
Velopedia Bicycle Archive
2026 Jamis Allegro A3
Hybrid bicycle from the Velopedia specification archive.
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What Velopedia knows
- Model year
- 2026
- Category
- Hybrid
- Original MSRP
- $559.95
- Sizes
- 15, 17, 19, 21, 23
- Colors
- Matte Black or Cayenne
- Weight
- 27.25lbs
- Geometry
- 5 manufacturer sizes · Geometry context
- Record coverage
- 22 preserved details · 6 archived images · original MSRP · preserved geometry
- Archive ID
- 900001693
Frameset
| Frame Construction | Size Specific Design 6061 aluminum with fast back rear triangle, internal cable routing, hydro-formed top and down tube, taper gauge “S” bend stays, kickstand mount, replaceable derailleur hanger and fender/rack eyelets |
|---|---|
| Frame Material | Aluminum |
| Fork | Hi-Ten tapered straight blade unicrown with bulge butted steerer, low-rider carry mounts and forged dropouts with 2 fender eyelets |
Drivetrain
| Component Group | Shimano RD-TY300 rear and Shimano FD-TY510 top swing front |
|---|---|
| Shifters | Shimano EZ-Fire Plus ST-EF500 shifters, 21-speed |
| Front Derailleur | Shimano RD-TY300 rear and Shimano FD-TY510 top swing front |
| Rear Derailleur | Shimano RD-TY300 rear and Shimano FD-TY510 top swing front |
| Crankset | Forged alloy, 48/38/28T, 170mm with chain guard |
| Bottom Bracket | VP sealed cartridge, 68 x 122.5mm |
| Cassette | Shimano CS-HG200, 7-speed 12-32T |
| Chain | KMC Z51 |
| Pedals | Platform style, steel cage/resin body |
Brakes
| Brakes | Promax TX-121 linear-pull with front power modulator and Shimano levers |
|---|
Cockpit & Contact Points
| Headset | Internal cup, threaded, 1 1/8” |
|---|---|
| Handlebar | Jamis Riser bar, aluminum, 25.4 x 10 ̊ sweep x 40mm rise x 600mm (15-17”) 620mm (19-23”) |
| Stem | Jamis alloy hi-rise, quill type, 35 ̊ rise, 80mm extension, 150mm (15”), 180mm (17-23”) |
| Saddle | NEW Jamis Touring with SL cover |
| Seatpost | Jamis alloy micro-adjust, 27.2 x 350mm, alloy clamp with QR seatpin |
Wheels & Tires
| Wheels | Double wall alloy rims, 32H, alloy hubs with QR and 14g spokes |
|---|---|
| Front Tire | Kenda Eurotrek K-197, 700 x 35c |
| Rear Tire | Kenda Eurotrek K-197, 700 x 35c |
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 | 15 | 17 | 19 | 21 | 23 |
|---|---|---|---|---|---|
| Effective top tube | 569 mm | 570 mm | 577 mm | 589 mm | 601 mm |
| Head tube | 121 mm | 147 mm | 173 mm | 195 mm | 219 mm |
| Head-tube angle | 72° | 72° | 72° | 73° | 73° |
| Seat-tube angle | 73° | 73° | 73° | 73° | 73° |
| Chainstay / rear center | 440 mm | 440 mm | 445 mm | 445 mm | 445 mm |
| Wheelbase | 1048 mm | 1048 mm | 1063 mm | 1064 mm | 1076 mm |
| Bottom-bracket drop | 57.5 mm | 57.5 mm | 55 mm | 55 mm | 55 mm |
| Reach | 402 mm | 392 mm | 396 mm | 401 mm | 406 mm |
| Stack | 545 mm | 569 mm | 592 mm | 616 mm | 639 mm |
| Standover height | 726 mm | 757 mm | 798 mm | 836 mm | 867 mm |
| Fork offset / rake | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm |
Geometry source: Reviewed manufacturer geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
15 geometry
Archive context: Its reach of 402 mm sits toward the longer end. The head angle of 72° sits toward the steeper end. Its bottom-bracket drop of 57.5 mm sits toward the shallower-drop end.
Compared with 12 distinct hybrid geometries in the XS-equivalent size cohort from model years 2024–2027 in the Velopedia archive.17 geometry
Archive context: The head angle of 72° sits toward the steeper end. Its wheelbase of 1048 mm sits toward the shorter end. Its bottom-bracket drop of 57.5 mm sits somewhat shallower than typical.
Compared with 22 distinct hybrid geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.19 geometry
Archive context: The head angle of 72° sits toward the steeper end. Its wheelbase of 1063 mm sits toward the shorter end. Its bottom-bracket drop of 55 mm sits toward the shallower-drop end.
Compared with 24 distinct hybrid geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.21 geometry
Archive context: The head angle of 73° sits toward the steeper end. Its wheelbase of 1064 mm sits toward the shorter end. Its bottom-bracket drop of 55 mm sits toward the shallower-drop end.
Compared with 22 distinct hybrid geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.23 geometry
Archive context: The head angle of 73° sits toward the steeper end. Its wheelbase of 1076 mm sits toward the shorter end. Its bottom-bracket drop of 55 mm sits toward the shallower-drop end.
Compared with 18 distinct hybrid geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (3)
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 the full range under light load, measure chain wear and inspect the cassette or freewheel teeth. Skipping or hesitation can indicate wear, poor adjustment or mismatched parts.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: 2026 Jamis Allegro A3 · Hybrid · Published sizes: 15, 17, 19, 21, 23
Frame and fork
Inspect the frame and fork →Archived: Frame: Size Specific Design 6061 aluminum with fast back rear triangle, internal cable routing, hydro-formed top and down tube, taper gauge “S” bend stays, kickstand mount, replaceable derailleur hanger and fender/rack eyelets · Fork: Hi-Ten tapered straight blade unicrown with bulge butted steerer, low-rider carry mounts and forged dropouts with 2 fender eyelets
Drivetrain
Check drivetrain wear →Archived: Group: Shimano RD-TY300 rear and Shimano FD-TY510 top swing front · Shifters: Shimano EZ-Fire Plus ST-EF500 shifters, 21-speed · Front derailleur: Shimano RD-TY300 rear and Shimano FD-TY510 top swing front · Rear derailleur: Shimano RD-TY300 rear and Shimano FD-TY510 top swing front · Crankset: Forged alloy, 48/38/28T, 170mm with chain guard · Bottom bracket: VP sealed cartridge, 68 x 122.5mm · Cassette: Shimano CS-HG200, 7-speed 12-32T · Chain: KMC Z51
Brakes
Inspect the brakes →Archived: Brakes: Promax TX-121 linear-pull with front power modulator and Shimano levers
Wheels and tires
Check wheels and tires →Archived: Wheels: Double wall alloy rims, 32H, alloy hubs with QR and 14g spokes · Front tire: Kenda Eurotrek K-197, 700 x 35c · Rear tire: Kenda Eurotrek K-197, 700 x 35c
Controls and contact points
Archived: Headset: Internal cup, threaded, 1 1/8” · Handlebar: Jamis Riser bar, aluminum, 25.4 x 10 ̊ sweep x 40mm rise x 600mm (15-17”) 620mm (19-23”) · Stem: Jamis alloy hi-rise, quill type, 35 ̊ rise, 80mm extension, 150mm (15”), 180mm (17-23”) · Seatpost: Jamis alloy micro-adjust, 27.2 x 350mm, alloy clamp with QR seatpin · Saddle: NEW Jamis Touring with SL cover · Pedals: Platform style, steel cage/resin body
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.




