All the perks of a single speed bike, made simpler
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Coaster brake for smoother stops
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Simple and sleek
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Easy to maintain
Easy braking
Harper Coaster kicks it old school with a built-in coaster brake. To stop, simply pedal backward and slow your roll.
Easy riding and maintenance
Harper is as simple as it gets. Single-speed bikes boast fewer components than multi-gear bikes, which keeps them lighter, less complicated, and easier to maintain. Enjoy an easy ride without all the bells and whistles.
- Frame Hand-built steel track frame
- Drop-Out Horizontal drop-outs
- Rims 30mm Super Deep-V Double Wall Rims with Braking Surface
- Tires Kenda 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 Rear Coaster Brake
- Bottom Bracket NECO 68x110 Catridge Sealed
- Pedals 9/16” Plastic Pedals
- Saddle: Retrospec Pista Saddle
- Recommended Weight Limit: 250 LBS
| Size | Height Range | Standover Height |
| XS - 43CM | 4'9"-5'1" | 30.5" |
| S - 49CM | 5'2"-5'5" | 31" |
| M - 53CM | 5'6"-5'8" | 32.5" |
| L - 57CM | 5'9"-5'11" | 34" |
| XL - 60CM | 6'+ | 35" |
What's My Size?
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.
Get everything you need to start moving
Customer Reviews
4.7
Based on 224 Reviews
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KH
03/02/2021
Kristy H.
United StatesNice bike
I love the look of the bike, and I love how it is really sleek and almost feels like a road bike. I was a little disappointed because I ordered it online using your measurements guide and when it came it was too big for me. And you don’t have an exchange policy so I would of had to pay $45 more dollars to ship it back and get another one, so I just decided to keep it. I had to make some height adjustments to it, but it works.
LV
03/01/2021
Luis V.
United StatesMy opinion of my recent Retrospec purchase
This was an excellent purchase. The bike was easy to look at online; the site was easy to navigate; the purchase was easy and the bike got her ein a very reasonable time.
JM
02/28/2021
Jordan M.
United StatesToo Tall
Order a bike at least 2 sizes smaller than recommended. I ordered one a size smaller according to my height and I would be far more comfortable on one 1-2 sizes smaller. Overall, its a cool bike. Buy more reflectors!
HD
02/27/2021
Hanna D.
United States4/5
I’m 5’7”, so based on the sizing chart, I ordered the recommended medium. It was too tall, and ended up fitting my 6’1” boyfriend perfectly. But the return process was smooth, and I’m waiting on my new one now. Unless you’ve got really long legs, I wouldn’t bet on the sizing chart. Other than that, the bike is great!
MB
02/25/2021
Marissa B.
United StatesCan take a hit
I got hit by a car while riding this bike and even though I broke my arm, the bike only has a little scratch. So the materials are strong and good. I ordered one size down and the bike was still a little tall (made it hard to dismount in an emergency like before getting hit by a car)