Bicycle Archive · Specification report

1999 Mongoose SGX

Velopedia Archive ID 87839

Overview

Model year	1999
Brand	Mongoose
Model	SGX
Bicycle type	BMX
Archive ID	87839
Original MSRP	$379.99
Colors	Wired Natural, Wired Ocean Blue

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 2-piece, 43 teeth
Rear cogs	1-speed, 16 teeth
Chain	KMC, 1/2 x 3/32"
Pedals	Mongoose aluminum

Brakes

Brakes	Tektro linear-pull rear brakes, Tektro rear levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset
Handlebar	Mongoose BMX
Handlebar extensions	Not included
Stem	Mongoose alloy
Saddle	Mongoose BMX
Seatpost	Mongoose micro-adjust

Wheels & tires

Hubs	Mongoose OS
Rims	Weinmann Zac 19, 36-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	Mongoose Blur.2

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 28, 2026.