VelopediaBicycle Archive ยท Specification report

2009 BH G4/ Dura-Ace Di2

Velopedia Archive ID 18406

Overview

Model year2009
BrandBH
ModelG4/ Dura-Ace Di2
Bicycle typeRoad race & triathlon
Archive ID18406
Original MSRP$9,400.00
ColorsRed
Sizes52cm, 54cm, 55.5cm, 57cm, 58.5cm

Frameset

Frame constructionBonded/monocoque
Frame materialHigh Modulus carbon fiber
Fork materialCarbon fiber/carbon fiber steerer, aero crown
Rear shockN/A

Drivetrain

Component groupShimano Dura-Ace Di2 Electric
ShiftersShimano Dura-Ace Di2
Front derailleurShimano Dura-Ace Di2
Rear derailleurShimano Dura-Ace Di2
CranksetShimano Dura-Ace, 34/50 teeth
Bottom bracketShimano Hollowtech II
CassetteShimano Dura-Ace
Rear cogs10-speed, 11 - 25 teeth

Brakes

BrakesShimano Dura-Ace Dual Pivot brakes, Shimano Dura-Ace Di2 levers

Cockpit & contact points

Headset1 1/8" FSA Orbit CE Plus
HandlebarFSA SLK Carbon compact
Handlebar extensionsNot included
StemFSA OS-99
SaddleSelle San Marco Aspide CS Ti
SeatpostIntegrated

Wheels & tires

HubsShimano Dura-Ace CL
RimsShimano Dura-Ace CL
Front tire700 x 23c Vittoria Diamante Pro Light
Wheel size700c wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 9, 2026.