Velopedia Bicycle Archive

1993 Ross Mt. St. Helens

Original manufacturer specifications including Shimano Altus A10 Rapidfire Plus drivetrain, 26" wheels, geometry for 1 published size.

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What Velopedia knows

Model year
1993
Category
Mountain
Original MSRP
$449.00
Sizes
16, 19, 22
Geometry
Legacy reference · Geometry context
Record coverage
23 preserved details · original MSRP · preserved geometry
Archive ID
41879
Model history 2 other years
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Manufacturer catalog

Published sizes and colors

3 sizes

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

Published sizes

161922

Frameset

Frame ConstructionTIG-welded steel
Frame MaterialCroMo
ForkMarzocchi XC 50

Drivetrain

Component GroupShimano Altus A10 Rapidfire Plus
ShiftersShimano Altus A10 Rapidfire Plus
Front DerailleurShimano Altus A10
Rear DerailleurShimano Altus A10
CranksetShimano Altus A10, 26/36/46 teeth
Rear Cogs7-speed, 12 - 28 teeth
ChainKMC HG-50
PedalsVictor VP955 Resin

Brakes

BrakesShimano Altus A10 brakes, levers

Cockpit & Contact Points

HandlebarSameness steel
StemSameness CroMo
SaddleSella Prima Gelite
SeatpostUno alloy 330mm

Wheels & Tires

HubsShimano Altus
RimsWeinmann 2719, 36-hole
Front Tire26 x 2.00" Ritchey Mod Quad
Wheel Size26" wheels

Historical reference geometry

Geometry

Legacy reference · 5 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 tube528.3 mm
Head-tube angle70°
Seat-tube angle70°
Chainstay / rear center429.3 mm
Wheelbase1000.8 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Model-level historical reference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 70°, the head angle sits toward the slacker end among mountain geometries represented in Velopedia for this period. Its 70° seat angle is toward the more relaxed end among the same-period mountain references.

Compared with 849 distinct legacy mountain geometries from model years 1993–1995. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 1993 mountain geometries. The source frame size remains unidentified.
See its 1993 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
KMC HG-50 Exact archived model
Front tireMatching fit standard
26x2.00" Ritchey Mod Quad Named tire and published size
CranksetQualified part search
Shimano Altus A10, 26/36/46 teeth Named archived component — verify exact version
More qualified parts (4)
Front derailleurMatching configuration
Shimano Altus A10 Interpreted as Shimano Altus · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano Altus A10 Interpreted as Shimano Altus · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Altus A10 Rapidfire Plus Interpreted as Shimano Altus · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
HubsQualified part search
Shimano Altus 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.

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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 →
  • BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
  • SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing 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 7-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 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 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: 1993 Ross Mt. St. Helens · Mountain bike, front suspension · Published sizes: 16, 19, 22

Archived: Frame: TIG-welded steel · Fork: Marzocchi XC 50

Archived: Fork: Marzocchi XC 50

Archived: Group: Shimano Altus A10 Rapidfire Plus · Shifters: Shimano Altus A10 Rapidfire Plus · Front derailleur: Shimano Altus A10 · Rear derailleur: Shimano Altus A10 · Crankset: Shimano Altus A10, 26/36/46 teeth · Rear cogs: 7-speed, 12 - 28 teeth · Chain: KMC HG-50

Archived: Brakes: Shimano Altus A10 brakes, levers

Archived: Wheel size: 26" wheels · Rims: Weinmann 2719, 36-hole · Hubs: Shimano Altus · Front tire: 26 x 2.00" Ritchey Mod Quad

Controls and contact points

Archived: Handlebar: Sameness steel · Stem: Sameness CroMo · Seatpost: Uno alloy 330mm · Saddle: Sella Prima Gelite · Pedals: Victor VP955 Resin

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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