Jamis DXT A2 STEP-OVER 2020
Bike details
Key information split into simple groups.
Bike summary
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Frame Aluminum
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Wheels 700c
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Travel Front 75mm
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Fork SunTour
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Groupset Acera, Altus
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Suspension Hardtail
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Drivetrain 3 × 8
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Brakes Hydraulic Disc
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
Size Specific Design 6061 aluminum with redesigned rear triangle, 1 1/8” head tube, seat stays disc brake mounts, 34.9mm seat tube, replaceable derailleur hanger, fender/rack eyelets and ring lock mount eyelets
Suspension Fork
SR/Suntour SF15-NVX HLO, aluminum lowers, coil spring, 28mm stanchions, 1-1/8" steerer, aluminum crown, hydraulic lock out, 75mm travel
Drivetrain
Rear Derailleur
Shimano Acera RD-M360
Front Derailleur
Altus FD-M310 top swing
Shift Levers
Shimano Altus Rapid Fire SL-M315, 24-speed
Cassette
Shimano HG31, 8-speed, 11-32T
Crank
SR/Suntour XCC, 48/38/28T, 170mm (15-17”), 175mm (19-23”)
Bottom Bracket
VP sealed cartridge, 68 x 122.5mm
Chain
KMC Z7
Pedals
Platform style
Wheels
Rims
Alex TD26 disc specific double wall alloy rims, 36H, alloy disc hubs with QR and 14g stainless steel spokes
Tires
CST Dual Sport Tire, 700 x 42c
Brakes
Brakes
Tektro HD-M275/276 hydraulic disc brakes with 160mm rotors and Tektro brake levers. 15" M276 (83mm reach); 17-23" M275 (88mm reach)
Cockpit
Stem
Jamis Trekking, 3D forged alloy, 15? rise, Length-60mm (15-17”), 90mm (19-23”)
Handlebar
Jamis Riser bar, double-butted aluminum, 25.4 x 10? sweep x 20mm rise x 640mm (15"), 660mm (17-23")
Grips
MTB Type Grip
Headset
Internal Cup, threadless, 1 1/8”
Seat
Saddle
Jamis Touring with SL cover
Seatpost
Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin
Fit data
Numbers for sizing and ride feel.
| Size | 14" | 18" | 20" |
|---|---|---|---|
| Stack Reach Ratio | 1.67 mm | 1.67 mm | 1.68 mm |
| Front Center | 624 mm | 624 mm | 620 mm |
| Rake | 40 mm | 40 mm | 40 mm |
| Trail | 81 mm | 79 mm | 71 mm |
| Stack | 639 mm | 647 mm | 655 mm |
| Reach | 383 mm | 387 mm | 391 mm |
| Top Tube Length | 570 mm | 570 mm | 583 mm |
| Seat Tube Angle | 73.5 ° | 74 ° | 73.5 ° |
| Seat Tube Length | 356 mm | 457 mm | 508 mm |
| Head Tube Angle | 70.5 ° | 71 ° | 72 ° |
| Head Tube Length | 125 mm | 131 mm | 135 mm |
| Chainstay Length | 447 mm | 447 mm | 447 mm |
| Wheelbase | 1064 mm | 1064 mm | 1060 mm |
| Bottom Bracket Drop | 60 mm | 60 mm | 60 mm |
| Standover Height | 648 mm | 671 mm | 669 mm |
| Wheels | 700 | 700 | 700 |
About this model
DXT A2 STEP-OVER belongs to the Jamis Dxt model. 33 bikes variations carry this model name so far. You can easily view all of the Jamis Dxt bikes models from 2020, here.
Model range prices
The most economical model, the Jamis DXT A3 STEP-OVER 2020 has a starting price of 519$. Jamis DXT A1 2020 on the other hand is the most expensive at 799$.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Fitness bikes
Our math shows that the average cost of a dependable Fitness bike is 656$. However, even if your budget is less than the average, you might still be able to get a top-quality Fitness bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, this bike was made available in 2020 for 619$. Doing a quick comparison, we notice that DXT A2 STEP-OVER price is 5.98% lower than the average cost of a Fitness bike.
Fitness bikes average weight
Fitness bikes weigh an average of 11.24 kg (24.78 lbs). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
With a weight of 14.06 kg (31 lbs), Jamis bike is much heavier than average. In conclusion, the average Fitness bike weighs 25.09% less than DXT A2 STEP-OVER.
Overview of components
Fork
This bike has the SunTour fork installed. The fork’s travel is 75mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. To sum up, when buying a bicycle, make sure you get a fork that is capable of delivering decent travel.
Fork material
When it comes to the fork, this bike has an aluminum one, which is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels
The DXT A2 STEP-OVER 2020 bike is equipped with 700c aluminum wheels when leaving the factory. These wheels are the most used kind for road bikes in general. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The DXT A2 STEP-OVER comes with Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
