
Velopedia Bicycle Archive
2022 Jamis DXT A3 Step-Thru
Hybrid bicycle from the Velopedia specification archive.
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What Velopedia knows
- Model year
- 2022
- Category
- Hybrid
- Original MSRP
- $679.95
- Sizes
- 14, 18, 20
- Colors
- Seafoam
- Weight
- 31.75 lbs
- Geometry
- 3 manufacturer sizes · Geometry context
- Record coverage
- 23 preserved details · archived image · original MSRP · preserved geometry
- Archive ID
- 900001700
Frameset
| Frame Construction | Size Specific Design 6061 aluminum with fast back rear triangle, 1 1/8” head tube, internal cable routing, chain stays disc brake mounts, 34.9mm seat tube, kickstand mount, replaceable derailleur hanger, fender/rack eyelets and ring lock mount eyelets. |
|---|---|
| Frame Material | Aluminum |
| Fork | SR/Suntour NVX-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, 75mm travel |
| Fork Material | Aluminum |
Drivetrain
| Component Group | Shimano TY300 rear and TY510 top swing front |
|---|---|
| Shifters | Shimano Rapid Fire SL-EF500, 2-speed |
| Front Derailleur | Shimano TY300 rear and TY510 top swing front |
| Rear Derailleur | Shimano TY300 rear and TY510 top swing front |
| Crankset | Forged alloy crank with chain guard, 48/38/28T, 170mm |
| Bottom Bracket | VP sealed cartridge, 68 x 122.5mm |
| Cassette | Shimano CS-HG200, 7-speed, 12-32T |
| Chain | KMC Z7 |
| Pedals | Platform style |
Brakes
| Brakes | Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotors and Shimano EF41 levers |
|---|
Cockpit & Contact Points
| Headset | Internal Cup, threadless, 1 1/8” |
|---|---|
| Handlebar | Jamis Riser bar, double-butted aluminum, 25.4 x 10 ̊ sweep x 20mm rise x 640mm (14-18”), 660mm (20”) |
| Stem | Jamis Trekking, 3D forged alloy, 15 ̊ rise, Length-60mm |
| Saddle | NEW Jamis Touring Women’s with SL cover |
| Seatpost | Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin |
Wheels & Tires
| Wheels | Alex TD26 disc specific double wall alloy rims, 32H, alloy disc hubs with QR and 14g black electroplated spokes |
|---|---|
| Front Tire | CST Dual Sport Tire, 700 x 42c |
| Rear Tire | CST Dual Sport Tire, 700 x 42c |
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 | 14 | 18 | 20 |
|---|---|---|---|
| Effective top tube | 557 mm | 557 mm | 570 mm |
| Head tube | 125 mm | 131 mm | 135 mm |
| Head-tube angle | 70° | 70.5° | 71.5° |
| Seat-tube angle | 73.5° | 74° | 73.5° |
| Chainstay / rear center | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1057 mm | 1057 mm | 1053 mm |
| Bottom-bracket drop | 60 mm | 60 mm | 60 mm |
| Reach | 376 mm | 380 mm | 384 mm |
| Stack | 632 mm | 640 mm | 648 mm |
| Standover height | 641 mm | 664 mm | 662 mm |
| Fork offset / rake | 40 mm | 40 mm | 40 mm |
Geometry source: Jamis first-party geometry table (2021 GEO - DXT) ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
14 geometry
Archive context: Its wheelbase of 1057 mm sits toward the shorter end. The chainstay of 440 mm sits somewhat shorter than typical. Its stack of 632 mm sits somewhat taller than typical.
Compared with 21 distinct hybrid geometries in the Small-equivalent size cohort from model years 2021–2024 in the Velopedia archive.18 geometry
Archive context: The seat angle of 74° sits toward the steeper end. Its wheelbase of 1057 mm sits toward the shorter end. The chainstay of 440 mm sits somewhat shorter than typical.
Compared with 20 distinct hybrid geometries in the Medium-equivalent size cohort from model years 2021–2024 in the Velopedia archive.20 geometry
Archive context: Its wheelbase of 1053 mm sits toward the shorter end. The head angle of 71.5° sits toward the steeper end. The seat angle of 73.5° sits toward the steeper end.
Compared with 20 distinct hybrid geometries in the Large-equivalent size cohort from model years 2021–2024 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (4)
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 →
- BrakesMake sure both cables move freely and the calipers release cleanly. Check pad thickness, rotor wear and rotor alignment.Inspect the brakes →
- SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing play.Evaluate the suspension →
- 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 20 checks based on 6 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: 2022 Jamis DXT A3 Step-Thru · Hybrid · Published sizes: 14, 18, 20
Frame and fork
Inspect the frame and fork →Archived: Frame: Size Specific Design 6061 aluminum with fast back rear triangle, 1 1/8” head tube, internal cable routing, chain stays disc brake mounts, 34.9mm seat tube, kickstand mount, replaceable derailleur hanger, fender/rack eyelets and ring lock mount eyelets. · Fork: SR/Suntour NVX-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, 75mm travel · Aluminum
Suspension
Evaluate the suspension →Archived: Fork: SR/Suntour NVX-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, 75mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Shimano TY300 rear and TY510 top swing front · Shifters: Shimano Rapid Fire SL-EF500, 2-speed · Front derailleur: Shimano TY300 rear and TY510 top swing front · Rear derailleur: Shimano TY300 rear and TY510 top swing front · Crankset: Forged alloy crank with chain guard, 48/38/28T, 170mm · Bottom bracket: VP sealed cartridge, 68 x 122.5mm · Cassette: Shimano CS-HG200, 7-speed, 12-32T · Chain: KMC Z7
Brakes
Inspect the brakes →Archived: Brakes: Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotors and Shimano EF41 levers
Wheels and tires
Check wheels and tires →Archived: Wheels: Alex TD26 disc specific double wall alloy rims, 32H, alloy disc hubs with QR and 14g black electroplated spokes · Front tire: CST Dual Sport Tire, 700 x 42c · Rear tire: CST Dual Sport Tire, 700 x 42c
Controls and contact points
Archived: Headset: Internal Cup, threadless, 1 1/8” · Handlebar: Jamis Riser bar, double-butted aluminum, 25.4 x 10 ̊ sweep x 20mm rise x 640mm (14-18”), 660mm (20”) · Stem: Jamis Trekking, 3D forged alloy, 15 ̊ rise, Length-60mm · Seatpost: Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin · Saddle: NEW Jamis Touring Women’s with SL cover · Pedals: Platform style
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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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




