Bicycle Archive · Specification report

1998 Boulder Bikes TSL 700 (Crmo)

Velopedia Archive ID 78242

Overview

Model year	1998
Brand	Boulder Bikes
Model	TSL 700 (CRMO)
Bicycle type	Tandem (road)
Archive ID	78242
Original MSRP	$4,699.00
Colors	Black, blue, green, red, silver, white, yellow
Sizes	Captain 22"/stoker 28", captain 23"/stoker 28", captain 24"/stoker 28"
Weight	39 lb

Frameset

Frame construction	TIG-welded
Frame material	Chromoly, double-butted
Fork	Marzocchi Bomber Z-2
Fork material	Aluminum, triple-clamp crown
Rear shock	Works Performance spring/oil, 2.5" travel

Drivetrain

Component group	Shimano 600 Ultegra/Deore XT mix
Shifters	Shimano 600 Ultegra STI Dual Control
Front derailleur	Sachs Quarz, top-pull/clamp-on 31.8mm
Rear derailleur	Shimano Deore XT SGS
Crankset	Sugino Fuse Tandem, 28/42/54 teeth
Bottom bracket	Shimano BB-UN72, 127.5mm spindle
BB shell width	68mm English
Rear cogs	8-speed, 11 - 30 teeth
Chain	Sachs SC-M55, 1/2 x 3/32"
Pedals	Not included

Brakes

Brakes	Shimano Deore XT V-Brake brakes, Shimano 600 Ultegra levers

Cockpit & contact points

Headset	1 1/8" threadless Chris King NoThreadSet
Handlebar	Nitto aluminum
Handlebar extensions	N/A
Stem	Control Tech
Saddle	Selle San Marco Concor Lite
Seatpost	Control Tech Control Post, 28.6mm diameter

Wheels & tires

Hubs	Shimano Tandem
Rims	Sun Rims Rhyno Lite, 48-hole
Spokes	Wheelsmith stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	700 x 28c Panaracer Tourguard
Wheel size	700c wheels

Geometry · Legacy reference

Top tube	584.2 mm
Head-tube angle	72°
Seat-tube angle	73°
Chainstay / rear center	431.8 mm
Wheelbase	1790.7 mm
Fork offset / rake	40.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 22, 2026.