Velopedia Bicycle Archive

1997 Giant ATX 860

Mountain bike, front suspension bicycle from the Velopedia specification archive.

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Original MSRP
$919.95
Sizes
14.5", 17.5", 19.5", 21.5", 23.5"
Colors
Ball burnished, Ball Burnished/Green Ano Fade
Weight
25.7 lb
Geometry
Legacy reference · Ride analysis
Archive ID
65912

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Velopedia analysis

What the specifications mean

Derived from the archived manufacturer recordHow Velopedia reads these specifications →

The fork provides the documented suspension, so fork setup and rear-tire pressure are the main adjustments for balancing the two ends of the bike. The 255% cassette range describes the available gearing more clearly than the component-group name alone. With rim brakes, the wheel’s braking surface is part of the system, so rim wear matters alongside pads and cables.

Suspension setup Front only Fork settings affect the front while rear-wheel behavior remains dependent on tire and wheel setup.
Gearing 255% cassette range Calculated from the published 11–28-tooth sprocket span.
Brake service Rim braking Pad compound, cable condition and wheel braking-surface wear belong in the inspection.
Frame material Aluminum / alloy Dents and cracking around welds at the head tube, bottom bracket shell and dropouts deserve attention.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
  • BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
  • SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing play.Evaluate the suspension →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 8-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 21 checks based on 6 archived component groups Open checklistClose checklist
0 of 21 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 1997 Giant ATX 860 · Mountain bike, front suspension · Published sizes: 14.5", 17.5", 19.5", 21.5", 23.5"

Archived: Frame: TIG-welded · Fork: Rock Shox Indy C · Magnesium, triple-clamp crown

Archived: Fork: Rock Shox Indy C

Archived: Group: Grip Shift/Shimano STX-RC · Shifters: Grip Shift ESP 500 · Front derailleur: Shimano STX-RC top-swing, top-pull/clamp-on 35.0 mm · Rear derailleur: Grip Shift ESP 5.0 · Crankset: Shimano STX-RC, 22/34/42 teeth · Bottom bracket: Shimano BB-LP26, 110.5 mm spindle · Rear cogs: 8-speed, 11 - 28 teeth · Chain: Sachs SC-20, 1/2 x 3/32"

Archived: Brakes: Shimano Deore LX V-Brake brakes, Grip Shift SBS6 carbon levers

Archived: Wheel size: 26" wheels · Rims: Rigida Norma, 32-hole · Hubs: Front: Shimano STX-RC suspension, Rear: Shimano STX-RC · Front tire: Front: 26 x 1.95" Maxxis Helter, Rear: 26 x 1.95" Maxxis Skelter

Controls and contact points

Archived: Headset: 1 1/8" threadless Dia-Compe Aheadset TA-3 · Handlebar: Aluminum · Stem: Direct Connect aluminum · Seatpost: Kalloy SP-243, 30.8 mm diameter · Saddle: Selle San Marco Tecno Dynamica · Pedals: Giant EXT-Tec aluminum w/clips & straps

Before and during the test ride

Follow the full used-bike inspection order →

Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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Manufacturer catalog

Published sizes and colors

5 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

14.5"17.5"19.5"21.5"23.5"

Published colors

Ball burnishedBall Burnished/Green Ano Fade

Frameset

Frame ConstructionTIG-welded
Frame MaterialGiant CU92 aluminum, butted
ForkRock Shox Indy C
Fork MaterialMagnesium, triple-clamp crown
Rear ShockN/A

Drivetrain

Component GroupGrip Shift/Shimano STX-RC
ShiftersGrip Shift ESP 500
Front DerailleurShimano STX-RC top-swing, top-pull/clamp-on 35.0 mm
Rear DerailleurGrip Shift ESP 5.0
CranksetShimano STX-RC, 22/34/42 teeth
Bottom BracketShimano BB-LP26, 110.5 mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 11 - 28 teeth
ChainSachs SC-20, 1/2 x 3/32"
PedalsGiant EXT-Tec aluminum w/clips & straps

Brakes

BrakesShimano Deore LX V-Brake brakes, Grip Shift SBS6 carbon levers

Cockpit & Contact Points

Headset1 1/8" threadless Dia-Compe Aheadset TA-3
HandlebarAluminum
Handlebar ExtensionsNot included
StemDirect Connect aluminum
SaddleSelle San Marco Tecno Dynamica
SeatpostKalloy SP-243, 30.8 mm diameter

Wheels & Tires

HubsFront: Shimano STX-RC suspension, Rear: Shimano STX-RC
RimsRigida Norma, 32-hole
SpokesDT stainless steel, 2.0mm straight gauge
Spoke NipplesBrass nipples
Front TireFront: 26 x 1.95" Maxxis Helter, Rear: 26 x 1.95" Maxxis Skelter
Wheel Size26" wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

Historical model-level geometry recovered from Velopedia’s original archive database. The source does not identify which listed frame size this reference describes, so fit interpretation is intentionally limited and no size-normalized Archive Context is generated.

MeasurementLegacy reference
Top tube556.3 mm
Head-tube angle71°
Seat-tube angle73°
Chainstay / rear center425.4 mm
Wheelbase1023.6 mm
Fork offset / rake40.6 mm

Geometry source: Historical archive database — model-level reference geometry. The historical source provides one model-level geometry set and does not identify the corresponding frame size.

Geometry interpretation

What this geometry means

Legacy reference geometry

Fit reference

The historical source lists a 556.3 mm top-tube length, but it does not identify which frame size this model-level reference describes or whether the historical field was measured horizontally. Treat it as an archival frame reference rather than a size-specific fit recommendation. Its 73° seat-tube angle describes the reference frame’s seat-line orientation. Actual seated position still depends on frame size, saddle height and fore-aft adjustment.

Handling tendencies

The 71° head angle points to relatively quick-steering by current mountain-bike conventions steering geometry. Wheelbase is listed at 1023.6 mm, but because the historical source does not identify frame size, it is retained as a model reference rather than used for a size-normalized handling conclusion. Fork offset is listed at 40.6 mm. Offset works with head angle and wheel size to determine trail, so it is useful steering evidence even though the archive does not provide enough information here to calculate trail reliably.

Period context

At 71°, the head angle sits close to the middle of the group among mountain geometries represented in Velopedia for this period. Its 73° seat angle is close to the middle of the group among the same-period mountain references.

Compared with 1565 distinct legacy mountain geometries from model years 1995–1999. Only angular measurements are used because the historical reference frame size is unidentified.

This is historical model-level reference geometry, not a known frame-size geometry table or a ride test. Frame size, rider proportions, cockpit setup, tires, suspension and components can materially change fit and handling.

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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