Bicycle Archive · Specification report

1997 Giant ATX 990

Velopedia Archive ID 66783

Overview

Model year	1997
Brand	Giant
Model	ATX 990
Bicycle type	Mountain bike, front & rear suspension
Archive ID	66783
Original MSRP	$2,274.95
Colors	Yellow w/red swingarm
Sizes	Large, medium, small
Weight	29.2 lb

Frameset

Frame construction	TIG-welded
Frame material	Giant CU92 aluminum, butted
Fork	Rock Shox Judy XC
Fork material	Magnesium, triple-clamp crown
Rear shock	Rock Shox Coupe Deluxe, 4.0" travel

Drivetrain

Component group	Shimano Deore XT/LX
Shifters	Grip Shift SRT-800 X-Ray
Front derailleur	Shimano Deore XT top-swing, top-pull/clamp-on 35.0 mm
Rear derailleur	Shimano Deore XT SGS
Crankset	Shimano Deore LX, 22/32/42 teeth
Bottom bracket	Shimano BB-UN72, 107 mm spindle
BB shell width	68mm English
Rear cogs	8-speed, 11 - 28 teeth
Chain	Sachs SC-40, 1/2 x 3/32"
Pedals	Wellgo WPD-701 w/titanium axle clipless

Brakes

Brakes	Magura Race-Line HS33 brakes, Magura Race-Line levers

Cockpit & contact points

Headset	1 1/8" threadless Dia-Compe Kontak Aheadset SA-2
Handlebar	Aluminum
Handlebar extensions	Not included
Stem	Direct Connect aluminum
Saddle	Selle Royal w/chromoly rails
Seatpost	Kalloy SP-363, 30.8 mm diameter

Wheels & tires

Hubs	Front: Shimano Deore LX suspension, Rear: Shimano Deore LX
Rims	Mavic 220, 32-hole
Spokes	DT Competition stainless steel, 1.8mm double butted
Spoke nipples	Brass nipples
Front tire	Front: 26 x 1.95" Tioga Edge kevlar, Rear: 26 x 1.95" Tioga Psycho TT kevlar
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	579.1 mm
Head-tube angle	71°
Seat-tube angle	74°
Chainstay / rear center	370.8 mm
Wheelbase	1010.9 mm
Fork offset / rake	40.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on August 25, 2026.