Bicycle Archive · Specification report

1999 Specialized Rockhopper A1 FS

Velopedia Archive ID 89968

Overview

Model year	1999
Brand	Specialized
Model	Rockhopper A1 FS
Bicycle type	Mountain bike, front suspension
Archive ID	89968
Original MSRP	$699.99
Colors	Black, Burnt Orange
Sizes	13", 15", 17", 19", 21", 23"

Frameset

Frame construction	TIG-welded
Frame material	Specialized A1 aluminum
Fork	Answer Manitou Spyder, 2.75" travel
Fork material	Aluminum/magnesium, triple-clamp crown
Rear shock	N/A

Drivetrain

Component group	Mountain Mix
Shifters	Shimano Deore LX RapidFire SL
Front derailleur	Shimano STX-RC top-swing, bottom-pull/clamp-on 35.0mm
Rear derailleur	Shimano Deore LX SGS
Crankset	Specialized ForeArm Sport, 22/32/42 teeth
Bottom bracket	Specialized Comp, 110mm spindle
BB shell width	73mm English
Rear cogs	9-speed, 11 - 32 teeth
Chain	Shimano CN-HG72, 1/2 x 3/32"
Pedals	Aluminum cage w/clips & straps

Brakes

Brakes	Dia-Compe 733 Direct Pull w/linear spring brakes, Dia-Compe DP-7N levers

Cockpit & contact points

Headset	1 1/8" threadless Specialized Headfirst Sport
Handlebar	Specialized alloy
Handlebar extensions	N/A
Stem	Specialized A-1
Saddle	Specialized Prolong
Seatpost	Specialized micro-adjust, 30.9mm diameter

Wheels & tires

Hubs	Front: Specialized alloy, Rear: Specialized STOUT Comp
Rims	Front: Ritchey Rock SCX, Rear: Ritchey Rock OCR, 32-hole
Spokes	DT stainless steel, 1.8mm straight gauge
Spoke nipples	Brass nipples
Front tire	Front: 26 x 1.95" Specialized Dirt Control Sport, Rear: 26 x 1.95" Specialized Dirt Master Sport
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	549 mm
Head-tube angle	71°
Seat-tube angle	73°
Chainstay / rear center	430 mm
Wheelbase	1048 mm
Fork offset / rake	38 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 4, 2026.