GT TACHYON 4.0 2011 VS Specialized ROUBAIX COMP DOUBLE 2005 specs comparison

GT Tachyon 4.0
General InfosModel | Tachyon 4.0 |
Manufacturer | GT |
Year of production | 2011 |
Current price | Check price Here ==> |
Color choice |
-White |
Sizes |
- Extra small - Small - Medium - Large |
Sizes |
- Extra small - Small - Medium - Large |
Wheels And Breaking System
Bike front tire | 700 X 32c Kenda Kwest |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Shimano EF-51 Levers Tektro RX-1 Brakes |
Hubs for disc brakes | Formula Alloy |
Rims manufacturer | 32-hole Jalco DRX3000 |
Spoke nipples type | Brass |
Spoke wheel | 14ga. Stainless |
Frame and Body Specs
Frame materials | Aluminum |
Frame type | Aluminum |
Handlebar construction | GT Flat Bar |
Handlebar extender | Optional |
Handlebar stem details | GT Alloy |
Headset size | Integrated Sealed |
Gearing Specifications
Bicycle chain | KMC HG39 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Cartridge Sealed |
Crankset parts and sizes | 48/38/28t Teeth Shimano FC-M311 |
Gear shift levers | Shimano EF-51 |
Rear gear set | 11 - 32 Teeth 8-speed |
GT Tachyon 4.0 Fork System Data
Derailleur (Front) | Shimano M191 |
Derailleur (Rear) | Shimano Acera |
Fork material | Alloy |
Fork type | GT Type R Alloy |
Other Specs of GT Tachyon 4.0
Component group sets | Road Mix |
Pedals details | Alloy Body and Steel Cage |
Rear shock absorber | Not Available |
Saddle seat | GT Sport |
Seat post extension | GT Design Alloy |

Specialized Roubaix Comp Double
General InfosModel | Roubaix Comp Double |
Manufacturer | Specialized |
Year of production | 2005 |
Current price | Check price Here ==> |
Color choice |
-Carbon |
Sizes |
- 49cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 61cm (centimeters) |
Wheels And Breaking System
Bike front tire | 700 X 23c S-Works All-Condition Pro |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Shimano Dura-Ace Levers Shimano Ultegra Dual Pivot Brakes |
Hubs for disc brakes | Mavic Ksyrium Equipe |
Rims manufacturer | 20-hole and 24-hole Mavic Ksyrium Equipe |
Spoke nipples type | Not Available |
Spoke wheel | Aero Mavic Stainless Steel |
Frame and Body Specs
Frame materials | Carbon Fiber Composite |
Frame type | Bonded |
Handlebar construction | Specialized Roubaix |
Handlebar extender | Not Available |
Handlebar stem details | Specialized Pro |
Headset size | 1 1/8 (inches) Integrated Specialized Mindset |
Gearing Specifications
Bicycle chain | 1/2 X 3/32 (inches) Shimano Dura-Ace |
Bottom bracket shell width | 68 (millimeters) English |
Bottom bracket type | FSA CK-8680 |
Crankset parts and sizes | 39/53 Teeth FSA CK-8680 |
Gear shift levers | Shimano Dura-Ace STI Dual Control |
Rear gear set | 12 - 27 Teeth 10-speed |
Specialized Roubaix Comp Double Fork System Data
Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano Ultegra |
Derailleur (Rear) | Shimano Dura-Ace |
Fork material | Aero Crown Carbon Fiber |
Fork type | Specialized Full Carbon Zertz |
Other Specs of Specialized Roubaix Comp Double
Component group sets | Shimano Dura-Ace |
Pedals details | Composite Body |
Rear shock absorber | Not Available |
Saddle seat | BG Avatar |
Seat post extension | 27.2 (millimeters) Diameter Specialized Pav+¬ |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Tachyon 4.0 bike manual
- Find All parts, tires and accessories of GT Tachyon 4.0 Road here
- Get your Specialized Roubaix Comp Double manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Roubaix Comp Double Road here