Jamis DXT A1 Step-Over Frame 2021
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 microSHIFT Advent
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Suspension Hardtail
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Drivetrain 1 × 9
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Brakes Hydraulic Disc
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
Size Specific Design Triple-butted 6061 aluminum with fast back rear triangle, 1 1/8” head tube, internal cable routing, oval chain stays with post mount disc brake with kickstand mount, 34.9mm seat tube, replaceable derailleur hanger and fender/rack eyelets.
Suspension Fork
SR/Suntour NVX HLO, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, aluminum crown, hydraulic lock out, 75mm travel
Drivetrain
Rear Derailleur
MicroShift Advent Active Motion RD+ with clutch real deraillier
Shift Levers
MicroShift Advent Xpress shifter with bearing, 9-speed
Cassette
MicroShift 9-speed, 11-42T
Crank
SAMOX Alloy forged crank with 32T steel chainring(BCD104), 170mm
Bottom Bracket
FSA sealed cartridge, 68 x 110.5mm
Chain
KMC Z9
Pedals
Full alloy platform, toe clip attachable
Wheels
Rims
WTB STX i23 TCS (UST Tubeless Compliant System) disc rims, 32H, Joytec disc hubs and 14g stainless steel spokes
Tires
CST Dual Sport Tire, 700 x 42c
Brakes
Brakes
Tektro HD-276 hydraulic disc brakes with 83mm reach, 160mm rotors and Tektro brake levers.
Cockpit
Stem
Jamis Trekking, 3D forged alloy, 10 ? rise, 90mm
Handlebar
Jamis Riser bar, 6061 double-butted aluminum, 31.8 x 20mm rise x 10 ? sweep x 640mm (14-18”), 660mm (20”)
Grips
Anatomic double density kraton grip with gel
Headset
FSA Internal cup, threadless 1 1/8”
Seat
Saddle
Selle Royal Vivo ERGO Women’s
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 | 90 mm | 88 mm | 81 mm |
| Stack | 639 mm | 647 mm | 655 mm |
| Reach | 383 mm | 387 mm | 391 mm |
| Top Tube Length | 564 mm | 564 mm | 577 mm |
| Seat Tube Angle | 73.5 ° | 74 ° | 73.5 ° |
| Seat Tube Length | 356 mm | 457 mm | 508 mm |
| Head Tube Angle | 70 ° | 70.5 ° | 71.5 ° |
| 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 |
Model Overview
DXT A1 Step-Over Frame completes the Jamis Dxt model. 33 bikes variations carry this model name so far. Take a sneak peek at all Jamis Dxt bikes models from 2021, by clicking 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.
Average price for Fitness bikes
According to our calculations, the average cost of a Fitness bike that is reliable is 656$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Fitness bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 979$. Comparing this to the average Fitness bike price, we see that the price is 49.24% more expensive.
Average weight for Fitness bikes
If we make a quick analysis of the average weight of a Fitness bike, we get 11.24 kg (24.78 lbs). You will have a greater advantage on climbs if your bike is easier than the average. On descents, however, a heavier bike will give you extra speed.
With a weight of 13.49 kg (29.74 lbs), Jamis bike is much heavier than average. To sum up, it’s 20.02% heavier than the average weight of Fitness bikes.
Internal Cable Routing
This bike has an internal cable routing. As a result, this helps to preserve the bike’s cables. No more cables around your bike.
DXT A1 Step-Over Frame components
Fork
Jamis DXT A1 Step-Over Frame 2021 bike is equipped with the SunTour fork, and has 75mm travel. Bike forks are great for shock absorption and provide you with a smooth ride. In conclusion, always look for a fork with decent travel when you buy a bike.
Fork material
DXT A1 Step-Over Frame has an aluminum fork, which doesn’t add too much extra weight to the bike. However, it is not so stiff as steel or carbon forks are.
Wheels
As for the wheels, Jamis DXT A1 Step-Over Frame 2021, has a 700c aluminum model. These wheels are the most used kind for road bikes in general. However, these wheels don’t perform so well when passing over obstacles.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, these are ideal for anyone.
