A simple bike from simpler times
Get to know your ride
High-Tensile Steel Frame
Durable build
Single Speed
Lighter and less complicated
700x28C Commuter Tires
Solid traction, smooth rolling
Coaster Brake
To stop, simply pedal backwards
Features
Durable Steel Frame
High-tensile strength steel is tough, resistant to fatigue, and shock-absorbing－a must for city riding.
Single Speed
Single speed bikes boast fewer components than multi-gear bikes, which keeps them lighter, less complicated, and easier to maintain.
Commuter Tires
Grooved tires grip the pavement and dispel water for solid traction, rain or shine.
Coaster Brake
To stop and take in the views, simply pedal backwards.
Best for pavement
Best for flat
- Specifications
- Sizing
- Financing
- Assembly instructions
Specifications
Specification
Frameset
- Frame Hand Built tig-welded high-tensile steel, "UrbanComfort" design
- Fork Unicrown, Threaded, 28.6mm, 1x fender-eyelet
Wheelset
- Rims Retrospec aluminum double-wall 32H, 30mm V-section, precision machined brake tracks
- Spokes 14G UCP
- Tires Retrospec 700 x 28C all-season, P/V valves
- Recommended Weight Limit 250 LBS
Drivetrain
- Chain KMC 1/8”
- Bottom Bracket 68x110 Cartridge Sealed
Components
- Headset 1 1/8" (28.6mm) steel, Threaded
- Brakes Rear Coaster Brake
- Handlebars Aluminum Alloy 520mm Wide x 30mm Rise, 25.4
- Grips Retrospec Triangle Kraton 125mm length
- Stem Quill-type aluminum 80mm extension, -17⁰ rise, 25.4 handlebar clamp, 22.2 quill
- Saddle Retrospec Pista
- Seatpost Aluminum Alloy Seat Post 25.4 x 300mm with Micro Adjust head
- Seatpost Clamp Aluminum alloy CNC precision 28.6mm
- Pedals Low-Profile Platform, Reinforced Nylon resin, 9/16"
Sizing
Sizing
How to measure my inseam for a bike
Your inseam can help you find the perfect sized bike (measuring it properly is similar to pant inseams but measured a little differently). Here's how they work:
- Stand upright with your feet 6-8" apart.
- Using a tape measure or tailor tape, measure from the bottom of your foot to the top of the inside of your leg.
- 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.
| Size | Height Range | Standover Height |
| 43CM - XS | 5’5” - 5’7” | 29.5" |
| 49CM - S | 5’8” - 5’10” | 31" |
| 53CM - M | 5’11” - 6’0" | 32.25" |
| 57CM - L | 6’1” - 6’2” | 33.375" |
| 60CM - XL | 6’3” - 6’5" | 35" |
Financing
Buy Now, Pay Later
Assembly instructions
Assembly Instructions
All Natural Fun From the Field
Total 5 star reviews: 227 Total 4 star reviews: 57 Total 3 star reviews: 14 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
298 reviews
- Everett M.Verified Buyer4/14/24Rated 5 out of 5 starsBest, lightest single speed bike ever.
I have never been happier with any other bike upon initial impression. The color is phenomenal, the fit is perfect, the wheels are light, the tires and great quality. Due to my physical limitations (spine and arthritis in knee), I have swtiched the cog to a 18t and changed to a taller stem. This is by no means the fault of Retrospec. I had to make things easier on my spine. It takes the hills easier, at a relatively simple cadence, I can maintain 12-14 mph. Of all the bikes I own, this one replaces them all. Seriously, I will be getting rid of all my other bikes. The simplicity of the single speed is perfect for my commute and lifestyle. If you want a truly affordable single speed and make your life easier, this is the bike for you.
- MuratVerified Buyer2/27/24Rated 5 out of 5 stars5 Stars
Love the bike
- Oscar S.Verified Buyer12/26/23Rated 5 out of 5 starsMy first ever bicycle, hey I am in the 40.
This is an excellent, non-expensive, good quality, easy to install bicycle. I am 6’4” tall, 200 lbs and I got the largest one, fit perfect. I am going to change the chair to a more comfortable one. Ahhh, and the breaks…I am getting use to the back paddle feature, it’s cool.
- Chris D.Verified Buyer12/24/23Rated 5 out of 5 starsWe bought 6 to donate
We bought 6 to donate to Ky refugee ministries. Great, solid, high quality, easy to assemble.
- Steven H.Verified Buyer12/16/23Rated 5 out of 5 starsDecided to try something other
Decided to try something other than my trusty cruiser but I still wanted something simple. This Harper has everything I need and nothing I don't. Assembly was easy and it worked well right out of the box. Wheels are true, brake works. I tried installing the chain guard but it just didn't fit quite right so I left it off. No big deal; that's what pants clips are for. Not a design flaw but I did change to a 6 " riser handlebar just because I prefer a more upright seating position. If you're like me and want to spend more time riding and less time fiddling and adjusting then this is the bike you need.