Specialized ROUBAIX EXPERT SL X3 2009 VS Jamis COMET 2011 specs comparison

Specialized Roubaix Expert SL X3

General Infos

Model	Roubaix Expert SL X3
Manufacturer	Specialized
Year of production	2009
Current price	Check price Here ==>
Color choice	- Gloss White - Team Carbon and Red -Gloss Carbon and Blue
Sizes	- 49cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 61cm (centimeters) - 64cm (centimeters)
Sizes	- 49cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 61cm (centimeters) - 64cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 23/25c Specialized Roubaix Pro
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Ultegra SL STI Levers Shimano Ultegra SL Brakes
Hubs for disc brakes	Shimano Ultegra SL
Rims manufacturer	Shimano Ultegra SL
Spoke nipples type	Not Available
Spoke wheel	Bladed Stainless Steel

Frame and Body Specs

Frame materials	Specialized FACT 9r Carbon With Zertz Inserts
Frame type	Bonded and monocoque
Handlebar construction	Specialized Pro
Handlebar extender	Optional
Handlebar stem details	Specialized Pro-Set
Headset size	1 3/8 (inches)-1 1/8 (inches) Specialized Campy-style

Gearing Specifications

Bicycle chain	Shimano Ultegra
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	Shimano Ultegra SL Hollowtech II
Crankset parts and sizes	30/39/52 Teeth Shimano Ultegra SL
Gear shift levers	Shimano Ultegra SL STI
Rear gear set	12 - 27 Teeth 10-speed

Specialized Roubaix Expert SL X3 Fork System Data

Derailleur (Front)	Braze-on Shimano Ultegra SL
Derailleur (Rear)	Shimano Ultegra SL
Fork material	Aero Crown Carbon and zertz
Fork type	Specialized FACT

Other Specs of Specialized Roubaix Expert SL X3

Component group sets	Shimano Ultegra SL
Pedals details	Alloy With Toe Clips And Strap
Rear shock absorber	Not Available
Saddle seat	Specialized BG Toupé Gel
Seat post extension	27.2 (millimeters) Diameter Specialized Pro SL

Jamis Comet

General Infos

Model	Comet
Manufacturer	Jamis
Year of production	2011
Current price	Check price Here ==>
Color choice	-Pearl white and monterey red
Sizes	- 47 (centimeters) - 51 (centimeters) - 54 (centimeters) - 56 (centimeters) - 58 (centimeters) - 61cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 23c Vittoria Zaffiro
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Tektro RX 4.1 Levers TRP T725 Aero Brakes
Hubs for disc brakes	Machined Ball Bearing
Rims manufacturer	20-hole and 24-hole Alex ALX-270
Spoke nipples type	Not Available
Spoke wheel	Bladed

Frame and Body Specs

Frame materials	Aero 7005 Butted Aluminum
Frame type	Aluminum
Handlebar construction	Profile Design T2+ Extensions
Handlebar extender	Optional
Handlebar stem details	Jamis Road 3D Forged Alloy
Headset size	1 1/8 (inches) FSA Internal

Gearing Specifications

Bicycle chain	KMC DX10SC
Bottom bracket shell width	Not Available
Bottom bracket type	FSA Mega EXO
Crankset parts and sizes	53/39t Teeth FSA Gossamer
Gear shift levers	Shimano Dura Ace
Rear gear set	11 - 25 Teeth 10-speed

Jamis Comet Fork System Data

Derailleur (Front)	Braze-on Shimano 105 FD-5700
Derailleur (Rear)	Shimano Ultegra RD-6700
Fork material	Carbon
Fork type	Windshield Aero

Other Specs of Jamis Comet

Component group sets	Triathlon Mix
Pedals details	Not Available
Rear shock absorber	Not Available
Saddle seat	Selle San Marco Ponza TT
Seat post extension	Jamis Aero Carbon