1991 Mongoose

Expert Comp

RIDER STYLE
Race
1991 Mongoose expert BMX Catalogue

his year's Expert Comp is radically improved to exceed the demands of today's aspiring BMX hero. Our most popular Mongoose is built around our exclusive Monostay chasis with a 4130 chromoly mainframe and chromoly forks. The 1991 Mongoose Expert Comp features Mongoose's revolutionary new padded Kraton stem--a boon to anyone who's ever bashed their knee on a regular gooseneck. Stopping the Expert Comp is easy, thanks to its Dia-Compe Bulldog brakes and Tech-3 alloy lever. Other race-ready features include a set of Araya MP-20 alloy rims with Mongoose skinwall tires, new Mongoose composite pedals, a quick-change alloy chainring, and a supertough Velo saddle.

Room Icon
ORIGINAL SPECS
For this model
Frame
Fork
Handlebar
Rims
Hubs
Pedals
Front Brakes
Rear Brakes
Levers
Seat
Grips
Stem
Tyres
Cranks
4130 CR-MO
100% CR-MO
Expert 2pc
Araya MP22 36H
Alloy 10mm
Resin
None
DC Bulldog
Tech 3 Alloy
Velo BMX
Mongoose Kraton
Mongoose Kraton
Mongoose Fat/Skin
1pc 175 43T 2pc St

Headset Size

1"

Seatpost Size

26.0mm

Top Tube Size

unknown

Original Colours

chrome black
Serial Number Icon
Serial Number
Format

HFAX000000 HFBY000000
Made in Taiwan.
Third digit in the serial indicates year of production. A = 1991 or B = 1992. The fourth digit in the example above indicates production Month. X = E to L - May to Dec. Y = A to D - Jan to April. For all serial number sequence explanations, see the mid-school serial guide page.

Mid School Serial Guide

Bikes made in Taiwan usually had an 6-9 month production and shipping timeline before they were sold in bike shops around the world. In May of any year, factories would usually switch production to making models for the following year.