Bicycle Archive · Specification reportBicycle Archive · Specification reportVelopedia Archive ID 49041
| Model year | 2000 |
|---|---|
| Brand | Boulder Bikes |
| Model | Estes |
| Bicycle type | Tandem (road) |
| Archive ID | 49041 |
| Original MSRP | $4,999.00 |
| Colors | Buyer's Choice |
| Sizes | Large, medium, small |
| Weight | 37 lb |
| Frame construction | TIG-welded |
|---|---|
| Frame material | 7005 aluminum, double-butted w/replaceable derailleur hanger |
| Fork | Marzocchi Bomber Z-4, 2.75" travel |
| Fork material | Aluminum/magnesium, triple-clamp crown |
| Rear shock | N/A |
| Component group | Tandem Mix |
|---|---|
| Shifters | Shimano Ultegra STI Dual Control |
| Front derailleur | Shimano Ultegra, bottom-pull/clamp-on 35.0mm |
| Rear derailleur | Shimano XTR SGS |
| Crankset | Sugino XD600 Tandem, 28/42/54 teeth |
| Bottom bracket | Shimano BB-UN72, 122.5mm spindle |
| BB shell width | 68mm English |
| Rear cogs | 9-speed, 11 - 34 teeth |
| Chain | Shimano CN-HG92, 1/2 x 3/32" |
| Pedals | Not included |
| Brakes | Shimano Deore XTR cantilever brakes, Shimano Ultegra STI levers |
|---|
| Headset | 1 1/8" threadless Chris King NoThreadSet |
|---|---|
| Handlebar | ITM Super Italian Pro |
| Handlebar extensions | N/A |
| Stem | Control Tech |
| Saddle | SDG Ventura Comp, chromoly rails |
| Seatpost | Control Tech Control Post, 27.2mm diameter |
| Hubs | Hope Tandem |
|---|---|
| Rims | Sun Rims Rhyno Lite, 36-hole |
| Spokes | Wheelsmith stainless steel, 2.0mm straight gauge |
| Spoke nipples | Brass nipples |
| Front tire | 700 x 28c Panaracer Tourguard |
| Wheel size | 700c wheels |
| Head-tube angle | 72° |
|---|---|
| Seat-tube angle | 73° |
| Chainstay / rear center | 431.8 mm |
| Wheelbase | 1790.7 mm |
| Fork offset / rake | 44.4 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 22, 2026.