Bicycle Archive · Specification report

1997 Electra Rocket STX 21

Velopedia Archive ID 67281

Overview

Model year	1997
Brand	Electra
Model	Rocket STX 21
Bicycle type	Cruiser
Archive ID	67281
Original MSRP	$849.95
Colors	Polished
Sizes	18.5"

Frameset

Frame construction	TIG-welded
Frame material	7000 aluminum
Fork	Electra
Fork material	Aluminum, unicrown crown
Rear shock	N/A

Drivetrain

Component group	Shimano STX
Shifters	Grip Shift SRT-400i
Front derailleur	Shimano STX top-swing, bottom-pull/clamp-on 31.8 mm
Rear derailleur	Shimano STX
Crankset	Shimano STX, 22/32/42 teeth
Bottom bracket	Shimano BB-LP26
BB shell width	68mm English
Rear cogs	7-speed, 11 - 28 teeth
Chain	1/2 x 3/32"
Pedals	Wellgo LU-936

Brakes

Brakes	Shimano STX M-System brakes, Tektro RBP-365A levers

Cockpit & contact points

Headset	1 1/8" threadless FSA Orbit UF
Handlebar	Aluminum
Handlebar extensions	N/A
Stem	Aluminum
Saddle	Electra
Seatpost	Kalloy aluminum, 27.2 mm diameter

Wheels & tires

Hubs	Shimano STX
Rims	Mavic 238, 36-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	Front: 26 x 2.10" Panaracer Dart 2, Rear: 26 x 2.10" Panaracer Smoke 2
Wheel size	26" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 24, 2026.