Jamis COMMUTER 4 2010 VS Electra TOWNIE ORIGINAL 21D LADIES 2011 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

Electra Townie Original 21D Ladies

General Infos

Model	Townie Original 21D Ladies
Manufacturer	Electra
Year of production	2011
Current price	Check price Here ==>
Color choice	- matte pine green - persimmon - polished blue - white -Yellow
Sizes	- Not available

Wheels And Breaking System

Bike front tire	26 X 2.0'' Semi-slick Street
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Alloy Levers Alloy Linear Pull Brakes
Hubs for disc brakes	Alloy
Rims manufacturer	32-hole Electra Doublewall Alloy
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless

Frame and Body Specs

Frame materials	6061 Alloy c
Frame type	Alloy
Handlebar construction	Alloy Custom Bend Riser
Handlebar extender	Optional
Handlebar stem details	Alloy
Headset size	1 1/8 (inches) Steel

Gearing Specifications

Bicycle chain	KMC Z51
Bottom bracket shell width	Not Available
Bottom bracket type	Sealed Cartridge
Crankset parts and sizes	Forged Alloy
Gear shift levers	Shimano EZ Fire
Rear gear set	14 - 34 Teeth 7-speed

Electra Townie Original 21D Ladies Fork System Data

Derailleur (Front)	Shimano Tourney
Derailleur (Rear)	Shimano Tourney
Fork material	Alloy
Fork type	Suntour XCT Alloy Suspension

Other Specs of Electra Townie Original 21D Ladies

Component group sets	Co (millimeters)uter Mix
Pedals details	Resin
Rear shock absorber	Not Available
Saddle seat	Ergonomic With Soft Lycra
Seat post extension	Alloy Pillar