The GT ZuM 4.0 is a commuter/city/mountain bike with an aluminum T6 / ZuM / GT Triple Triangle tube- frame. The frame comes in colors like red, unspecified and Light  Silver.

Originally released in 2005, 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 ZuM 4.0 has fork suspension with 50-60mm travel.

Components

The ZuM 4.0 comes with various commuter bike components, including a threadless, four-bolt GT ATB stem, an integrated FSA headset and Shimano shifters.

Drivetrain

The ZuM 4.0 has 8 speeds and has a Shimano Acera derailleur.

Wheels

It comes with Tioga City Slicker tires (26in x NaN) and aluminum, double-wall, Alex DA-22 CNC rims.

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Specs

Type Commuter, City, Mountain
Year 2005, 2006, 2007
Alt. Names ZuM4.0, ZuM 4.0, Zu-M4.0, Zu-M 4.0