Lowest1.36:1
Highest4.17:1
Total range306%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×23; rear size isn’t listed.
Velopedia Bicycle Archive
2011 GT GTR Carbon Expert
Original specifications: Shimano Ultegra drivetrain · 700c wheels.
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At a glance
Archive #25060- Model year
- 2011
- Category
- Road
- Sizes
- XS, S, M, L, XL
- Colors
- Blue/white
- In this record
- 26 specifications · archived image
Original buildFull Carbon Monocoque · Shimano Ultegra · 700c wheels
Frameset
| Frame Construction | Carbon |
|---|---|
| Frame Material | Full Carbon Monocoque |
| Fork | GT full carbon |
| Fork Material | Carbon |
Drivetrain
| Component Group | Shimano Ultegra |
|---|---|
| Shifters | Shimano Ultegra STI |
| Front Derailleur | Shimano Ultegra |
| Rear Derailleur | Shimano Ultegra |
| Crankset | Shimano Ultegra, 50/34t teeth |
| Bottom Bracket | Shimano sealed cartridge |
| Cassette | Shimano |
| Rear Cogs | 10-speed, 12 - 25 teeth |
| Chain | Shimano |
Brakes
| Brakes | Shimano Ultegra Dual Pivot brakes, Shimano Ultegra levers |
|---|
Cockpit & Contact Points
| Headset | TH sealed |
|---|---|
| Handlebar | Ritchey Logic Pro Road Oversize |
| Handlebar Extensions | Not included |
| Stem | Ritchey Logic Pro |
| Saddle | Fizik Arione |
| Seatpost | GT Carbon |
Wheels & Tires
| Hubs | Mavic Kysrium Equipe |
|---|---|
| Rims | Mavic Kysrium Equipe |
| Spokes | Mavic Kysrium Equipe |
| Spoke Nipples | Mavic Kysrium Equipe |
| Front Tire | 700 x 23c Vittoria Rubino II |
| Wheel Size | 700c wheels |
No specifications match. Try a component name or clear your search.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
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 your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| 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
700 x 23c Vittoria Rubino II
Retailer offers
Vittoria Rubino Pro G2.0 Clincher Tire Black, 700x23
700x23c
Replacement option
Vittoria Rubino II on eBaySponsored links
Fizik Arione
Shimano Ultegra
50/34t teeth
More parts (7)Fewer parts
Shimano Ultegra
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shimano Ultegra
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shimano Ultegra STI
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Ritchey Logic Pro Road Oversize
Ritchey Logic Pro
Mavic Kysrium Equipe
Mavic Kysrium Equipe
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 700 x 23c Vittoria Rubino II
- Drivetrain
- 10-speed
- Bottom bracket / shell
- Shimano sealed cartridge
Equipment inspection checks 10 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: Carbon · Fork: GT full carbon · Carbon
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Ultegra · Shifters: Shimano Ultegra STI · Front derailleur: Shimano Ultegra · Rear derailleur: Shimano Ultegra · Crankset: Shimano Ultegra, 50/34t teeth · Bottom bracket: Shimano sealed cartridge · Cassette: Shimano · Rear cogs: 10-speed, 12 - 25 teeth · Chain: Shimano
Brakes
Inspect the brakes →Archived: Brakes: Shimano Ultegra Dual Pivot brakes, Shimano Ultegra levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Mavic Kysrium Equipe · Hubs: Mavic Kysrium Equipe · Front tire: 700 x 23c Vittoria Rubino II
Controls and contact points
Archived: Headset: TH sealed · Handlebar: Ritchey Logic Pro Road Oversize · Stem: Ritchey Logic Pro · Seatpost: GT Carbon · Saddle: Fizik Arione
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.