
Velopedia Bicycle Archive
2021 Jamis Capri
Youth bicycle from the Velopedia specification archive.
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What Velopedia knows
- Model year
- 2021
- Category
- Kids
- Original MSRP
- $569.95
- Sizes
- 12″ G
- Colors
- Sky Blue, Vanilla
- Weight
- 28 lbs
- Geometry
- 1 manufacturer size
- Record coverage
- 23 preserved details · 2 archived images · original MSRP · preserved geometry
- Archive ID
- 900001737
Frameset
| Frame Construction | Lightweight 6061 aluminum comfort frame design with full- length chainguard and kickstand |
|---|---|
| Frame Material | Aluminum |
| Fork | Comfort unicrown, hi-tensile steel, oversized with radiused blades |
| Fork Material | Steel |
Drivetrain
| Component Group | Shimano TY300 rear |
|---|---|
| Shifters | Shimano RevoShift 35, 7-speed |
| Rear Derailleur | Shimano TY300 rear |
| Crankset | Forged alloy crank, 152mm, with 40T chainring |
| Bottom Bracket | Sealed cartridge |
| Cassette | Shimano freewheel, 14-28, 7-speed |
| Chain | KMC HV500 |
| Pedals | Comfort style pedals with non-slip TPE insert |
Brakes
| Brakes | Alloy linear pull type with alloy short reach levers |
|---|
Cockpit & Contact Points
| Headset | Standard threaded type, 1 1/8” |
|---|---|
| Handlebar | Comfort riser type |
| Stem | Hi-rise comfort type, 40 ̊ rise x 90mm extension with 150mm quill |
| Saddle | Jamis Youth Comfort with embossed vinyl and single loop springs |
| Seatpost | Pillar, 27.2 x 300mm, with 31.8mm alloy clamp |
Wheels & Tires
| Wheels | Alloy 36H rims with small flange nutted hubs and 14G black electroplated spokes |
|---|---|
| Front Tire | Brooklyn Speedway, 24 x 2.125” |
| Rear Tire | Brooklyn Speedway, 24 x 2.125” |
| Wheel Size | 24 |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 12″ G |
|---|---|
| Effective top tube | 494 mm |
| Head tube | 120 mm |
| Head-tube angle | 71° |
| Seat-tube angle | 70° |
| Chainstay / rear center | 425 mm |
| Wheelbase | 957 mm |
| Bottom-bracket height | 280 mm |
| Standover height | 558 mm |
| Fork offset / rake | 50 mm |
Geometry source: Jamis first-party geometry table (2021 GEO - YOUTH) ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Parts & serviceability
Find replacement parts
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2021 Jamis Capri · Youth · Published sizes: 12″ G
Frame and fork
Inspect the frame and fork →Archived: Frame: Lightweight 6061 aluminum comfort frame design with full- length chainguard and kickstand · Fork: Comfort unicrown, hi-tensile steel, oversized with radiused blades · Steel
Drivetrain
Check drivetrain wear →Archived: Group: Shimano TY300 rear · Shifters: Shimano RevoShift 35, 7-speed · Rear derailleur: Shimano TY300 rear · Crankset: Forged alloy crank, 152mm, with 40T chainring · Bottom bracket: Sealed cartridge · Cassette: Shimano freewheel, 14-28, 7-speed · Chain: KMC HV500
Brakes
Inspect the brakes →Archived: Brakes: Alloy linear pull type with alloy short reach levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24 · Wheels: Alloy 36H rims with small flange nutted hubs and 14G black electroplated spokes · Front tire: Brooklyn Speedway, 24 x 2.125” · Rear tire: Brooklyn Speedway, 24 x 2.125”
Controls and contact points
Archived: Headset: Standard threaded type, 1 1/8” · Handlebar: Comfort riser type · Stem: Hi-rise comfort type, 40 ̊ rise x 90mm extension with 150mm quill · Seatpost: Pillar, 27.2 x 300mm, with 31.8mm alloy clamp · Saddle: Jamis Youth Comfort with embossed vinyl and single loop springs · Pedals: Comfort style pedals with non-slip TPE insert
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Gallery
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




