Velopedia Bicycle Archive

2022 Jamis DXT A2 Step-Over

Original specifications: Shimano Acera RD-M360 rear and Shimano FD-TY710-2 front drivetrain · 31.0 lbs published weight · geometry for 3 published sizes.

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At a glance

Archive #900001702
Model year
2022
Category
Hybrid
Original MSRP
$829.95
Sizes
14, 18, 20
Colors
Frost
Weight
31.0 lbs
Geometry
3 manufacturer sizes
In this record
22 specifications · archived image · original MSRP · geometry
Campaign
Original buildAluminum · Shimano Acera RD-M360 rear and Shimano FD-TY710-2 front

Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

141820

Published colors

Frost

Frameset

Frame ConstructionSize 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 MaterialAluminum
ForkSR/Suntour NVX HLO, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, aluminum crown, hydraulic lock out, 75mm travel
Fork MaterialAluminum

Drivetrain

Component GroupShimano Acera RD-M360 rear and Shimano FD-TY710-2 front
ShiftersShimano Altus Rapid Fire SL-M315, 16-speed
Front DerailleurShimano Acera RD-M360 rear and Shimano FD-TY710-2 front
Rear DerailleurShimano Acera RD-M360 rear and Shimano FD-TY710-2 front
CranksetShimano FC-TY501-2, 46/30, 170mm
Bottom BracketVP sealed cartridge, 68 x 122.5mm
CassetteShimano HG31, 8-speed, 11-34T
ChainKMC Z7
PedalsPlatform style

Brakes

BrakesTektro HD-276 hydraulic disc brakes with 83mm reach, 160mm rotors and Tektro brake levers.

Cockpit & Contact Points

HeadsetInternal Cup, threadless, 1 1/8”
HandlebarJamis Riser bar, double-butted aluminum, 25.4 x 10 ̊ sweep x 20mm rise x 640mm (14-18”), 660mm (20”)
StemJamis Trekking, 3D forged alloy, 15 ̊ rise, Length-60mm
SaddleNEW Jamis Touring Women’s with SL cover
SeatpostJamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin

Wheels & Tires

WheelsAlex TD26 disc specific double wall alloy rims, 36H, alloy disc hubs with QR and 14g black electroplated spokes
Front TireCST Dual Sport Tire, 700 x 42c
Rear TireCST Dual Sport Tire, 700 x 42c

Geometry

3 sizes · 11 measurements

Frame measurements by size.

All geometry measurements3 sizes · 11 measurements
Measurement141820
Effective top tube557 mm557 mm570 mm
Head tube125 mm131 mm135 mm
Head-tube angle70°70.5°71.5°
Seat-tube angle73.5°74°73.5°
Chainstay / rear center440 mm440 mm440 mm
Wheelbase1057 mm1057 mm1053 mm
Bottom-bracket drop60 mm60 mm60 mm
Reach376 mm380 mm384 mm
Stack632 mm640 mm648 mm
Standover height641 mm664 mm662 mm
Fork offset / rake40 mm40 mm40 mm

Dimensions as recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes46/30T · 11–34T · 8-speed
Lowest0.88:1 Highest4.18:1 Total range474%
Estimated speed At 90 RPM Lowest gear6.6 mph Highest gear31.1 mph

Rear tire: 700C×42.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC Z7
Retailer offers
Front tire · Original
CST Dual Sport Tire

700 x 42c

Retailer offers
Shifters · Original
Shimano Altus Rapid Fire SL-M315

16-speed

More parts (5)Fewer parts
Seatpost · Original
Jamis alloy micro-adjust

31.6 x 350mm alloy clamp with QR seatpin

Retailer offers
Cassette · Original
Shimano HG31

8-speed, 11-34T

Brake pads · Original
Tektro HD-276 hydraulic disc brakes with 83mm reach

160mm rotors and Tektro brake levers.

Crankset · Original
Shimano FC-TY501-2

46/30, 170mm

Wheels · Original
Alex TD26 disc specific double wall alloy rims

36H, alloy disc hubs with QR and 14g black electroplated spokes

Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
CST Dual Sport Tire, 700 x 42c
Rear tire
CST Dual Sport Tire, 700 x 42c
Drivetrain
8-speed
Seatpost diameter
31.6 mm
Bottom bracket / shell
VP sealed cartridge, 68 x 122.5mm
Equipment inspection checks 11 checks based on 6 archived component groups Open equipment checksClose equipment checks
0 of 11 checked Progress stays in this browser for this record.

Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

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 HLO, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, aluminum crown, hydraulic lock out, 75mm travel · Aluminum

Archived: Fork: SR/Suntour NVX HLO, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, aluminum crown, hydraulic lock out, 75mm travel

Archived: Group: Shimano Acera RD-M360 rear and Shimano FD-TY710-2 front · Shifters: Shimano Altus Rapid Fire SL-M315, 16-speed · Front derailleur: Shimano Acera RD-M360 rear and Shimano FD-TY710-2 front · Rear derailleur: Shimano Acera RD-M360 rear and Shimano FD-TY710-2 front · Crankset: Shimano FC-TY501-2, 46/30, 170mm · Bottom bracket: VP sealed cartridge, 68 x 122.5mm · Cassette: Shimano HG31, 8-speed, 11-34T · Chain: KMC Z7

Archived: Brakes: Tektro HD-276 hydraulic disc brakes with 83mm reach, 160mm rotors and Tektro brake levers.

Archived: Wheels: Alex TD26 disc specific double wall alloy rims, 36H, 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

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Campaign

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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