lever clamp diameter
Bottom Bracket: NECO 68x110 Catridge Sealed
Pedals: 9/16” Plastic Pedals
Saddle: Critical Cycles Pista Saddle
Tools: All the tools you need to build and maintain your own bicycle inclucding three metric Allen wrenches and a flat wrench.
Recommended Weight Limit: 250 LBS

Measuring Inseam

Inseam is the most important metric to consider when deciding on bike size. In order to take this measurement properly, follow these guidelines:

  1. Stand upright with your feet 6-8" apart.
  2. Using a tape measure or tailor tape, measure from the bottom of your foot to the top of the inside of your leg.
  3. Compare your inseam measurement to the standover height of the bike. You should have about an inch of space between your body and the top tube.

Additional Sizing Info

Our take on single-speed/fixed riding is your new go-to for commuting, coasting, and cruising far beyond point A to point B. With a quick flip of the back wheel, Harper turns from a single-speed cruise to a fixed-gear ride. Harper’s hand-built high-tensile strength steel diamond frame is designed for longevity. Ride comfortably with riser handlebars for improved posture. Powerful front and rear hand brakes come standard on our Harper and provide exceptionally controlled stops. Machined braking surfaces engineered onto the rims make for safer, faster, and more efficient stopping.


FLIP-FLOP HUB

Harper is your two-for-one sidekick. With a quick flip of the back wheel, Harper turns from a single-speed cruise to a fixed-gear ride. Riding fixed has its advantages (including a guaranteed workout) but it’s not necessary to ride that way if you don’t enjoy it. Switch it up again with a quick flip of the rear wheel. Fixed-gear bikes famously have fewer moving parts so you can keep moving.

COMPONENTRY

We're not interested in anything but the best. Harper sports top-of-the-line components for smooth sailing and effortless riding. VP freestyle pedals, KMC ⅛” chain, 25.4mm riser handlebars, front and rear Promax brakes, help you maintain total control of your ride. 30mm Deep V rims and thick, stable tires ensure a smooth ride, gripping to city streets regardless of conditions.

*Due to differences in screen resolutions, please note that colors may differ slightly.
Frame: Hand-built steel track frame
Geometry: Bar spin clearance & no toe overlap
Drop-Out: Horizontal drop-outs
Rims: 30mm Super Deep-V Double Wall Rims with Braking Surface
Hubs: Flip Flop Hub with Single-Speed 16T Freewheel & Fixed-Gear 16T Cog
Tires: Kenda City Tires 700x28C
Chain: KMC 1/8”
Headset: 1 1/8” Threaded
Stem: Promax Alloy 25.4mm clamp size diameter
Handlebars: 25.4mm Riser Handlebars
Grips: Kraton Rubber Track Grips
Brake: Front & Rear Promax Brakes with 22.2mm brake lever clamp diameter
Bottom Bracket: NECO 68x110 Catridge Sealed
Pedals: 9/16” Plastic Pedals
Saddle: Critical Cycles Pista Saddle
Tools: All the tools you need to build and maintain your own bicycle inclucding three metric Allen wrenches and a flat wrench.
Recommended Weight Limit: 250 LBS

Measuring Inseam

Inseam is the most important metric to consider when deciding on bike size. In order to take this measurement properly, follow these guidelines:

  1. Stand upright with your feet 6-8" apart.
  2. Using a tape measure or tailor tape, measure from the bottom of your foot to the top of the inside of your leg.
  3. Compare your inseam measurement to the standover height of the bike. You should have about an inch of space between your body and the top tube.

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Customer Reviews

Customer Reviews
4.8 Based on 166 Reviews
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04/03/2020
Pogosyan, M.
United States United States
Thanks Retro Team

I had originally ordered the Harper because the Beaumont was out of my size “S”. I got an email the next day that my payment was refunded because the Harper was not in stock, but they also included the Amazon link I can order from right away. They even replied and answered my question regarding sizing for the bikes. In the end, I purchased the Beaumont in size “M” (which worked out perfectly) but the support and team at Retrospec was awesome. They were really helpful and the entire process was just so easy. Thanks guys!

SP
04/02/2020
Samuel P.
United States United States
Good buy!!!

So far so good!

EE
04/01/2020
Ezekiel E.
United States United States
First bike!

Great experience! I was recommended this bike from a friend who has the same one. He said it was a good and cheap bike. I ordered it online and it showed up a week later. Everything in the box along with tools to assemble. Loving this bike. No issues.

SC
03/30/2020
Sara C.
United States United States
Great bike

I am very happy with my new bike. It feels sturdy and yet super light. I have been using it for a couple of weeks now and have nothing to complain about it. And I really love the design!

J
03/27/2020
Jeannie
United States United States
Size a bit big but great bike

Package came in the mail quick, super nice finish, great quality. I’m 5’3 and got the S. Turns out it was too tall so I’m returning to get the XS (guess it depends on the brand and it’s sizes). Other than that, no complaints. Beautiful bike, comfortable, and rides smoothly. Cannot wait to get the correct size! :)