Rocky Mountain RC 50 D 2009 VS Specialized SIRRUS 2007 specs comparison
Rocky Mountain RC 50 D
General Infos| Model | RC 50 D |
| Manufacturer | Rocky Mountain |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Anthracite and Orange |
| 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 M486 Hydraulic Levers Shimano M486 Disc Brakes |
| Hubs for disc brakes | Wheeltech Cartridge Disc |
| Rims manufacturer | Alex TD-24 |
| Spoke nipples type | Not Available |
| Spoke wheel | Stainless |
Frame and Body Specs
| Frame materials | 7005 Triple Butted Aluminum With Delta Process TT |
| Frame type | TIG-welded |
| Handlebar construction | Alloy Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy |
| Headset size | 1 1/8 (inches) FSA |
Gearing Specifications
| Bicycle chain | Shimano HG53-9 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | TH BB-8420 |
| 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) | Shimano 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 | Shimano Mix |
| Pedals details | VP 990s |
| Rear shock absorber | Not Available |
| Saddle seat | Selle Italia XO |
| Seat post extension | 31.6 (millimeters) Diameter Carbon |
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 |
Useful links and guides ....
- To know more about this exacte bike, Rocky Mountain provided us with the latest version of its RC 50 D bike manual
- Find All parts, tires and accessories of Rocky Mountain RC 50 D Commuter here
- Get your Specialized Sirrus manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Sirrus Commuter here