1990 GT Karakoram
1990 GT Karakoram mountain bike pairs Tange double-butted chromoly tubing with Shimano Deore LX STI rapid-fire shifting for off-road performance.
Description
GT’s Karakoram boasts an impressive list of sophisticated features including the Shimano Deore LX STI group, Tioga Avenger OS headset, and the new GT pierced design OS chromoly stem. It’s competition bred geometry combined with Tange lightweight MTB double butted tubing results in a serious off-road contender. Effortless steering is provided by GT’s newly redesigned fork featuring OS steering column, improved rake, and greater tyre clearance.
GT All-Terra’s own toe clips and straps, GELCEL saddle with new EM cover, Instaflate C02 pump with regulator, and newly designed anatomical grips round out the impressive package that Karakoram presents for eager off-road enthusiasts. But we didn’t stop there. With its radical Purple Haze or Classic Gloss white finish the 1990 Karakoram has your name on it.
GEOMETRY
Head tube angle: 70°
Seat tube angle: 73.5°
Chainstay length: 16.5″
USEFUL INFORMATION
Seat Post internal diameter: TBC
Front Mech Band Diameter: TBC
Technical specification
Geometry
- Sizes
- 16", 18", 20", 22"
Frame & Fork
- Frame
- GT Triple Triangle, Tange MTB double butted tubing; 1-1/8" oversize reinforced head tube; internal cable routing; externally butted seat tube; 19mm double tapered seat stays; vertical forged rear dropouts
- Fork
- GT/ Spinner chromoly unicorn with oversize steering column; 1-1/8" blades with forged safety dropouts.
Drivetrain
- Crankset
- Shimano Deore LX STI SuperGlide round chainrings, 46/36/24T, crank arms anatomically sized
- Bottom bracket
- Shimano sealed mech
- Chain
- Shimano Deore LX STI HyperGlide
- Freewheel
- Shimano Deore LX STI HyperGlide Cassette, 7 speed, 12-28T
- Shifters
- Shimano Deore LX STI Rapid-Fire 7 speed
- Pedals
- Deore style
- Derailleurs
- Shimano Deore LX STI
Wheels
- Rims
- Araya RX-7 alloy 26x1.50, grey anodised, 36H
- Tires
- Ritchey Mega-Bite HardDrive 26x2.1
- Spokes
- 14G stainless steel
- Hubs
- Shimano Deore LX QR with rear cassette, 32H
Cockpit & contact
- Handlebar
- Chromoly flat tapered, anatomically sized.
- Stem
- GT/H.L. All-Terra full chromoly, internal routing, anatomically sized.
- Grips
- GT/A'ME anatomical ATB
- Headset
- Tioga Avenger oversize 1-1/8" sealed, black
- Saddle
- GT GELCEL racing, black
- Seat post
- Alloy micro-adjust, 300mm
- Seatpost clamp
- GT All-Terra heat treated alloy, black anodised with GT All-Terra QR skewer.
- Colour
- Purple Haze, White
Brakes
- Brakes
- Shimano Deore LX SLR breaking with front cantilever; rear U-brake, U-2 Fexguard; GT straddle cable crosser.
- Brake levers
- Shimano Deore LX 4-finger
Extras
GT InstaFlate C02 pump; GT All-Terra toe clips & straps; chain stay protector
