Velopedia Bicycle Archive

1996 Specialized Rockhopper A1

Original specifications: Shimano Alivio drivetrain · 26" wheels · legacy reference geometry.

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At a glance

Model year
1996
Category
Mountain
Original MSRP
$549.00
Sizes
13.5", 15.5", 17", 18", 19", 20.5"
Colors
Gray, Red
Geometry
Legacy reference
In this record
26 specifications · original MSRP · geometry
Archive ID
54074
Model history 1 other year
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Manufacturer catalog

Published sizes and colors

6 sizes · 2 colors

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

Published sizes

13.5"15.5"17"18"19"20.5"

Published colors

GrayRed

Frameset

Frame ConstructionWelded aluminum
Frame MaterialSpecialized Premium A1 aluminum
ForkSpecialized Direct Drive
Fork MaterialChromoly, butted, unicrown crown

Drivetrain

Component GroupShimano Alivio
ShiftersGrip Shift SRT-300i
Front DerailleurShimano Alivio top-swing, bottom-pull
Rear DerailleurShimano STX
CranksetSpecialized Son of Strongarm, 20/32/42 teeth
Bottom BracketShimano BB-LP26, 107 mm spindle
BB Shell Width73mm English
Rear Cogs7-speed, 11 - 28 teeth
ChainShimano CN-IG50, 1/2 x 3/32"
PedalsHTI steel/resin w/clips & straps

Brakes

BrakesShimano Altus brakes, Dia-Compe PC-3 levers

Cockpit & Contact Points

Headset1 1/8" sealed mechanism
HandlebarAlloy
Handlebar ExtensionsNot included
StemChromoly
SaddleSpecialized Comfort Sport
SeatpostAlloy micro-adjust, 30.9 mm diameter

Wheels & Tires

RimsAraya GP-710, 32-hole
SpokesWheelsmith stainless steel, 2.0mm straight gauge
Spoke NipplesBrass nipples
Front TireFront: 26 x 1.95" Specialized Ground Control II, Rear: 26 x 1.95" Specialized Ground Master
Wheel Size26" wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

This historical geometry describes the model, but the original source does not identify its frame size. Use it as a period reference, not a size-specific fit comparison.

MeasurementLegacy reference
Top tube564 mm
Head-tube angle71°
Seat-tube angle73°
Chainstay / rear center430 mm
Wheelbase1064 mm
Fork offset / rake42 mm

The preserved source contains one model-level geometry set without an identified frame size.

Published drivetrain ratios

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build42/32/20T · 11–28T · 7-speed
Lowest0.71:1 Highest3.82:1 Total range535%

The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
Shimano CN-IG50, 1/2 x 3/32" Exact archived model
Bottom bracketExact archived part
Shimano BB-LP26, 107 mm spindle Exact archived model
SaddleQualified part search
Specialized Comfort Sport Named archived component — verify exact version
More qualified parts (4)
CranksetQualified part search
Specialized Son of Strongarm, 20/32/42 teeth Named archived component — verify exact version
Front derailleurMatching configuration
Shimano Alivio top-swing, bottom-pull Interpreted as Shimano Alivio · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano STX Interpreted as Shimano STX · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
30.9 mm seatpost Published diameter — verify length and setback

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

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Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 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: 1996 Specialized Rockhopper A1 · Mountain bike, non-suspension · Published sizes: 13.5", 15.5", 17", 18", 19", 20.5"

Archived: Frame: Welded aluminum · Fork: Specialized Direct Drive · Chromoly, butted, unicrown crown

Archived: Group: Shimano Alivio · Shifters: Grip Shift SRT-300i · Front derailleur: Shimano Alivio top-swing, bottom-pull · Rear derailleur: Shimano STX · Crankset: Specialized Son of Strongarm, 20/32/42 teeth · Bottom bracket: Shimano BB-LP26, 107 mm spindle · Rear cogs: 7-speed, 11 - 28 teeth · Chain: Shimano CN-IG50, 1/2 x 3/32"

Archived: Brakes: Shimano Altus brakes, Dia-Compe PC-3 levers

Archived: Wheel size: 26" wheels · Rims: Araya GP-710, 32-hole · Front tire: Front: 26 x 1.95" Specialized Ground Control II, Rear: 26 x 1.95" Specialized Ground Master

Controls and contact points

Archived: Headset: 1 1/8" sealed mechanism · Handlebar: Alloy · Stem: Chromoly · Seatpost: Alloy micro-adjust, 30.9 mm diameter · Saddle: Specialized Comfort Sport · Pedals: HTI steel/resin w/clips & straps

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

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