Jamis COMMUTER 4.0 2009 VS Ross CENTAUR W/FENDERS 1997 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

Ross Centaur w/fenders

General Infos

Model	Centaur w/fenders
Manufacturer	Ross
Year of production	1997
Current price	Check price Here ==>
Color choice	-Green
Sizes	- 16 (inches) - 18 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.75 (inches) Ross
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Aluminum Levers Shimano Nexus Roller Brake and Shimano Altus Front Brakes
Hubs for disc brakes	Rear: Shimano Nexus Roller Brake Front: Shimano Altus
Rims manufacturer	36-hole Alex 7X
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Richman Stainless Steel

Frame and Body Specs

Frame materials	Aluminum
Frame type	TIG-welded
Handlebar construction	Steel
Handlebar extender	Not Available
Handlebar stem details	Sameness Chromoly
Headset size	1 (inches) YST 665

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC 410
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	122.5 (millimeters) Spindle YST BB 621
Crankset parts and sizes	36 Teeth Dotek Aluminum
Gear shift levers	Shimano Inter-7 ST-7S20
Rear gear set	21 Teeth 7-speed Internal

Ross Centaur w/fenders Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Chromoly
Fork type	Ross

Other Specs of Ross Centaur w/fenders

Component group sets	Shimano Nexus
Pedals details	Resin
Rear shock absorber	Not Available
Saddle seat	Viscount 6000 With Springs
Seat post extension	25.4 (millimeters) Diameter Aluminum Micro-adjust