Specialized SIRRUS 2006 VS Rocky Mountain RC-ST 2005 specs comparison

Specialized Sirrus

General Infos

Model	Sirrus
Manufacturer	Specialized
Year of production	2006
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- Xsmall - small - medium - large - xlarge
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	60TPI Flak Jacket 700 X 28c Specialized Nimbus
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	85 (millimeters) Linear Pull EZ Fire Shimano EF-50 Integrated With Shift Lever Levers Multi Condition Pad Brakes Forged 6061 Alloy
Hubs for disc brakes	QR QR Rear: Specialized Forged Alloy Black Black Freehub Front: Specialized Forged Alloy
Rims manufacturer	32-hole Alex DA-16
Spoke nipples type	Brass Nipples
Spoke wheel	14ga. Straight Gauge Specialized Stainless Steel

Frame and Body Specs

Frame materials	A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	580 (millimeters) Width A1 Premium Aluminum Specialized Event
Handlebar extender	Optional
Handlebar stem details	17 Degree Rise Forged
Headset size	Alloy Cap Alloy Cone Spacer 1 1/8 (inches) Intellaset Threadless

Gearing Specifications

Bicycle chain	Shimano CN-HG50
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Sealed Cartridge Square Taper TH Sport
Crankset parts and sizes	48Sx38Sx28S Super Shifter III With Chainguard Teeth Sugino XD
Gear shift levers	EZ Fire Shimano EF-50
Rear gear set	12 - 26 Teeth 8-speed

Specialized Sirrus Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Nexave
Derailleur (Rear)	8-speed Long Cage Shimano Sora
Fork material	Unicrown Crown Chromoly
Fork type	Specialized Sport

Other Specs of Specialized Sirrus

Component group sets	Hybrid Mix
Pedals details	Specialized Platform Nylon With Krypton Top
Rear shock absorber	Not Available
Saddle seat	Body Geometry New Milano Comfort Max
Seat post extension	27.2 (millimeters) Diameter Preload Adjust Alloy Suspension

Rocky Mountain RC-ST

General Infos

Model	RC-ST
Manufacturer	Rocky Mountain
Year of production	2005
Current price	Check price Here ==>
Color choice	-Silver
Sizes	- 43cm (centimeters) - 46cm (centimeters) - 49cm (centimeters) - 52cm (centimeters) - 54cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 28c Hutchinson Globetrotter
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Deore M525 Hydraulic Levers Shimano Deore M525 Hydraulic Disc Brakes
Hubs for disc brakes	Mavic Speed City
Rims manufacturer	Mavic Speed City
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Columbus Nivacrom Zona
Frame type	TIG-welded
Handlebar construction	FSA
Handlebar extender	Optional
Handlebar stem details	FSA
Headset size	1 1/8 (inches) Threadless FSA Orbit X

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG30
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano 105
Crankset parts and sizes	FSA Gossamer
Gear shift levers	Shimano SL-R440 Flat Bar
Rear gear set	9-speed

Rocky Mountain RC-ST Fork System Data

Derailleur (Front)	Shimano FD-R443
Derailleur (Rear)	Shimano 105
Fork material	Unicrown Crown Aluminum
Fork type	Kinesis

Other Specs of Rocky Mountain RC-ST

Component group sets	Hybrid Mix
Pedals details	Shimano PD-A515
Rear shock absorber	Not Available
Saddle seat	Fi'zi:k Dolomiti
Seat post extension	FSA