Jamis DXT A3 STEP-OVER 2021
2021 Urban
Estimate price |
599$
Weight | 14.4 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 700c -
Travel Front 75mm -
Fork SunTour
-
Groupset Tourney, Shimano -
Suspension Hardtail -
Drivetrain 3 × 7 -
Brakes Mechanical Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
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.
Suspension Fork
SR/Suntour NVX-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, 75mm travel>
Drivetrain
Rear Derailleur
Shimano TY300
Front Derailleur
TY510 top swing
Shift Levers
Shimano Rapid Fire SL-EF500, 21-speed
Cassette
Shimano CS-HG200, 7-speed, 12-32T
Crank
Forged alloy crank with chain guard, 48/38/28T, 170mm
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, 32H, alloy disc hubs with QR and 14g stainless steel spokes
Tires
CST Dual Sport Tire, 700 x 42c
Brakes
Brakes
Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotors and Shimano EF41 levers
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
ERGO Type Grip
Headset
Internal Cup, threadless, 1 1/8”
Seat
Saddle
Jamis Touring Women’s with SL cover
Seatpost
Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin
Fit data
Geometry
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 A3 STEP-OVER is part of the Jamis Dxt model. Jamis released 33 bikes variations of this model so far. You can easily view all of the Jamis Dxt bikes models from 2021, here.
Model range prices
Jamis DXT A3 STEP-OVER 2021 is the most economical model, with a starting price of 599$. Jamis DXT A1 2021 on the other hand costs 979$, and is the most expensive model.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Fitness bikes average price
According to our math, the average price for a trustworthy Fitness bike is 656$. However, even if your budget is less than the average, you might still be able to get a top-quality Fitness bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
When Jamis released this model in 2021, its price was 599$. In conclusion, this bike price is 9.52% lower than the price of the average Fitness bike.
Fitness bikes average weight
The average weight for Fitness bikes is 11.24 kg (24.78 lbs). An easier bike will give you a big advantage in climbs. However, a heavier bike can gain speed when you descend.
much heavier than average, DXT A3 STEP-OVER has a weight of 14.4 kg (31.75 lbs). In other words, this model is 28.11% heavier than the average Fitness bike.
Internal Cable Routing
It’s also important to mention the internal cable routing that this bike has. In short, this will allow you to keep your bike cables in great condition. Say goodbye to hanging cables.
DXT A3 STEP-OVER components
Fork
The fork installed on this bike is the SunTour model. The travel on this model is 75mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In short, you should always ensure you have a good fork when purchasing a bike.
Fork material
The fork is made out of aluminum, which is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels
When it comes to wheels, the DXT A3 STEP-OVER bike is equipped with the 700c aluminum model. 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
Stopping the bike when needed, it’s essential for your safety. This bike has Mechanical Disc brakes. These brakes are also very popular, and a lot cheaper than hydraulic disk brakes. However, performance-wise there is room for improvement.