Bicycle Archive · Specification report

1998 Mongoose FX-1

Velopedia Archive ID 72114

Overview

Model year	1998
Brand	Mongoose
Model	FX-1
Bicycle type	Freestyle/jumping
Archive ID	72114
Original MSRP	$296.00
Colors	Clear
Sizes	Boys

Frameset

Frame construction	TIG-welded
Frame material	Chromoly/hi-tensile steel
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 1-piece, 44 teeth
Bottom bracket	One piece
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC, 1/2 x 3/32"
Pedals	Mongoose aluminum

Brakes

Brakes	Dia-Compe 884 front/Tektro U-brake rear brakes, Tektro levers

Cockpit & contact points

Headset	1 1/8" steel
Handlebar	Mongoose chromoly
Handlebar extensions	N/A
Stem	Mongoose Pro
Saddle	Mongoose
Seatpost	Mongoose micro-adjust, 26.0mm diameter

Wheels & tires

Hubs	Mongoose OS
Rims	Mongoose aluminum, 36-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.95" Mongoose Blur
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	533.4 mm
Head-tube angle	73.3°
Seat-tube angle	71°
Chainstay / rear center	391.2 mm
Wheelbase	967.7 mm
Fork offset / rake	25.4 mm

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