Velopedia Bicycle Archive

2009 BH G4/ Dura-Ace

Original specifications: Shimano Dura-Ace drivetrain · 700c wheels.

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At a glance

Archive #18407

Model year: 2009
Category: Road
Original MSRP: $7,150.00
Sizes: 52cm, 54cm, 55.5cm, 57cm, 58.5cm
Colors: Red
In this record: 22 specifications · original MSRP

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Identification clues

2009 archived details

Published colors: Red
Frame: High Modulus carbon fiber
Original equipment: Shimano Dura-Ace

Clues, not proof of model year. Colors vary and components may have been replaced.

Original buildHigh Modulus carbon fiber · Shimano Dura-Ace · 700c wheels

Manufacturer catalog

Published sizes and colors

5 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

52cm54cm55.5cm57cm58.5cm

Published colors

Red

Frameset

Frame Construction	Bonded/monocoque
Frame Material	High Modulus carbon fiber
Fork Material	Carbon fiber/carbon fiber steerer, aero crown

Drivetrain

Component Group	Shimano Dura-Ace
Shifters	Shimano Dura-Ace STI
Front Derailleur	Shimano Dura-Ace
Rear Derailleur	Shimano Dura-Ace
Crankset	Shimano Dura-Ace, 34/50 teeth
Bottom Bracket	Shimano Hollowtech II
Cassette	Shimano Dura-Ace
Rear Cogs	10-speed, 11 - 25 teeth

Brakes

Brakes	Shimano Dura-Ace Dual Pivot brakes, Shimano Dura-Ace STI levers

Cockpit & Contact Points

Headset	1 1/8" FSA Orbit CE Plus
Handlebar	FSA SLK Carbon compact
Handlebar Extensions	Not included
Stem	FSA OS-99
Saddle	Selle San Marco Aspide CS Ti
Seatpost	Integrated

Wheels & Tires

Hubs	Shimano Dura-Ace CL
Rims	Shimano Dura-Ace CL
Front Tire	700 x 23c Vittoria Diamante Pro Light
Wheel Size	700c wheels

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

Pedal cadence

RPM

Speed units

RPM = pedal turns per minute.

All published sizes50/34T · 11–25T · 10-speed

Lowest1.36:1 Highest4.55:1 Total range334%

Estimated speed At 90 RPM Lowest gear9.6 mph Highest gear32.0 mph

Uses front tire 700C×23; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Gears Drivetrain

Front teeth Smallest rear teeth Largest rear teeth

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Rear tire marking

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

Rim diameter (BSD, mm) Tire width (mm)

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Cadence (RPM) Speed units

Gear, dimension and cadence changes update results automatically.

Gearing comparison
Measure	Original	Your setup
Lowest ratio	—	—
Highest ratio	—	—
Total range	—	—
Lowest-gear speed	—	—
Highest-gear speed	—	—

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications

Front tire · Original

700 x 23c Vittoria Diamante Pro Light

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Retailer offers

Vittoria Rubino Pro G2.0 Clincher Tire Black, 700x23

700x23c

Replacement option

Competitive Cyclist ↗$41.10

Bottom bracket · Original

Shimano Hollowtech II

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Crankset · Original

Shimano Dura-Ace

34/50 teeth

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More parts (8)Fewer parts

Front derailleur · Original

Shimano Dura-Ace Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.

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Rear derailleur · Original

Shimano Dura-Ace Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.

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Shifters · Original

Shimano Dura-Ace STI Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.

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Handlebar · Original

FSA SLK Carbon compact

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Stem · Original

FSA OS-99

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Headset · Original

1 1/8" FSA Orbit CE Plus

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Rims · Original

Shimano Dura-Ace CL

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Hubs · Original

Shimano Dura-Ace CL

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Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire: 700 x 23c Vittoria Diamante Pro Light
Drivetrain: 10-speed
Bottom bracket / shell: Shimano Hollowtech II

Equipment inspection checks 9 checks based on 5 archived component groups Open equipment checksClose equipment checks

Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

Frame and fork

Inspect the frame and fork →

Archived: Frame: Bonded/monocoque · Fork: · Carbon fiber/carbon fiber steerer, aero crown

Inspect the frame in bright light, especially the head tube, bottom-bracket area, chainstays and clamped surfaces. Look for cracks, ripples, crushed sections or signs of impact.

Drivetrain

Check drivetrain wear →

Archived: Group: Shimano Dura-Ace · Shifters: Shimano Dura-Ace STI · Front derailleur: Shimano Dura-Ace · Rear derailleur: Shimano Dura-Ace · Crankset: Shimano Dura-Ace, 34/50 teeth · Bottom bracket: Shimano Hollowtech II · Cassette: Shimano Dura-Ace · Rear cogs: 10-speed, 11 - 25 teeth

Shift through every available gear under light load. Hesitation, skipping or inconsistent indexing can reflect wear, damage, poor adjustment or mismatched replacement parts.
Measure chain wear with a compatible gauge and inspect chainring, cassette or freewheel teeth. A new chain does not rule out wear in the remaining drivetrain.
Turn the cranks slowly, feel for rough bearings and check for side-to-side play. Inspect crank arms, chainring bolts and pedal threads for looseness or damage.

Brakes

Inspect the brakes →

Archived: Brakes: Shimano Dura-Ace Dual Pivot brakes, Shimano Dura-Ace STI levers

Inspect pads and braking surfaces, check the complete cable or hose path, and confirm both controls feel consistent and return cleanly.

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 700c wheels · Rims: Shimano Dura-Ace CL · Hubs: Shimano Dura-Ace CL · Front tire: 700 x 23c Vittoria Diamante Pro Light

Spin both wheels and watch for side-to-side and vertical movement. Check spoke tension, rim condition and hub play.
Inspect both tire casings for cuts, cracking, plugs, bulges or exposed threads and confirm the installed sizes are safe for the rims and available frame and fork clearance.

Controls and contact points

Archived: Headset: 1 1/8" FSA Orbit CE Plus · Handlebar: FSA SLK Carbon compact · Stem: FSA OS-99 · Seatpost: Integrated · Saddle: Selle San Marco Aspide CS Ti

Apply the front brake and rock the bike to check for headset play or notchiness. Inspect the stem, handlebar and clamp zones, then confirm every fastener and control is secure. Look particularly closely for crushing, scoring or cracks at carbon handlebar clamp areas.
Check that the seatpost moves for adjustment and that the saddle, post and clamp hold securely without cracks, severe corrosion or damaged hardware.

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

2009 BH G4/ Dura-Ace