1989 GT Timberline
1989 GT Timberline mountain bike features an Ishiwata chromoly Triple Triangle frame, Shimano Exage Trail drivetrain, and a chromoly unicrown fork for off-road use.
Description
Reaching the high country is easy on the GT Timberline. Its Triple Triangle Design™ frame with chromoly main tubes and a chromoly fork provide exceptional handling on all terrains. Shimano Exage Trail SIS derailleurs, Araya alloy rims, a chromoly GT All-Terra II stem, and Shimano’s Exage Mountain U-Brake will provide years of off-road reliability. The Timberline’s GT GelCel™ saddle and GT/AME anatomical grips offer unrivaled comfort and control. The 1989 Timberline features Black/White Cracked, or two other durable, high gloss finishes — Pearl Aqua or Electric Blue.
Technical specification
Geometry
- Sizes
- 15", 16", 18", 20", 22", 24" Mens; 16" Ladies
- Head tube angle
- 70
- Seat tube angle
- 74
Frame & Fork
- Frame material
- Chromoly
- Frame
- GT Triple Triangle w/Ishiwata Chromoly Main Tubes, Forged Rear Dropouts; Reinforced Seat Collar & Head Tube
- Fork
- GT All-Terra Chromoly Unicrown w/1-1/8" Blades w/Semi-Forged Dropouts
Drivetrain
- Crankset
- Shimano EXAGE 48/38/28T Black CR's; 170mm Alloy Crank Arms, Silver
- Bottom bracket
- Sealed Mech w/Japanese Axle
- Chain
- UG, Black
- Freewheel
- Shimano 6-Speed, 13-30T
- Shifters
- Shimano 6-Speed, 13-30T
- Pedals
- High Impact Nylon ATB, Toe Clip Adaptable
- Derailleurs
- Shimano EXAGE Trail
Wheels
- Rims
- Araya Alloy 26x1.50, Silver Anodized
- Tires
- Ritchey Quad 26x1.60 Skinwall
- Spokes
- UCP
- Hubs
- QR Front Alloy Sealed Mech; Alloy Rear w/Chromo Solid Axle, Sealed Mech
Cockpit & contact
- Handlebar
- GT Flat Tapered
- Stem
- GT All-Terra II Chromoly w/Roller; Anatomically Sized
- Grips
- ATB Rubber, Black
- Headset
- Sealed Mech, Black
- Saddle
- GT 'GELCEL' Lycra/Gel, Mens or Ladies
- Seat post
- Alloy, 300mm
- Seatpost clamp
- Chromo QR w/Rubber Cover
- Colour
- Black/White Cracked, Blue, Pearl Aqua
Brakes
- Brakes
- Shimano EXAGE Trail Cantilever Front & Rear
- Brake levers
- Shimano EXAGE Trail w/Shimano 2.0mm Wire and 6.0mm Housing
