Rocky Mountain RC 50 D 2010 VS Specialized SIRRUS SPORT 2009 specs comparison

Rocky Mountain RC 50 D

General Infos

Model	RC 50 D
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 BR-M486 Levers Shimano BR-M486 Hydraulic Disc Brakes
Hubs for disc brakes	Wheeltech Disc Super Sealed With Alloy QR
Rims manufacturer	Alex TD-24
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	RMB 600 (millimeters) X 25 (millimeters)
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 D Fork System Data

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

Other Specs of Rocky Mountain RC 50 D

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

Specialized Sirrus Sport

General Infos

Model	Sirrus Sport
Manufacturer	Specialized
Year of production	2009
Current price	Check price Here ==>
Color choice	- Soft Black -Gloss Green
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	700 X 28c Specialized All Condition Sport
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano EF-50 Levers Alloy Linear Pull Brakes
Hubs for disc brakes	Rear: Specialized Forged Alloy Front: Specialized Sealed
Rims manufacturer	32-hole Alex S500
Spoke nipples type	Not Available
Spoke wheel	14ga. 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 Comp-Set
Headset size	1 1/8 (inches) Specialized Mindset

Gearing Specifications

Bicycle chain	KMC Z51
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	113 (millimeters) Spindle Sealed Cartridge
Crankset parts and sizes	28/38/48 Teeth Sugino With Chainguard
Gear shift levers	Shimano EF50 EZ-Fire
Rear gear set	12 - 25 Teeth 8-speed

Specialized Sirrus Sport Fork System Data

Derailleur (Front)	Shimano Nexave
Derailleur (Rear)	Shimano Sora
Fork material	Aero Crown Aluminum and chromoly
Fork type	Specialized Comp

Other Specs of Specialized Sirrus Sport

Component group sets	Road Mix
Pedals details	Alloy With Toe Clips And Strap
Rear shock absorber	Not Available
Saddle seat	Specialized BG Sonoma
Seat post extension	27.2 (millimeters) Diameter Alloy