BH G4/ DURA-ACE DI2 2009 VS Jamis COMET 27 2004 specs comparison

BH G4/ Dura-Ace Di2

General Infos

Model	G4/ Dura-Ace Di2
Manufacturer	BH
Year of production	2009
Current price	Check price Here ==>
Color choice	-Red
Sizes	- 52cm (centimeters) - 54cm (centimeters) - 55.5cm (centimeters) - 57cm (centimeters) - 58.5cm (centimeters)
Sizes	- 52cm (centimeters) - 54cm (centimeters) - 55.5cm (centimeters) - 57cm (centimeters) - 58.5cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 23c Vittoria Diamante Pro Light
Bike rear tire	Not Available
Bike wheel size	Not Available
Brakeset type	Shimano Dura-Ace Di2 Levers Shimano Dura-Ace Dual Pivot Brakes
Hubs for disc brakes	Not Available
Rims manufacturer	Shimano Dura-Ace CL
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	High Modulus Carbon Fiber
Frame type	Bonded and monocoque
Handlebar construction	FSA SLK Carbon Compact
Handlebar extender	Optional
Handlebar stem details	FSA OS-99
Headset size	1 1/8 (inches) FSA Orbit CE Plus

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano Hollowtech II
Crankset parts and sizes	34/50 Teeth Shimano Dura-Ace
Gear shift levers	Shimano Dura-Ace Di2
Rear gear set	11 - 25 Teeth 10-speed

BH G4/ Dura-Ace Di2 Fork System Data

Derailleur (Front)	Shimano Dura-Ace Di2
Derailleur (Rear)	Shimano Dura-Ace Di2
Fork material	Aero Crown Carbon Fiber and carbon Fiber Steerer
Fork type	Not Available

Other Specs of BH G4/ Dura-Ace Di2

Component group sets	Shimano Dura-Ace Di2 Electric
Pedals details	Not Available
Rear shock absorber	Not Available
Saddle seat	Selle San Marco Aspide CS Ti
Seat post extension	Integrated

Jamis Comet 27

General Infos

Model	Comet 27
Manufacturer	Jamis
Year of production	2004
Current price	Check price Here ==>
Color choice	-Flame Red and Gloss Black
Sizes	- Extra small - Small - Medium - Large - Extra large

Wheels And Breaking System

Bike front tire	700 X 23c Hutchinson Carbon Comp
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Ultegra STI Dual Control Levers Shimano Ultegra Dual Pivot Brakes
Hubs for disc brakes	Not Available
Rims manufacturer	Mavic Ksyrium Elite
Spoke nipples type	Not Available
Spoke wheel	Mavic

Frame and Body Specs

Frame materials	Aluminum and carbon Fiber
Frame type	TIG-welded
Handlebar construction	Easton EA70
Handlebar extender	Optional
Handlebar stem details	Easton EA-70
Headset size	1 1/8 (inches) Threadless Cane Creek ZS-2

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG92
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	118.5 (millimeters) Spindle Shimano BB-6500
Crankset parts and sizes	30/42/52 Teeth Shimano Ultegra Triple
Gear shift levers	Shimano Ultegra STI Dual Control
Rear gear set	11 - 23 Teeth 9-speed

Jamis Comet 27 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Ultegra Triple
Derailleur (Rear)	Shimano Ultegra GS
Fork material	Aero Crown Carbon Fiber Composite With Aluminum Steerer
Fork type	Easton EC70

Other Specs of Jamis Comet 27

Component group sets	Shimano Ultegra Triple
Pedals details	Optional
Rear shock absorber	Not Available
Saddle seat	Titanium Rails Fi'zi:k Pave
Seat post extension	27.2 (millimeters) Diameter Micro-adjust Carbon Fiber