Boulder Bikes SIRIUS 2000 VS Vision R-850 1996 specs comparison
Boulder Bikes Sirius
General Infos| Model | Sirius |
| Manufacturer | Boulder Bikes |
| Year of production | 2000 |
| Current price | Check price Here ==> |
| Color choice |
-All colors available |
| Sizes |
- Rider can adjust manually |
| Sizes |
- Rider can adjust manually |
Wheels And Breaking System
| Bike front tire | 20 X 1.50 (inches) |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Magura Levers Magura HS 33 Brakes |
| Hubs for disc brakes | Rear: SRAM 3x7 Front: SRAM Plasma |
| Rims manufacturer | 32-hole Sun Rims CR18 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge DT Stainless Steel |
Frame and Body Specs
| Frame materials | Butted With Replaceable Derailleur Hanger 7005 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | RANS Tilt Bar-Stem Combo |
| Handlebar extender | Not Available |
| Handlebar stem details | RANS Tilt Bar-Stem Combo |
| Headset size | 1 (inches) Threadless Chris King NoThreadSet |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) SRAM PC-61 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 122.5 (millimeters) Spindle Shimano BB-UN72 |
| Crankset parts and sizes | 38/50/60 Teeth Sugino XD600 Tandem |
| Gear shift levers | SRAM Quartz |
| Rear gear set | 11 - 30 Teeth 7-speed |
Boulder Bikes Sirius Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano Ultegra |
| Derailleur (Rear) | Shimano XTR SGS |
| Fork material | Triple-clamp Crown Aluminum and chromoly |
| Fork type | 1.0 (inches) Travel Ballistic 600 XL |
Other Specs of Boulder Bikes Sirius
| Component group sets | Recumbent Mix |
| Pedals details | Optional |
| Rear shock absorber | 3.0 (inches) Travel Works Performance and Boulder Bikes Spring and Oil |
| Saddle seat | RANS Recumbent Seat |
| Seat post extension | Control Tech Control Post |
Vision R-850
General Infos| Model | R-850 |
| Manufacturer | Vision |
| Year of production | 1996 |
| Current price | Check price Here ==> |
| Color choice |
-All colors available |
| Sizes |
- Captain 5'5-6'7'/stoker 3'-6' (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 26 X 1.50 (inches) Specialized Nimbus Front: 20 X 1.50 (inches) Haro Holeshot |
| Bike rear tire | Not Available |
| Bike wheel size | Rear: 26 (inches) Wheels Front: 20 (inches) |
| Brakeset type | Magura Hydrostop Levers Magura Hydrostop and Sachs Disc Brakes |
| Hubs for disc brakes | Not Available |
| Rims manufacturer | 36-hole Sun Metal Rhyno |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Union Stainless Steel |
Frame and Body Specs
| Frame materials | Chromoly and hi-tensile Steel |
| Frame type | TIG-welded Steel |
| Handlebar construction | Vision Below Seat |
| Handlebar extender | Not Available |
| Handlebar stem details | Custom |
| Headset size | 1 (inches) YST Racing |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC SS-90 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 118 (millimeters) Spindle Shimano BB-UN71 |
| Crankset parts and sizes | 28/44/54 Teeth Sugino Fuse Tandem |
| Gear shift levers | Sachs Power Grip Extreme |
| Rear gear set | 11 - 28 Teeth 3-speed Internal X 7-speed |
Vision R-850 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano Deore XT GS |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Vision |
Other Specs of Vision R-850
| Component group sets | Shimano Deore XT |
| Pedals details | Shimano PD-A550 RX-100 |
| Rear shock absorber | Not Available |
| Saddle seat | Vision Nylon Mesh |
| Seat post extension | Not Available |
Useful links and guides ....
- To know more about this exacte bike, Boulder Bikes provided us with the latest version of its Sirius bike manual
- Find All parts, tires and accessories of Boulder Bikes Sirius Tandem here
- Get your Vision R-850 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Vision R-850 Tandem here
