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Velopedia Bicycle Archive
2000 Boulder Bikes Sirius
Tandem (recumbent) bicycle from the Velopedia specification archive.
- Original MSRP
- $5,499.00
- Sizes
- Adjustable for rider height
- Colors
- Buyer's Choice
- Weight
- 46
- Archive ID
- 49008
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Current market
Checking current listings…Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum, butted w/replaceable derailleur hanger |
| Fork | Ballistic 600 XL, 1.0" travel |
| Fork Material | Aluminum/chromoly, triple-clamp crown |
| Rear Shock | Works Performance/Boulder Bikes Spring/Oil, 3.0" travel |
Drivetrain
| Component Group | Recumbent Mix |
|---|---|
| Shifters | SRAM Quartz |
| Front Derailleur | Shimano Ultegra, bottom-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano XTR SGS |
| Crankset | Sugino XD600 Tandem, 38/50/60 teeth |
| Bottom Bracket | Shimano BB-UN72, 122.5mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 11 - 30 teeth |
| Chain | SRAM PC-61, 1/2 x 3/32" |
| Pedals | Not included |
Brakes
| Brakes | Magura HS 33 brakes, Magura levers |
|---|
Cockpit & Contact Points
| Headset | 1" threadless Chris King NoThreadSet |
|---|---|
| Handlebar | RANS Tilt Bar-Stem Combo |
| Handlebar Extensions | N/A |
| Stem | RANS Tilt Bar-Stem Combo |
| Saddle | RANS recumbent seat |
| Seatpost | Control Tech Control Post |
Wheels & Tires
| Hubs | Front: SRAM Plasma, Rear: SRAM 3x7 |
|---|---|
| Rims | Sun Rims CR18, 32-hole |
| Spokes | DT stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 20 x 1.50" |
| Wheel Size | 20" wheels |
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.