K2 ASTRAL 4.0 2005 VS Nishiki OPTIMA 1993 specs comparison
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➜ K2 Astral 4.0 price
➜ Nishiki Optima price
K2 Astral 4.0
General Infos| Model | Astral 4.0 |
| Manufacturer | K2 |
| Year of production | 2005 |
| Current price | 🛒 View Price → |
| Color choice | -Blue and Silver |
| Sizes | - Small - Medium - Large - Extra large |
| Sizes | - Small - Medium - Large - Extra large |
Wheels And Breaking System
| Bike front tire | 700 X 28c Vittoria Randonneur |
| Bike rear tire | Not Available |
| Bike wheel size | 700c Wheels |
| Brakeset type | Tektro LeversTektro Linear-pull Brakes |
| Hubs for disc brakes | Q and RAluminum |
| Rims manufacturer | 32-holeAlex DA-16 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight GaugeStainless Steel |
Frame and Body Specs
| Frame materials | 7000 aluminum c |
| Frame type | TIG-welded |
| Handlebar construction | Aluminum Flat Bar |
| Handlebar extender | Optional |
| Handlebar stem details | AdjustableAluminum |
| Headset size | 1 1/8 (inches) Integrated TH Intelliset |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches)KMC HG-53 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 28/38/48 TeethTruVativ Five-D |
| Gear shift levers | Shimano ST-R443 |
| Rear gear set | 11 - 28 Teeth8-speed |
K2 Astral 4.0 Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-onShimano FD-R443 |
| Derailleur (Rear) | Shimano Tiagra GS |
| Fork material | Unicrown CrownAluminum |
| Fork type | K2 |
Other Specs of K2 Astral 4.0
| Component group sets | Hybrid Mix |
| Pedals details | Aluminum Cage With Clips & Straps |
| Rear shock absorber | Not Available |
| Saddle seat | K2 ComfortTech |
| Seat post extension | Aluminum Micro-adjust |
Nishiki Optima
General Infos| Model | Optima |
| Manufacturer | Nishiki |
| Year of production | 1993 |
| Current price | 🛒 View Price → |
| Color choice | -Not found |
| Sizes | - 15.5 - 17.5 - 19.5 - 21.5 |
Wheels And Breaking System
| Bike front tire | 700 X 35c Cross |
| Bike rear tire | Not Available |
| Bike wheel size | 700c Wheels |
| Brakeset type | LeversShimano 400CX Brakes |
| Hubs for disc brakes | Shimano 400CX |
| Rims manufacturer | 32-holeRitchey USA Vantage Cross Sport |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Chrome-moly |
| Frame type | TIG-welded Steel |
| Handlebar construction | Alloy Flat 6deg |
| Handlebar extender | Not Available |
| Handlebar stem details | TIG Welded Rise With CRO-MO Clamp |
| Headset size | Not Available |
Gearing Specifications
| Bicycle chain | Shimano CN-HG50 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 20/32/40 TeethShimano 400CX |
| Gear shift levers | Shimano 400CX Rapidfire Plus |
| Rear gear set | 11 - 19 Teeth7-speed |
Nishiki Optima Fork System Data
| Derailleur (Front) | Shimano 700CX |
| Derailleur (Rear) | Shimano 700CX |
| Fork material | Not Available |
| Fork type | Chrome-moly |
Other Specs of Nishiki Optima
| Component group sets | Shimano 400CX Rapidfire Plus |
| Pedals details | Steel Cage and alloy Body With Clips And Straps |
| Rear shock absorber | Not Available |
| Saddle seat | Vetta (inches)SL (inches) Style With Waterproof Cover |
| Seat post extension | Kalloy SP 248 Alloy |
Useful links and guides ....
- To know more about this exacte bike, K2 provided us with the latest version of its Astral 4.0 bike manual
- Find All parts, tires and accessories of K2 Astral 4.0 Hybrid here
- Get your Nishiki Optima manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Nishiki Optima Hybrid here