GT AEROSTREAM 2009 VS Nishiki OPTIMA SC 1998 specs comparison
GT Aerostream
General Infos| Model | Aerostream |
| Manufacturer | GT |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
- Silver -Olive |
| Sizes |
- Small - medium - large |
| Sizes |
- Small - medium - large |
Wheels And Breaking System
| Bike front tire | 700 X 47c |
| Bike rear tire | Not Available |
| Bike wheel size | 700c Wheels |
| Brakeset type | Tektro 4-Finger With Kraton Rubber Insert Levers Tektro V-brake Brakes |
| Hubs for disc brakes | Rear: Shimano Nexus 3 Speed Internal Gear Front: Alloy Sealed |
| Rims manufacturer | Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Stainless |
Frame and Body Specs
| Frame materials | Hydroformed Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | GT Streamline Alloy |
| Handlebar extender | Optional |
| Handlebar stem details | GT Streamline Quill |
| Headset size | 1 1/8 (inches) Threaded |
Gearing Specifications
| Bicycle chain | Gates Belt |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Shimano Cartridge |
| Crankset parts and sizes | Alloy 3-Piece |
| Gear shift levers | Shimano Nexus 3 Revo Twist |
| Rear gear set | 3-speed Internal |
GT Aerostream Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | GT Streamline |
Other Specs of GT Aerostream
| Component group sets | Co (millimeters)uter Mix |
| Pedals details | Dual Density Platform |
| Rear shock absorber | Not Available |
| Saddle seat | GT Streamline |
| Seat post extension | Alloy Micro Adjust |
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, GT provided us with the latest version of its Aerostream bike manual
- Find All parts, tires and accessories of GT Aerostream 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