The GT Timberline Sport is a commuter/comfort bike with an aluminum frame. The frame comes in unspecified or Dark  Gray. It was first released in 2007 and again in 2008 for $449 brand new. Due to the frame materials and other factors, we estimate that this bike weighs around 30 pounds. The Timberline Sport is fully rigid.

Components

The Timberline Sport comes with various commuter bike components, including an adjustable, quill Adjustable stem and a threadless sealed headset.

Drivetrain

The Timberline Sport has 8 speeds and has a Shimano derailleur.

Wheels

It comes with Tioga City Slicker tires (26in x NaN) and aluminum, ATB CNC rims.

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Specs

Type Commuter, Comfort
MSRP $450
Year 2007, 2008
Alt. Names ThumperSport, Thumper Sport, TimberlineSport, Timberline Sport