Velopedia Bicycle Archive

1998 Boulder Bikes TSL 700 (Crmo)

Original manufacturer specifications including Shimano 600 Ultegra/Deore XT mix drivetrain, 700c wheels, 39 lb published weight.

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What Velopedia knows

Model year
1998
Category
Tandem
Original MSRP
$4,699.00
Sizes
Captain 22"/stoker 28", captain 23"/stoker 28", captain 24"/stoker 28"
Colors
Black, Blue, Green, Red, Silver, White, Yellow
Weight
39 lb
Geometry
Legacy reference · Geometry context
Record coverage
33 preserved details · original MSRP · preserved geometry
Archive ID
78242
Image not available

Manufacturer catalog

Published sizes and colors

3 sizes · 7 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

Captain 22"/stoker 28"captain 23"/stoker 28"captain 24"/stoker 28"

Published colors

BlackBlueGreenRedSilverWhite
+ 1 more color + 3 more colors
SilverWhiteYellow

Frameset

Frame ConstructionTIG-welded
Frame MaterialChromoly, double-butted
ForkMarzocchi Bomber Z-2
Fork MaterialAluminum, triple-clamp crown
Rear ShockWorks Performance spring/oil, 2.5" travel

Drivetrain

Component GroupShimano 600 Ultegra/Deore XT mix
ShiftersShimano 600 Ultegra STI Dual Control
Front DerailleurSachs Quarz, top-pull/clamp-on 31.8mm
Rear DerailleurShimano Deore XT SGS
CranksetSugino Fuse Tandem, 28/42/54 teeth
Bottom BracketShimano BB-UN72, 127.5mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 11 - 30 teeth
ChainSachs SC-M55, 1/2 x 3/32"
PedalsNot included

Brakes

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

Cockpit & Contact Points

Headset1 1/8" threadless Chris King NoThreadSet
HandlebarNitto aluminum
Handlebar ExtensionsN/A
StemControl Tech
SaddleSelle San Marco Concor Lite
SeatpostControl Tech Control Post, 28.6mm diameter

Wheels & Tires

HubsShimano Tandem
RimsSun Rims Rhyno Lite, 48-hole
SpokesWheelsmith stainless steel, 2.0mm straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 28c Panaracer Tourguard
Wheel Size700c wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

Historical model-level geometry recovered from Velopedia’s original archive database. The source does not identify which listed frame size this reference describes, so fit interpretation is intentionally limited and no size-normalized Archive Context is generated.

MeasurementLegacy reference
Top tube584.2 mm
Head-tube angle72°
Seat-tube angle73°
Chainstay / rear center431.8 mm
Wheelbase1790.7 mm
Fork offset / rake40.6 mm

Geometry source: Historical archive database — model-level reference geometry. The historical source provides one model-level geometry set and does not identify the corresponding frame size.

Geometry tools

Explore this historical geometry

Model-level historical reference

Period context: At 72°, the head angle sits toward the slacker end among tandem geometries represented in Velopedia for this period. Its 73° seat angle is close to the middle of the group among the same-period tandem references.

Compared with 86 distinct legacy tandem geometries from model years 1996–2000. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 1998 tandem geometries. The source frame size remains unidentified.
See its 1998 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
Front tireMatching fit standard
700 x 28c Panaracer Tourguard Named tire and published size
Brake padsMatching fit standard
Linear-pull brake pads Published brake type — verify pad mounting style
Bottom bracketExact archived part
Shimano BB-UN72, 127.5mm spindle Exact archived model
More qualified parts (5)
Rear derailleurMatching configuration
Shimano Deore XT SGS Interpreted as Shimano Deore XT · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano 600 Ultegra STI Dual Control Interpreted as Shimano Ultegra · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
28.6 mm seatpost Published diameter — verify length and setback
HeadsetQualified part search
1 1/8" threadless Chris King NoThreadSet Named archived component — verify dimensions
HubsQualified part search
Shimano Tandem Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.Inspect the frame and fork →
  • BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
  • SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 8-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 1998 Boulder Bikes TSL 700 (Crmo) · Tandem (road) · Published sizes: Captain 22"/stoker 28", captain 23"/stoker 28", captain 24"/stoker 28"

Archived: Frame: TIG-welded · Fork: Marzocchi Bomber Z-2 · Aluminum, triple-clamp crown

Archived: Fork: Marzocchi Bomber Z-2 · Rear shock: Works Performance spring/oil, 2.5" travel

Archived: 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 · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Sachs SC-M55, 1/2 x 3/32"

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

Archived: Wheel size: 700c wheels · Rims: Sun Rims Rhyno Lite, 48-hole · Hubs: Shimano Tandem · Front tire: 700 x 28c Panaracer Tourguard

Controls and contact points

Archived: Headset: 1 1/8" threadless Chris King NoThreadSet · Handlebar: Nitto aluminum · Stem: Control Tech · Seatpost: Control Tech Control Post, 28.6mm diameter · Saddle: Selle San Marco Concor Lite · Pedals: Not included

Before and during the test ride

Follow the full used-bike inspection order →

Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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