Lowest1.20:1
Highest4.55:1
Total range379%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×28; rear size isn’t listed.
Velopedia Bicycle Archive
2011 GT Tachyon 1.0 GTW
Original specifications: Shimano Ultegra · 10-speed rear derailleur · 700c wheels.
Planning to sell? Draft your listing
At a glance
Archive #25071- Model year
- 2011
- Category
- Road
- Original MSRP
- $1,179.00
- Sizes
- Large frace
- Colors
- Slate silver
- In this record
- 25 specifications · archived image · original MSRP
Original buildAluminum · Road Mix · 700c wheels
Frameset
| Frame Construction | Aluminum |
|---|---|
| Frame Material | Aluminum |
| Fork | GT Type R Carbon |
| Fork Material | Carbon |
Drivetrain
| Component Group | Road Mix |
|---|---|
| Shifters | Shimano SL-R770 flat bar |
| Front Derailleur | Shimano FD-R770 |
| Rear Derailleur | Shimano Ultegra |
| Crankset | Shimano FC-R553, 50/39/30t teeth |
| Bottom Bracket | Shimano Integrated |
| Cassette | Shimano 105 |
| Rear Cogs | 10-speed, 11 - 25 teeth |
| Chain | Shimano |
Brakes
| Brakes | Tektro RX-3 brakes, Tektro RX-1 levers |
|---|
Cockpit & Contact Points
| Headset | Integrated Sealed |
|---|---|
| Handlebar | GT Type R double butted flat bar |
| Handlebar Extensions | Not included |
| Stem | NVO F-1 adjustable |
| Saddle | GT Type R race |
| Seatpost | GT Design Alloy |
Wheels & Tires
| Hubs | Shimano WH-R500 |
|---|---|
| Rims | Shimano WH-R500 |
| Spokes | Shimano WH-R500 |
| Front Tire | 700 x 28c Kenda Kiniption |
| 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 28c Kenda Kiniption
Retailer offers
Vittoria Zaffiro Pro V Clincher Tire Black, 700x28
700x28c
Replacement option
Other replacement options (1)
Specialized SW Mondo 2Bliss Tire Black, 700x28
700x28c
Replacement option
Kenda Kiniption on eBaySponsored links
Shimano FC-R553
50/39/30t teeth
More parts (2)Fewer parts
Shimano Ultegra
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
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 28c Kenda Kiniption
- Drivetrain
- 10-speed
- Bottom bracket / shell
- Shimano Integrated
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: Aluminum · Fork: GT Type R Carbon · Carbon
Drivetrain
Check drivetrain wear →Archived: Group: Road Mix · Shifters: Shimano SL-R770 flat bar · Front derailleur: Shimano FD-R770 · Rear derailleur: Shimano Ultegra · Crankset: Shimano FC-R553, 50/39/30t teeth · Bottom bracket: Shimano Integrated · Cassette: Shimano 105 · Rear cogs: 10-speed, 11 - 25 teeth · Chain: Shimano
Brakes
Inspect the brakes →Archived: Brakes: Tektro RX-3 brakes, Tektro RX-1 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Shimano WH-R500 · Hubs: Shimano WH-R500 · Front tire: 700 x 28c Kenda Kiniption
Controls and contact points
Archived: Headset: Integrated Sealed · Handlebar: GT Type R double butted flat bar · Stem: NVO F-1 adjustable · Seatpost: GT Design Alloy · Saddle: GT Type R race
Have you owned this model?Help document firsthand fit, ride and maintenance details that may no longer be available.
This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Find this bike on eBay
Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.