Rocky Mountain RC 50 2012 VS Nishiki OPTIMA SC 1998 specs comparison
Rocky Mountain RC 50
General Infos| Model | RC 50 |
| Manufacturer | Rocky Mountain |
| Year of production | 2012 |
| 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 | Kenda Kwest 700 X 28c |
| Bike rear tire | Not Available |
| Bike wheel size | Not Available |
| Brakeset type | Promax TX-122 |
| Hubs for disc brakes | Shimano RM30 Shimano RM30 |
| Rims manufacturer | Unavailable Wheelset |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | RMB 6061 Alloy |
| Frame type | Not Available |
| Handlebar construction | RMB Zero5 |
| Handlebar extender | Not Available |
| Handlebar stem details | RMB Road Adjustable |
| Headset size | Cane Creek Five Series |
Gearing Specifications
| Bicycle chain | Shimano HG-53 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Shimano UN-26 |
| Crankset parts and sizes | Shimano M391 48/38/28t |
| Gear shift levers | Shimano Alivio Rapidfire 9spd |
| Rear gear set | Not Available |
Rocky Mountain RC 50 Fork System Data
| Derailleur (Front) | Shimano Acera |
| Derailleur (Rear) | Shimano Deore 9 Spd |
| Fork material | Not Available |
| Fork type | RMB Carbon Road |
Other Specs of Rocky Mountain RC 50
| Component group sets | Not Available |
| Pedals details | RMB City Steel Cage |
| Rear shock absorber | Unavailable Rear Shock |
| Saddle seat | RMB Urban Light |
| Seat post extension | RMB L2B |
Nishiki Optima SC
General Infos| Model | Optima SC |
| Manufacturer | Nishiki |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
-Okanagon Green |
| Sizes |
- 16 (inches) - 18 (inches) - 20 (inches) - womens 16 (inches) - womens 19 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 1.95 (inches) Rolleasy Comfort |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Aluminum Levers Shimano Altus Brakes |
| Hubs for disc brakes | Shimano RM40 |
| Rims manufacturer | 36-hole Weinmann 519 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Chung Nan Stainless Steel |
Frame and Body Specs
| Frame materials | 7005 aluminum c |
| Frame type | TIG-welded |
| Handlebar construction | 2 (inches) Rise Aluminum |
| Handlebar extender | Optional |
| Handlebar stem details | Aluminum |
| Headset size | 1 1/8 (inches) Victor VP-H94 Sealed |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC Z-51 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 110.5 (millimeters) Spindle Shimano BB-LP27 |
| Crankset parts and sizes | 24/34/42 Teeth Sugino Impel 250 |
| Gear shift levers | Grip Shift SRT-4.0 |
| Rear gear set | 12 - 28 Teeth 7-speed |
Nishiki Optima SC Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano Alivio Top-swing |
| Derailleur (Rear) | Shimano STX |
| Fork material | Unicrown Crown 4130 Chromoly |
| Fork type | Nishiki Comfort |
Other Specs of Nishiki Optima SC
| Component group sets | Shimano Alivio |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Selle Stratos Hyper Plush With Bumper Guard |
| Seat post extension | 27.2 (millimeters) Diameter Aluminum Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, Rocky Mountain provided us with the latest version of its RC 50 bike manual
- Find All parts, tires and accessories of Rocky Mountain RC 50 Commuter here
- Get your Nishiki Optima SC manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Nishiki Optima SC Commuter here