Jamis ALLEGRO 4 2010 VS Specialized SIRRUS 2007 specs comparison

Jamis Allegro 4

General Infos

Model	Allegro 4
Manufacturer	Jamis
Year of production	2010
Current price	Check price Here ==>
Color choice	-Gloss Black and Pearl White
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	700 X 28c Vittoria Rondenour
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Tektro RX-1.0 Levers Tektro RX-1.0 Mini V With Modulator Front and Tektro RX-1.0 Mini V Rear Brakes
Hubs for disc brakes	Alex ALX-200
Rims manufacturer	20-hole and 24-hole Alex ALX-200
Spoke nipples type	Not Available
Spoke wheel	14ga. DT Champion

Frame and Body Specs

Frame materials	6061 Triple Butted Aluminum With Hydroform TT & DT
Frame type	TIG-welded
Handlebar construction	Jamis Alloy Flat Bar
Handlebar extender	Optional
Handlebar stem details	NVO F-2 Adjustable
Headset size	1 1/8 (inches) Threadless FSA Integrated IS

Gearing Specifications

Bicycle chain	KMC DX10SC
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	108 (millimeters) Spindle FSA Powerdrive
Crankset parts and sizes	50/34 Teeth FSA Vero Compact With Power Drive
Gear shift levers	Shimano SL-R770 Rapidfire Plus SL
Rear gear set	11 - 25 Teeth 10-speed

Jamis Allegro 4 Fork System Data

Derailleur (Front)	Bottom Pull Shimano R770
Derailleur (Rear)	Shimano 105
Fork material	Unicrown Crown Carbon Composite
Fork type	Jamis

Other Specs of Jamis Allegro 4

Component group sets	Co (millimeters)uter Mix
Pedals details	Alloy Platform
Rear shock absorber	Not Available
Saddle seat	Selle San Marco Ischia
Seat post extension	27.2 (millimeters) Diameter Jamis Carbon Fiber Micro Adjust

Specialized Sirrus

General Infos

Model	Sirrus
Manufacturer	Specialized
Year of production	2007
Current price	Check price Here ==>
Color choice	- Blue - Red and Silver -Gray
Sizes	- Xlarge - xsmall - small - medium - large

Wheels And Breaking System

Bike front tire	700 X 28c Specialized All Condition
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano EF-50 Levers 6061 Linear Pull Brakes
Hubs for disc brakes	Specialized Alloy
Rims manufacturer	32-hole Rear: Alex R500 Front: Alex R-500
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Specialized A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	Specialized Event
Handlebar extender	Optional
Handlebar stem details	Specialized 3D
Headset size	1 1/8 (inches) Integrated Specialized Mindset

Gearing Specifications

Bicycle chain	KMC Z72
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	113 (millimeters) Spindle Sport Cartridge
Crankset parts and sizes	28/38/48 Teeth Sugino XD
Gear shift levers	Shimano EF-50
Rear gear set	12 - 25 Teeth 8-speed

Specialized Sirrus Fork System Data

Derailleur (Front)	31.8 (millimeters) Clamp Shimano T301
Derailleur (Rear)	Shimano Sora
Fork material	Unicrown Crown Aluminum and chromoly Steerer
Fork type	Specialized Comp

Other Specs of Specialized Sirrus

Component group sets	Co (millimeters)uter Mix
Pedals details	Alloy Cage With Toe Clips And Straps Composite Body
Rear shock absorber	Not Available
Saddle seat	Body Geometry Milano Comfort Max
Seat post extension	27.2 (millimeters) Diameter Alloy Suspension