Jamis DXT A3 - 2020

Jamis DXT A3
$519.99
Color:
Charcoal
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Details

The dual-sport DXT’s are pumped-up, go-anywhere/do-anything versions of our Allegro fitness bikes. With more gearing range to take on steeper hills and tougher terrain. Wider tires with a trail-capable tread for access to more riding areas, both paved and packed. And disc brakes and suspension forks for real off-road exploration and off-pavement adventure.

Go Anywhere. Do Anything
The drivetrains on our DXT bikes feature long cage ATB rear derailleurs, full-size triple chainring cranksets and big 11-34 or 32T cassette blocks. This gives you the dual advantage of having high road bike gearing for controlled pedaling at speed on descents and low mountain bike gearing for easier pedaling uphill.

Absolute Versatility
Every DXT offers a full complement of eyelets and rack mounts to simplify installation of carriers and fenders. We even include bosses on the underside of the seatstays for installation of a ring lock. Ring locks are tremendously popular in Europe. A simple turn of the key immobilizes the rear wheel and prevents someone from riding off with your bike.

Adjustable Cockpit Height
Proper fit on your bike is critical for maximum performance and comfort. That’s why we offer the ATS patented adjustable threadless steering system on the DXT Elite models. Whether you want to fine tune your ride and establish the perfect fit, or change it regularly to suit different terrain, with this stem, adjusting your handlebar height is as easy as adjusting your seat post height.

Suspension When You Need It, Lockout When You Don't
The advantage of a suspension fork should be intuitively clear: hit a bump and absorb it. Hit a bump and stay in control of your bike. But suspension isn’t always desirable. When riding on smooth pavement or climbing, pedaling energy and power can be absorbed and dissipated by the movement (bobbing) of the fork. Enter lockout. With a flip of a knob on the top of the fork, the fork’s travel can be locked from movement, allowing the bike to be 100% responsive to pedaling input.

Giving You a Brake
The advantages of disc brakes over rim brakes on a versatile bike like the DXT far exceed their sole disadvantage, weight gain. Besides their incredible power and modulation, they’re just plain safer, especially in the rain. Once rims get wet or muddy, using friction to stop the wheel at its circumference is less efficient than using friction to stop a less wet or muddy small diameter disc near the center of the wheel from rotating. And eliminating the rim from braking surface duties results in a longer lasting wheel.

Full Shimano Shifting System
Fully integrated shifting systems offer the most precise and reliable performance. That’s why every DXT offers Shimano shifters, Shimano front and rear derailleurs, Shimano cranksets and Shimano cassettes.

Fast Rollers
The advantage of large diameter wheels is getting a lot of press these days with all the noise and news about 29’er mountain bikes. We like to think that the DXT is one of the original 29’ers. With big 700c hoops (same as a 29’er) that roll over bumps & holes better than smaller diameter 26” or 27.5” wheels, and with a bigger contact patch for greater traction and control. But in the case of the DXT, with a smaller 40c width & smoother tread that significantly reduces rolling resistance over fatter, knobbier mountain bike tires for faster sailing on streets and paths.

- 6061 aluminum frame
- SR/Suntour SF15-NVX-DS fork
- Alex TD26 disc specific double wall alloy wheel set
- 7-speed Shimano Tourney components
- Tektro MD-280 cable-actuated disc brakes

Specs

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
Fork SR/Suntour SF15-NVX-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8" steerer, 75mm travel
Headset Internal Cup, threadless, 1 1/8"
Rims/Wheels 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
Crankset Forged alloy crank with chain guard, 170mm (15-17"), 175mm (19-23")
Chainrings 48/38/28T
Bottom Bracket VP sealed cartridge, 68 x 122.5mm
Chain KMC Z7
Front Derailleur Shimano TY300
Rear Derailleur TY510 top swing
Cassette/Rear Cogs Shimano CS-HG200, 7-speed, 12-32T
Shifters Shimano Rapid Fire SL-EF41, 2-speed
Handlebars Jamis Riser bar, double-butted aluminum, 25.4 x 10° sweep x 20mm rise x 640mm (15"), 660mm (17-23")
Tape/Grips MTB Type Grip
Stem Jamis Trekking, 3D forged alloy, 15° rise, Length-60mm (15-17”), 90mm (19-23”)
Brake Levers Shimano EF41
Brakes Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotor
Pedals Platform style
Saddle Jamis Touring with SL cover
Seat Post Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin

* Subject to change without notice.

Part Numbers

Option UPC MPN
Charcoal / 15-inch 845436074603 03-2874CL
Charcoal / 17-inch 845436074610 03-2875CL
Charcoal / 19-inch 845436074627 03-2876CL
Charcoal / 21-inch 845436074634 03-2877CL
Charcoal / 23-inch 845436074641 03-2878CL

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