Jamis COMMUTER 4.0 2009 VS Specialized SIRRUS PRO 2007 specs comparison

Jamis Commuter 4.0

General Infos

Model	Commuter 4.0
Manufacturer	Jamis
Year of production	2009
Current price	Check price Here ==>
Color choice	-Forrest Green and Bone
Sizes	- 14.5 (inches) - 16.5 (inches) - 18.5 (inches) - 20.5 (inches) - 22 (inches)
Sizes	- 14.5 (inches) - 16.5 (inches) - 18.5 (inches) - 20.5 (inches) - 22 (inches)

Wheels And Breaking System

Bike front tire	700 X 32c Vittoria Adventure Touring
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Tektro Levers Shimano M416 Mechanical Disc With 6 (inches) Rotors Brakes
Hubs for disc brakes	Rear: Shimano Alfine 8 Disc Front: Shimano Alfine Dynamo Centerlock Disc
Rims manufacturer	36-hole Weinmann Zac 2000
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless

Frame and Body Specs

Frame materials	6061 aluminum c
Frame type	TIG-welded
Handlebar construction	Classic Swept-back
Handlebar extender	Optional
Handlebar stem details	Satori Adjustable
Headset size	1 1/8 (inches) Slimstack

Gearing Specifications

Bicycle chain	KMC Z9000
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	110.5 (millimeters) Spindle Sealed Cartridge
Crankset parts and sizes	34/48 Teeth FSA Vero Compact
Gear shift levers	Shimano SL-S500
Rear gear set	18 Teeth 8-speed Internal

Jamis Commuter 4.0 Fork System Data

Derailleur (Front)	Shimano R440
Derailleur (Rear)	Shimano CT-S500 Tensioner
Fork material	Unicrown Crown Aluminum
Fork type	Jamis City and Cross

Other Specs of Jamis Commuter 4.0

Component group sets	Co (millimeters)uter Mix
Pedals details	Alloy Toe-clip Compatible
Rear shock absorber	Not Available
Saddle seat	Jamis Urban
Seat post extension	27.2 (millimeters) Diameter Alloy Suspension Micro Adjust

Specialized Sirrus Pro

General Infos

Model	Sirrus Pro
Manufacturer	Specialized
Year of production	2007
Current price	Check price Here ==>
Color choice	-Silver
Sizes	- Xlarge - xsmall - small - medium - large

Wheels And Breaking System

Bike front tire	700 X 28c Specialized All Condition Pro
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Avid FR5 Levers Avid Juicy 7 Front and Avid Single-Digit 7 Rear Brakes
Hubs for disc brakes	Specialized Alloy
Rims manufacturer	24-hole and 28-hole Jalco GX460
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Specialized A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	Body Geometry Event Zertz
Handlebar extender	Optional
Handlebar stem details	Specialized Comp-Set
Headset size	1 1/8 (inches) Integrated Specialized Mindset

Gearing Specifications

Bicycle chain	Shimano 105
Bottom bracket shell width	Not Available
Bottom bracket type	FSA MegaEXO
Crankset parts and sizes	30/39/50 Teeth FSA Gossamer
Gear shift levers	Shimano R770
Rear gear set	12 - 27 Teeth 1-speed

Specialized Sirrus Pro Fork System Data

Derailleur (Front)	Shimano Ultegra
Derailleur (Rear)	Shimano 105
Fork material	Aero Crown Carbon and aluminum Steerer
Fork type	Specialized FACT

Other Specs of Specialized Sirrus Pro

Component group sets	Co (millimeters)uter Mix
Pedals details	Crank Brothers Smarty
Rear shock absorber	Not Available
Saddle seat	Body Geometry Avatar
Seat post extension	27.2 (millimeters) Diameter Specialized Pavé II