Jamis COMMUTER 4 2010 VS GT ZUM 4.0 2005 specs comparison

Jamis Commuter 4

General Infos

Model	Commuter 4
Manufacturer	Jamis
Year of production	2010
Current price	🛒 View Price →
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

GT ZuM 4.0

General Infos

Model	ZuM 4.0
Manufacturer	GT
Year of production	2005
Current price	🛒 View Price →
Color choice	-Red
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	Shimano ST-EF29 EZ Fire STI Levers Tektro Linear-pull Brakes
Hubs for disc brakes	Shimano Alivio
Rims manufacturer	Alex DA-22
Spoke nipples type	Not Available
Spoke wheel	Aero Stainless Steel

Frame and Body Specs

Frame materials	6061 T6 Aluminum
Frame type	TIG-welded
Handlebar construction	Aluminum
Handlebar extender	Optional
Handlebar stem details	GT ATB
Headset size	1 1/8 (inches) Integrated FSA

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches)
Bottom bracket shell width	Not Available
Bottom bracket type	Cartridge
Crankset parts and sizes	22/32/42 Teeth Suntour XCC-252
Gear shift levers	Shimano ST-EF29 EZ Fire STI
Rear gear set	11 - 32 Teeth 8-speed

GT ZuM 4.0 Fork System Data

Derailleur (Front)	Suntour XC-202
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown Aluminum and magnesium
Fork type	50 (millimeters) Travel SR Suntour NRX-6000

Other Specs of GT ZuM 4.0

Component group sets	Co (millimeters)uter Mix
Pedals details	Nylon
Rear shock absorber	Not Available
Saddle seat	GT
Seat post extension	Aluminum Micro-adjust