VelopediaBicycle Archive · Specification report

2004 Jamis Explorer 4.0

Velopedia Archive ID 92442

Overview

Model year2004
BrandJamis
ModelExplorer 4.0
Bicycle typeComfort/commuter
Archive ID92442
Original MSRP$569.95
ColorsBrushed, Silver/Red
Sizes13.5", 15.5", 18", 21", womens 14.5", womens 17.5"
Weight31.75 lb

Frameset

Frame constructionTIG-welded
Frame material6061 T6 aluminum
ForkRock Shox Metro GPS, 50mm travel
Fork materialAluminum/magnesium, single crown
Rear shockN/A

Drivetrain

Component groupComfort Mix
ShiftersSRAM Dual Drive
Front derailleurSRAM 3.0, bottom-pull/clamp-on 31.8mm
Rear derailleurSRAM Dual Drive
CranksetSRAM Dual Drive, 22/32/42 teeth
Bottom bracketSealed, 111mm spindle
BB shell width68mm English
Rear cogs8-speed, 11 - 30 teeth
ChainShimano CN-IG31, 1/2 x 3/32"
PedalsVictor VP aluminum

Brakes

BrakesTektro linear-pull brakes, Tektro Tenera levers

Cockpit & contact points

Headset1 1/8" threadless steel
HandlebarSteel, 1" rise
Handlebar extensionsNot included
StemAluminum, adjustable
SaddleJamis Comfort
SeatpostAluminum, suspension, 27.2mm diameter

Wheels & tires

HubsAluminum, Q/R
RimsWeinmann CN-520, 36-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke nipplesBrass nipples
Front tire26 x 1.95" Kenda Komfort
Wheel size26" wheels

Geometry · Legacy reference

Top tube575 mm
Head-tube angle71°
Seat-tube angle73.5°
Chainstay / rear center445 mm
Wheelbase1059 mm
Fork offset / rake45 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 2, 2026.