GT TACHYON 4.0 2011 VS Co-Motion ESPRESSO DURA-ACE 1999 specs comparison

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
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

Co-Motion Espresso Dura-Ace

General Infos

Model	Espresso Dura-Ace
Manufacturer	Co-Motion
Year of production	1999
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- 50cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 55cm (centimeters) - 56cm (centimeters) - 57cm (centimeters) - 58cm (centimeters) - 59cm (centimeters) - 60cm (centimeters) - 62cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 23c Michelin Axial Pro
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Dura-Ace Levers Shimano Dura-Ace Dual Pivot Brakes
Hubs for disc brakes	Shimano Dura-Ace
Rims manufacturer	32-hole Mavic Open Pro
Spoke nipples type	Alloy Nipples
Spoke wheel	Double-butted Wheelsmith Stainless Steel

Frame and Body Specs

Frame materials	Reynolds 853
Frame type	TIG-welded
Handlebar construction	TTT Forma SL
Handlebar extender	Not Available
Handlebar stem details	Co-motion Chromoly
Headset size	1 (inches) Threadless Shimano Dura-Ace

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-7700
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	109.5 (millimeters) Spindle Shimano BB-7700
Crankset parts and sizes	39/53 Teeth Shimano Dura-Ace
Gear shift levers	Shimano Dura-Ace STI Dual Control
Rear gear set	Optional Of Gearing 9-speed

Co-Motion Espresso Dura-Ace Fork System Data

Derailleur (Front)	Bottom-pull Shimano Dura-Ace
Derailleur (Rear)	Shimano Dura-Ace
Fork material	Semi-sloping Crown Carbon Fiber Composite
Fork type	Wound Up

Other Specs of Co-Motion Espresso Dura-Ace

Component group sets	Shimano Dura-Ace
Pedals details	Optional
Rear shock absorber	Not Available
Saddle seat	Selle Italia Flite
Seat post extension	27.2 (millimeters) Diameter Thomson Elite