Jamis COMMUTER 2 2011 VS GT ZUM 4.0 2006 specs comparison

Jamis Commuter 2

General Infos

Model	Commuter 2
Manufacturer	Jamis
Year of production	2011
Current price	🛒 View Price →
Color choice	- cucumber - midnight blue -Bleck forest green
Sizes	- M: 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 F: 14 (inches) - 18 (inches)
Sizes	- M: 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 F: 14 (inches) - 18 (inches)

Wheels And Breaking System

Bike front tire	700 X 32c CST Marathon and Tour
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Tektro Alloy 4-finger Levers Alloy Direct Pull Brakes
Hubs for disc brakes	Formula Alloy
Rims manufacturer	32-hole Alex ID-19
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless Steel Stainless

Frame and Body Specs

Frame materials	6061 Triple Gauge Aluminum
Frame type	Aluminum
Handlebar construction	Jamis ARC
Handlebar extender	Optional
Handlebar stem details	NVO Components
Headset size	1 1/8 (inches) Sealed

Gearing Specifications

Bicycle chain	KMC Z7
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	122.5 (millimeters) Spindle FSA Sealed Cartridge
Crankset parts and sizes	44T Teeth Forged Alloy
Gear shift levers	SRAM 3.0 Comp Grip Shift
Rear gear set	11 - 32 Teeth 8-speed

Jamis Commuter 2 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	SRAM VIA
Fork material	Steel
Fork type	Hi Ten

Other Specs of Jamis Commuter 2

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

GT ZuM 4.0

General Infos

Model	ZuM 4.0
Manufacturer	GT
Year of production	2006
Current price	🛒 View Price →
Color choice	-Light Silver
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	26 X 1.25 (inches) Tioga City Slicker
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	110 (millimeters) Arms 70 (millimeters) DIN Pads Brakes Shimano ST-EF29 Levers Tektro Linear Pull
Hubs for disc brakes	Rear: Alloy QR Casette Hub Front: Alloy QR Hub
Rims manufacturer	Double Wall Alloy Rims With CNC Type Sidewall
Spoke nipples type	Brass CP
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	GT Triple Triangle 6061 Custom Tube-set
Frame type	TIG-welded
Handlebar construction	Butted 6061 Heat Treated Aluminum GT Riser Bar
Handlebar extender	Not Available
Handlebar stem details	Threadless 25 Degree Rise With 4 Bolt Alum Face Plate GT ATB
Headset size	FSA Integrated

Gearing Specifications

Bicycle chain	Shimano
Bottom bracket shell width	Not Available
Bottom bracket type	Cartridge Sealed
Crankset parts and sizes	22/32/44 Teeth Suntour XCT-252
Gear shift levers	Shimano ST-EF29
Rear gear set	11 - 32 Teeth 8-speed

GT ZuM 4.0 Fork System Data

Derailleur (Front)	Shimano Acera
Derailleur (Rear)	Shimano Acera
Fork material	Steel and aluminum and magnesium
Fork type	50 (millimeters) SR NRX-6000

Other Specs of GT ZuM 4.0

Component group sets	Co (millimeters)uter Mix
Pedals details	High Impact Nylon Platform
Rear shock absorber	Not Available
Saddle seat	WTB Speed V
Seat post extension	GT Aluminum 6061