VelopediaBicycle Archive ยท Specification report

2003 Sun Bicycles Marathon

Velopedia Archive ID 38642

Overview

Model year2003
BrandSun Bicycles
ModelMarathon
Bicycle typeHybrid
Archive ID38642
Original MSRP$370.00
ColorsBall Burnished, Blue/Silver
Sizes21", womens 17"
Weight30 lb

Frameset

Frame constructionTIG-welded
Frame material6061 T6 aluminum
Fork materialHi-tensile steel, unicrown crown
Rear shockN/A

Drivetrain

Component groupHybrid Mix
ShiftersShimano Revo
Front derailleurShimano Tourney TY-32, bottom-pull/clamp-on 31.8mm
Rear derailleurShimano RM-340
Crankset3-piece aluminum, 28/38/48 teeth
Bottom bracketSteel retainer style
Rear cogs7-speed, 14 - 34 teeth
ChainKMC Z410, 1/2 x 3/32"

Brakes

BrakesTektro 832A linear pull brakes, Tektro 385A levers

Cockpit & contact points

Headset1" threaded steel
HandlebarSteel, rise
Handlebar extensionsNot included
StemAluminum
SaddleVelo VL-6013
SeatpostAluminum, suspension, 27.2mm diameter

Wheels & tires

HubsFront: aluminum, Q/R, Rear: aluminum
RimsAluminum, 36-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke nipplesBrass nipples
Front tire700 x 40c Kenda K-841
Wheel size700c wheels

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