Bicycle Archive · Specification report

2003 Norco Chaos

Velopedia Archive ID 39057

Overview

Model year	2003
Brand	Norco
Model	Chaos
Bicycle type	Mountain bike, front suspension
Archive ID	39057
Colors	Green
Sizes	15", 17", 18.5"

Frameset

Frame construction	TIG-welded
Frame material	7005 aluminum
Fork	RST Gila
Fork material	Aluminum, single crown
Rear shock	N/A

Drivetrain

Component group	Mountain Mix
Shifters	Shimano Alivio RapidFire Plus
Front derailleur	Shimano Acera M330
Rear derailleur	Shimano Alivio
Crankset	SR Suntour aluminum, 24/34/42 teeth
Bottom bracket	VP cartridge
Rear cogs	8-speed, 11 - 32 teeth
Chain	KMC Z72, 1/2 x 3/32"
Pedals	Wellgo LU-A18 platform w/ replaceable pins

Brakes

Brakes	Hayes HMX-1 Mechanical Disc front/Tektro linear-pull rear brakes, Shimano Alivio levers

Cockpit & contact points

Headset	1 1/8" FSA TH-855
Handlebar	Aluminum, rise
Handlebar extensions	Not included
Stem	Aluminum Ahead type
Saddle	Velo VL-1044
Seatpost	Aluminum micro-adjust

Wheels & tires

Hubs	Aluminum disc Q/R
Rims	Alex AP-18, 36-hole
Spokes	Chung Nan stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 2.10" Kenda K-887
Wheel size	26" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 3, 2026.