Schwinn SIERRA GS 2007 VS Jamis COMMUTER 4.0 2008 specs comparison

Schwinn Sierra GS

General Infos

Model	Sierra GS
Manufacturer	Schwinn
Year of production	2007
Current price	Check price Here ==>
Color choice	- Green and Champagne - Green and Champagne - Violet and Lavender -Dark Red and Silver
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - womens 13 (inches) - womens 17 (inches)
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - womens 13 (inches) - womens 17 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.90 (inches) Smooth Rolling All Weather Touring
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	ProMax 3-Finger Lever Levers Pro Max Alloy Linear Pull Brakes
Hubs for disc brakes	Formula Sealed Alloy With QR
Rims manufacturer	36-hole Single Wall Silver Anodized
Spoke nipples type	CP Brass
Spoke wheel	14ga. Stainless Steel

Frame and Body Specs

Frame materials	Schwinn 'N Litened Aluminum
Frame type	TIG-welded
Handlebar construction	80 (millimeters) Rise Hi-Ten Steel
Handlebar extender	Optional
Handlebar stem details	Alloy Adjustable
Headset size	1 1/8 (inches) Threaded VP

Gearing Specifications

Bicycle chain	KMC Z51
Bottom bracket shell width	Not Available
Bottom bracket type	VP Semi-cartridge With JIS Square Taper
Crankset parts and sizes	28/38/48 Teeth SR Suntour XCC-T208
Gear shift levers	SRAM 3.0
Rear gear set	13 - 34 Teeth 7-speed

Schwinn Sierra GS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) SR Suntour FD-XR05
Derailleur (Rear)	SRAM 3.0
Fork material	Single Crown Aluminum and steel
Fork type	50 (millimeters) Travel SR Suntour M2000

Other Specs of Schwinn Sierra GS

Component group sets	Comfort Mix
Pedals details	Nylon Dual-compound Comfort
Rear shock absorber	Not Available
Saddle seat	Schwinn Comfort Tuned Plus
Seat post extension	26.6 (millimeters) Diameter Alloy Suspension Micro Adjust

Jamis Commuter 4.0

General Infos

Model	Commuter 4.0
Manufacturer	Jamis
Year of production	2008
Current price	Check price Here ==>
Color choice	-Cream
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 Kenda Kwest
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Tektro Levers Shimano BR-M415 With 160 (millimeters) Rotor Brakes
Hubs for disc brakes	Rear: Shimano Alfine 8-speed Intenal Front: Shimano M495 Center-lock
Rims manufacturer	36-hole Weinmann SPHYNIX
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	6061 aluminum c
Frame type	TIG-welded
Handlebar construction	Classic Swept-back
Handlebar extender	Not Available
Handlebar stem details	Adjustable Satori Forged
Headset size	1 1/8 (inches) Threaded Slimstack

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC Z9000
Bottom bracket shell width	68 (millimeters) English
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	Road Mix
Pedals details	Alloy Platform
Rear shock absorber	Not Available
Saddle seat	Jamis Comfort
Seat post extension	27.2 (millimeters) Diameter Suspension