Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Retrospec
2023 Retrospec Harper Coaster Single Speed
Previous used estimate
$105 - $108
Actual value depends on condition, size, and local demand.
Value Guide market data · 2023 Retrospec Harper Coaster Single Speed
12-month projected trend
8%
Direction and magnitude, not judgment
vs. category average
3%
Holds value better than category avg
Price over time - 2023 Retrospec Harper Coaster Single Speed
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Harper model years
Compare Harper Coaster Single Speed models
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Overview
About this bike
Meet your lightweight, low-maintenance throwback bike, reminiscent of days spent cruising the cul-de-sac. Harper Coaster kicks it old-school with a built-in coaster brake and a simple single-speed drivetrain. 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 backward.
Specifications
- Category
- Hybrid
- Component Fork
- Unicrown, Threaded, 28.6mm, 1x fender-eyelet
- Component Rims
- Retrospec aluminum double-wall 32H, 30mm V-section, precision machined brake tracks
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Quill-type aluminum 80mm extension, -17° rise, 25.4 handlebar clamp, 22.2 quill
- Product Family
- Harper
- Component Chain
- KMC 1/8”
- Component Color
- Matte Black, Olive Drab
- Component Frame
- Hand Built tig-welded high-tensile steel, "UrbanComfort" design
- Component Brakes
- Rear Coaster Brake
- Component Pedals
- Low-Profile Platform, Reinforced Nylon resin, 9/16"
- Component Saddle
- Retrospec Pista
- Component Spokes
- 14G UCP
- Component Headset
- 1 1/8" (28.6mm) steel, Threaded
- Component Seatpost
- Aluminum Alloy Seat Post 25.4 x 300mm with Micro Adjust head
- Component Handlebar
- Aluminum Alloy 520mm Wide x 30mm Rise, 25.4
- Component Rear Tire
- Retrospec 700 x 28C all-season, P/V valves
- Component Front Tire
- Retrospec 700 x 28C all-season, P/V valves
- Component Tape Grips
- Retrospec Triangle Kraton 125mm length
- Component Bottom Bracket
- 68x110 Cartridge Sealed
- Rims
- Retrospec aluminum double-wall 32H, 30mm V-section, precision machined brake tracks
- Pedals
- Low-Profile Platform, Reinforced Nylon resin, 9/16"
- Bottom Bracket
- 68x110 Cartridge Sealed
- Chain
- KMC 1/8”
- Seatpost
- Aluminum Alloy Seat Post 25.4 x 300mm with Micro Adjust head
- Saddle
- Retrospec Pista
- Handlebar
- Aluminum Alloy 520mm Wide x 30mm Rise, 25.4
- Headset
- 1 1/8" (28.6mm) steel, Threaded
- Rear Tire
- Retrospec 700 x 28C all-season, P/V valves
- Stem
- Quill-type aluminum 80mm extension, -17° rise, 25.4 handlebar clamp, 22.2 quill
- Brakes
- Rear Coaster Brake
- Fork
- Unicrown, Threaded, 28.6mm, 1x fender-eyelet
- Frame
- Hand Built tig-welded high-tensile steel, "UrbanComfort" design
- Tape/Grips
- Retrospec Triangle Kraton 125mm length
- Color
- Olive Drab
- Size
- X-Large
- Spokes
- 14G UCP
- Front Tire
- Retrospec 700 x 28C all-season, P/V valves
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.