VelopediaBicycle Archive · Specification report

2004 Koga Miyata Road Winner

Velopedia Archive ID 31971

Overview

Model year2004
BrandKoga Miyata
ModelRoad Winner
Bicycle typeRoad race & triathlon
Archive ID31971
ColorsBlack Matte
Sizes50cm, 54cm, 56cm, 58cm, 60cm, 63cm, 66cm
Weight19.8 lb

Frameset

Frame constructionTIG-welded
Frame material7005 aluminum
ForkCarbon Wing Integrated
Fork materialCarbon fiber, aero crown
Rear shockN/A

Drivetrain

Component groupShimano 105 Triple
ShiftersShimano 105 STI Dual Control
Front derailleurShimano 105 Triple
Rear derailleurShimano 105 SS
CranksetShimano 105, 30/42/53 teeth
Bottom bracketShimano BB-5500, 118mm spindle
BB shell width68mm English
Rear cogs9-speed, 12 - 25 teeth
ChainShimano CN-HG73, 1/2 x 3/32"
PedalsKoga VP-R70

Brakes

BrakesShimano 105 Dual Pivot brakes, Shimano 105 STI Dual Control levers

Cockpit & contact points

Headset1 1/8" integrated Cane Creek ISDD
HandlebarITM Super Italian Pro 330 Over
Handlebar extensionsN/A
StemITM Forged Lite Luxe Over
SaddleSelle San Marco Base
SeatpostAluminum micro-adjust

Wheels & tires

HubsShimano 105
RimsMavic CXP 22, 36-hole
SpokesSapim stainless steel, straight gauge
Spoke nipplesBrass nipples
Front tire700 x 23c Continental Grand Prix
Wheel size700c wheels

Geometry · Legacy reference

Top tube560 mm
Head-tube angle72.5°
Seat-tube angle73.5°
Chainstay / rear center408 mm
Wheelbase1004 mm
Fork offset / rake43 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 30, 2026.