Jamis COMMUTER 4 2010 VS Specialized SAN FRANCISCO 2 2009 specs comparison

Jamis Commuter 4

General Infos

Model	Commuter 4
Manufacturer	Jamis
Year of production	2010
Current price	Check price Here ==>
Color choice	- Pearl White -Benzegreen and Stainless
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches) - womens 14 (inches) - womens 18 (inches)
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches) - womens 14 (inches) - womens 18 (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 Tenera Levers Shimano BR-M416 Mechanical Disc Brakes
Hubs for disc brakes	Rear: Shimano Alfine Inter-8 Centerlock Disc Front: Shimano Alfine Dynamo Centerlock Disc
Rims manufacturer	36-hole Alex DC25 Disc Rims
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless Steel

Frame and Body Specs

Frame materials	6061 Triple Gauge Aluminum
Frame type	TIG-welded
Handlebar construction	Jamis ARC
Handlebar extender	Optional
Handlebar stem details	NVO TM4 Adjustable
Headset size	1 1/8 (inches) Threadless VP 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	48/34t Teeth FSA Vero Compact
Gear shift levers	Shimano SL-S500
Rear gear set	18 Teeth 8-speed Internal

Jamis Commuter 4 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on Shimano R440
Derailleur (Rear)	Shimano CT-S500 Tensioner
Fork material	Unicrown With Tappered Legs Crown Aluminum
Fork type	Jamis City and Cross

Other Specs of Jamis Commuter 4

Component group sets	Co (millimeters)uter Mix
Pedals details	City and Cross Style Alloy
Rear shock absorber	Not Available
Saddle seat	Jamis Metro Sport
Seat post extension	27.2 (millimeters) Diameter Jamis Alloy Micro-adjust

Specialized San Francisco 2

General Infos

Model	San Francisco 2
Manufacturer	Specialized
Year of production	2009
Current price	Check price Here ==>
Color choice	-Gloss Black
Sizes	- 16 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.50 (inches) Specialized Nimbus Sport
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Aluminum Linear-pull Levers Shimano BR-M415 Mechanical Disc Brakes
Hubs for disc brakes	Rear: Shimano IG-3 Speed Centerlock Disc Front: Specialized Hi Lo Disc
Rims manufacturer	28-hole and 32-hole Specialized HRD DW
Spoke nipples type	Not Available
Spoke wheel	15ga. Stainless Steel

Frame and Body Specs

Frame materials	Specialized A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	Globe Alloy
Handlebar extender	Optional
Handlebar stem details	Globe 3D Forged 8deg.
Headset size	1 1/8 (inches) Integrated

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) Shimano
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano BB-UN26
Crankset parts and sizes	42 Teeth Sugino
Gear shift levers	Shimano IG3
Rear gear set	3-speed Internal

Specialized San Francisco 2 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown A1 Premium Aluminum
Fork type	Globe

Other Specs of Specialized San Francisco 2

Component group sets	Co (millimeters)uter Mix
Pedals details	Globe Body Geometry Anti-slip Composite
Rear shock absorber	Not Available
Saddle seat	Specialized BG Indie XC
Seat post extension	27.2 (millimeters) Diameter Specialized Alloy Two Bolt