Rocky Mountain RC 50 2010 VS Specialized SIRRUS COMP 2008 specs comparison

Rocky Mountain RC 50

General Infos

Model	RC 50
Manufacturer	Rocky Mountain
Year of production	2010
Current price	Check price Here ==>
Color choice	-Red
Sizes	- 40cm (centimeters) - 45.5cm (centimeters) - 50cm (centimeters) - 55.5cm (centimeters) - 58cm (centimeters)
Sizes	- 40cm (centimeters) - 45.5cm (centimeters) - 50cm (centimeters) - 55.5cm (centimeters) - 58cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 28c Kenda Kwick Roller Sport
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano M421 Levers Tektro M530 Brakes
Hubs for disc brakes	Wheeltech Disc Super Sealed With Alloy QR
Rims manufacturer	Alex DC-19
Spoke nipples type	Not Available
Spoke wheel	Stainless

Frame and Body Specs

Frame materials	RMB Form 7005 Alloy Super Triple Butted With Delta Moulding
Frame type	TIG-welded and bonded
Handlebar construction	620 (millimeters) X 20 (millimeters) FSA XC 300
Handlebar extender	Optional
Handlebar stem details	RMB 7-degree Flip and flop
Headset size	FSA

Gearing Specifications

Bicycle chain	Shimano HG53
Bottom bracket shell width	Not Available
Bottom bracket type	Cartridge TH 7420
Crankset parts and sizes	34/50 Teeth FSA Vero
Gear shift levers	Shimano R440
Rear gear set	12 - 26 Teeth 9-speed

Rocky Mountain RC 50 Fork System Data

Derailleur (Front)	Braze-on With 34.9 Clamp Adaptor Shimano FD-R440
Derailleur (Rear)	Shimano 105
Fork material	Unicrown Crown Alloy
Fork type	Not Available

Other Specs of Rocky Mountain RC 50

Component group sets	Flat Bar Road Mix
Pedals details	VP 990S Steel Cage
Rear shock absorber	Not Available
Saddle seat	Rocky Mountain
Seat post extension	31.6 (millimeters) Diameter RMB

Specialized Sirrus Comp

General Infos

Model	Sirrus Comp
Manufacturer	Specialized
Year of production	2008
Current price	Check price Here ==>
Color choice	-Pewter
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	700 X 28c Specialized All Condition Armadillo
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Avid FR-5 Levers Linear Pull Brakes Forged Alloy
Hubs for disc brakes	Specialized Forged Alloy
Rims manufacturer	24-hole and 28-hole Alex AS1
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless Steel

Frame and Body Specs

Frame materials	Carbon Seatstays With Zertz Inserts A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	31.8 (millimeters) Flat Bar Body Geometry Event Zertz
Handlebar extender	Optional
Handlebar stem details	31.8 (millimeters) Clamp Specialized Comp-Set
Headset size	Integrated Threadless 1 1/8 (inches) Threadless Specialized Mindset

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano HG-73
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Sport Cartridge
Crankset parts and sizes	30/39/50 Teeth FSA Gossamer MegaExo
Gear shift levers	Shimano R-440
Rear gear set	11 - 28 Teeth 9-speed

Specialized Sirrus Comp Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on Shimano Tiagra
Derailleur (Rear)	Shimano Tiagra
Fork material	Aero Crown Carbon and chromoly Steerer
Fork type	With Speed Zertz Specialized FACT

Other Specs of Specialized Sirrus Comp

Component group sets	Road Mix
Pedals details	Alloy Cage With Toe Clips And Straps Composite Body
Rear shock absorber	Not Available
Saddle seat	Body Geometry Sonoma
Seat post extension	27.2 (millimeters) Diameter Specialized Carbon Fiber Wrappedd