Bicycle Archive · Specification report

1998 Mongoose MacFearsome

Velopedia Archive ID 79211

Overview

Model year	1998
Brand	Mongoose
Model	MacFearsome
Bicycle type	BMX
Archive ID	79211
Original MSRP	$1,300.00
Colors	Polished
Sizes	Boys

Frameset

Frame construction	TIG-welded
Frame material	7005 aluminum
Fork	Mongoose Pro
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	Profile Racing, 44 teeth
Bottom bracket	Profile sealed bearing
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC, 1/2 x 3/32"
Pedals	Shimano PD-M636 SPD

Brakes

Brakes	Shimano DX BMX V-brake rear brakes, Shimano DX BMX levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset SX-1
Handlebar	Mongoose Pro chromoly
Handlebar extensions	N/A
Stem	Profile
Saddle	Mongoose Pro w/kevlar
Seatpost	Shimano XTR, 27.2mm diameter

Wheels & tires

Hubs	Front: Crupi, Rear: Shimano DX
Rims	Araya Super 7X, 36-hole
Spokes	DT stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	Front: 20 x 2.125" Mongoose Blur, Rear: 20 x 1.75" Mongoose Blur
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	556.3 mm
Head-tube angle	73°
Seat-tube angle	71°
Chainstay / rear center	388.6 mm
Wheelbase	965.2 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 27, 2026.