Specialized ROUBAIX PRO DURA-ACE 2010 VS GT TACHYON 4.0 2011 specs comparison

Specialized Roubaix Pro Dura-Ace

General Infos

Model	Roubaix Pro Dura-Ace
Manufacturer	Specialized
Year of production	2010
Current price	Check price Here ==>
Color choice	-Carbon
Sizes	- 49cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 61cm (centimeters)
Sizes	- 49cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 61cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 23c Specialized Roubaix Pro II
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Dura-Ace Levers Shimano Ultegra Brakes
Hubs for disc brakes	Roval Fusee SL
Rims manufacturer	Roval Fusee SL
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	FACT 9r Carbon
Frame type	FACT IS Construction
Handlebar construction	Specialized S-Works SL Ergo Carbon
Handlebar extender	Optional
Handlebar stem details	Specialized Pro-Set 3D Forged 4-bolt
Headset size	Aheadset

Gearing Specifications

Bicycle chain	Shimano Ultegra
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano Dura-Ace
Crankset parts and sizes	50/34t Teeth Shimano Dura-Ace
Gear shift levers	Shimano Dura-Ace STI
Rear gear set	11 - 28 Teeth 10-speed

Specialized Roubaix Pro Dura-Ace Fork System Data

Derailleur (Front)	Braze-on Shimano Ultegra
Derailleur (Rear)	Shimano Dura-Ace
Fork material	Aero Crown Carbon
Fork type	Specialized Roubaix

Other Specs of Specialized Roubaix Pro Dura-Ace

Component group sets	Shimano Dura-Ace Mix
Pedals details	Not Available
Rear shock absorber	Not Available
Saddle seat	Specialized Body Geometry Toupe With Hollow Ti Rails
Seat post extension	27.2 (millimeters) Diameter Specialized FACT Carbon With Zertz Insert

GT Tachyon 4.0

General Infos

Model	Tachyon 4.0
Manufacturer	GT
Year of production	2011
Current price	Check price Here ==>
Color choice	-White
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