The Trek Jack 1 is a mountain bike with an aluminum Alpha frame. The frame has a Gloss  Navy finish. Originally released in 2006, there are 3 versions of this bike. Due to the frame materials and other factors, we estimate that this bike weighs around 35 pounds. The Jack 1 has fork suspension with 80-100mm travel.

Components

The Jack 1 comes with Mountain Mix and Shimano components, including a Bontrager stem, a semi Aheadset headset and integrated Shimano shifters.

Drivetrain

The Jack 1 has 8,9 speeds and has a Shimano derailleur.

Wheels

It comes with Bontrager Earl tires (26in x 2.4in) and aluminum, Bontrager Camino, Femco Sun rims.