Bicycle Archive · Specification report

1998 Schwinn Sierra SL

Velopedia Archive ID 79977

Overview

Model year	1998
Brand	Schwinn
Model	Sierra SL
Bicycle type	Mountain bike, front suspension
Archive ID	79977
Original MSRP	$739.95
Colors	Metallic blue
Sizes	Large, medium, small

Frameset

Frame construction	TIG-welded
Frame material	Aluminum
Fork	Rock Shox Indy S
Fork material	Aluminum/magnesium, triple-clamp crown
Rear shock	N/A

Drivetrain

Component group	Mountain Mix
Shifters	Shimano Nexave
Front derailleur	Shimano STX top-swing
Rear derailleur	Shimano Nexave
Crankset	Shimano STX, 22/32/42 teeth
Rear cogs	8-speed, 11 - 34 teeth
Chain	1/2 x 3/32"
Pedals	Steel cage, resin body w/clips & straps

Brakes

Brakes	Shimano AceraX V-Brake brakes, Shimano Nexave levers

Cockpit & contact points

Headset	1 1/8" threadless Tioga TG
Handlebar	Aluminum, 1" rise
Handlebar extensions	Not included
Stem	Tahoma Sonne IV
Saddle	Spring type
Seatpost	Suspension

Wheels & tires

Hubs	Front: Formula aluminum, Rear: Shimano STX-RC
Rims	Araya TM-820, 32-hole
Spokes	Stainless steel, 2.0mm straight gauge
Front tire	26 x 1.95" multi-terrain
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	576.6 mm
Head-tube angle	71°
Seat-tube angle	73°
Chainstay / rear center	424.2 mm
Wheelbase	1051.6 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 October 2, 2026.