Bicycle Archive · Specification report

1997 Giant MCM 990

Velopedia Archive ID 69896

Overview

Model year	1997
Brand	Giant
Model	MCM 990
Bicycle type	Mountain bike, front & rear suspension
Archive ID	69896
Original MSRP	$3,249.95
Colors	Natural carbon/yellow
Sizes	Medium
Weight	29.25 lb

Frameset

Frame construction	Bonded mainframe w/TIG-welded swingarm
Frame material	Carbon fiber composite/CU92 swingarm/7005 aluminum Rocker
Fork	Rock Shox Judy SL
Fork material	Magnesium, triple-clamp crown
Rear shock	Rock Shox Super Deluxe, 4.0" travel

Drivetrain

Component group	Shimano Deore XT
Shifters	Shimano Deore XT RapidFire SL
Front derailleur	Shimano Deore XT top-swing, top-pull/braze-on
Rear derailleur	Shimano Deore XT SGS
Crankset	Shimano Deore XT, 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	Shimano Deore XT V-Brake brakes, Shimano Deore XT levers

Cockpit & contact points

Headset	1 1/8" threadless Dia-Compe Kontak Aheadset AL-2
Handlebar	Aluminum
Handlebar extensions	Not included
Stem	Direct Connect aluminum
Saddle	Selle Royal Eclipse, carbon
Seatpost	Tahoma DP 310, 30.8 mm diameter

Wheels & tires

Hubs	Front: Shimano Deore XT suspension, Rear: Shimano Deore XT
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	594.4 mm
Head-tube angle	70.9°
Seat-tube angle	73.4°
Chainstay / rear center	429.3 mm
Wheelbase	1087.1 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.