Jamis
Jamis: DXT A3 Step-Over

Jamis

Jamis: DXT A3 Step-Over

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Description

Jamis: DXT A3 Step-Over - 2023

DXT Series

These dual-sport bikes are pumped up, go-anywhere/do-anything versions of Jamis's 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. 

 

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.

 

The DXT A3 is also available in a standard model.

 

COLOR

Seafoam

 

SIZE

14", 18", 20"

 

SPECIFICATIONS

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-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, 75mm travel

Headset

FSA Internal cup, threadless 1 1/8”

Wheels

Alex TD26 disc specific double wall alloy rims, 32H, alloy disc hubs with QR and 14g black electroplated spokes

Tires

CST Dual Sport Tire, 700 x 42c

Derailleurs

Shimano TY300 rear and TY510 top swing front

Shift levers

Shimano Rapid Fire SL-EF500, 2-speed

Chain

KMC Z7

Cassette

Shimano CS-HG200, 7-speed, 12-32T

Crankset

Forged alloy crank with chain guard, 48/38/28T, 170mm

BB Set

FSA sealed cartridge, 68 x 122.5mm

Pedals

Platform style

Brakeset

Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotors and Shimano EF41 levers

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

Grips

ERGO Type Grip

Seat Post

Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin

Saddle

NEW Jamis Touring Women's with SL cover

Weight 31.75 lbs

*Specifications are subject to change without notice. All bike and frame weights are based off pre-production painted frames. Weights may vary in final production.

 

 

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