Bicycle Archive · Specification report

2003 Sun Bicycles Comfort 21

Velopedia Archive ID 91792

Overview

Model year	2003
Brand	Sun Bicycles
Model	Comfort 21
Bicycle type	Cruiser
Archive ID	91792
Original MSRP	$270.00
Colors	Blue/Silver, Red/Silver
Sizes	19", 21", womens 15", womens 17"
Weight	32 lb

Frameset

Frame construction	TIG-welded
Frame material	7005 aluminum
Fork material	Hi-tensile steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	Comfort Mix
Shifters	Shimano Tourney RevoShift
Front derailleur	Shimano Tourney TY-32, bottom-pull/clamp-on 31.8mm
Rear derailleur	Shimano Altus
Crankset	Shimano Tourney, 28/38/48 teeth
Bottom bracket	Victor VP-B32
Rear cogs	7-speed, 14 - 34 teeth
Chain	KMC Z410, 1/2 x 3/32"
Pedals	Victor VP resin

Brakes

Brakes	Aluminum linear-pull brakes, aluminum linear-pull levers

Cockpit & contact points

Headset	1" threaded steel
Handlebar	Aluminum, 2.75" rise
Handlebar extensions	N/A
Stem	Aluminum, adjustable
Saddle	Comfort
Seatpost	Aluminum, suspension, 25.4mm diameter

Wheels & tires

Hubs	Front: aluminum, Q/R, Rear: aluminum, nutted
Rims	Aluminum, 36-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 1.95" Kenda K-841
Wheel size	26" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 26, 2026.