Jamis
Jamis: DXT A1 Step-Over

Jamis

Jamis: DXT A1 Step-Over

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Description

Jamis: DXT A1 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 A1 is also available in a standard model.

 

COLOR

Deep Blue

 

SIZE

14", 18", 20"

 

SPECIFICATIONS

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.

Fork

SR/Suntour NVX HLO, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, aluminum crown, hydraulic lock out, 75mm travel

Headset

FSA Internal cup, threadless 1 1/8”

Wheels

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

Derailleurs

MicroShift Advent Active Motion RD+ with clutch real derailleur

Shift levers

MicroShift Advent Xpress shifter with bearing, 9-speed

Chain

KMC Z9

Cassette

MicroShift 9-speed, 11-42T

Crankset

SAMOX Alloy forged crank with 32T steel chainring(BCD104). 170mm

BB Set

FSA sealed cartridge, 68 x 110.5mm

Pedals

Full alloy platform, toe clip attachable

Brakeset

Tektro HD-276 hydraulic disc brakes with 83mm reach, 160mm rotors and Tektro brake levers.

Handlebar

Jamis Riser bar, 6061 double-butted aluminum, 31.8 x 20mm rise x 10 ̊ sweep x 640mm (14-18”), 660mm (20”)

Stem

Jamis Trekking, 3D forged alloy, 10 ̊ rise, 90mm

Grips

Anatomic double density kraton grip with gel

Seat Post

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

Saddle

Selle Royal Vivo ERGO Women's

Weight 29.75 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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