Bicycle Archive · Specification report

1999 Mongoose Supergoose Jr.

Velopedia Archive ID 86718

Overview

Model year	1999
Brand	Mongoose
Model	Supergoose Jr.
Bicycle type	BMX
Archive ID	86718
Original MSRP	$329.99
Colors	Yellow Metallic
Sizes	Junior

Frameset

Frame construction	TIG-welded
Frame material	7005 T-6 aluminum alloy
Fork	Mongoose
Fork material	Chromoly, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Mongoose 3-piece, 42 teeth
Rear cogs	1-speed, 16 teeth
Chain	KMC, 1/2 x 3/32"
Pedals	Mongoose resin

Brakes

Brakes	Dia-Compe caliper rear brakes, Tektro rear levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset
Handlebar	Mongoose Mini BMX
Handlebar extensions	Not included
Stem	Mongoose alloy
Saddle	Mongoose Mini w/post
Seatpost	N/A

Wheels & tires

Hubs	Mongoose OS
Rims	Mongoose aluminum, 36-hole
Spokes	UCP, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1 3/8" Comp III style
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.