Velopedia Bicycle Archive

2001 Orange Mr. O Pro

Original manufacturer specifications including Downhill Mix drivetrain, 26" wheels, geometry for 1 published size.

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What Velopedia knows

Model year
2001
Category
Mountain
Sizes
18"
Colors
Gloss Black/Silver
Geometry
Legacy reference · Geometry context
Record coverage
30 preserved details · preserved geometry
Archive ID
36359
Image not available

Manufacturer catalog

Published sizes and colors

1 size · 1 color

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

Published sizes

18"

Published colors

Gloss Black/Silver

Frameset

Frame ConstructionTIG-welded
Frame Material6061 T6 aluminum
ForkAnswer Manitou X-Vert, 4.0" travel
Fork MaterialAluminum/magnesium, triple-clamp crown
Rear ShockShock Works Coil R, 5.5"-8.0" adjustable travel

Drivetrain

Component GroupDownhill Mix
ShiftersShimano Deore XT RapidFire SL
Front DerailleurShimano Deore XT
Rear DerailleurShimano Deore XT SGS
CranksetShimano Deore XT
Bottom BracketShimano BB-UN72
Rear Cogs9-speed
ChainShimano CN-IG51, 1/2 x 3/32"
PedalsOrange Flattie

Brakes

BrakesAvid Single Digit 20 brakes, Avid SD-1.9 L levers

Cockpit & Contact Points

Headset1 1/8" threadless Ritchey Scuzzy Logic
HandlebarOrange X Terminator
Handlebar ExtensionsNot included
StemOrange Box CNC
SaddleOrange Embroidered
SeatpostOrange Stick Up, 31.6mm diameter

Wheels & Tires

HubsHope Bulb
RimsAlex Widestyle, 32-hole
SpokesStainless steel, double-butted
Spoke NipplesBrass nipples
Front Tire26 x 2.10" Tioga Factory DH
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Historical reference geometry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 tube560 mm
Head-tube angle69°
Seat-tube angle72°
Chainstay / rear center420 mm
Wheelbase1057 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Model-level historical reference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 69°, the head angle sits toward the slacker end among mountain geometries represented in Velopedia for this period. Its 72° seat angle is toward the more relaxed end among the same-period mountain references.

Compared with 786 distinct legacy mountain geometries from model years 1999–2003. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 2001 mountain geometries. The source frame size remains unidentified.
See its 2001 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
Shimano CN-IG51, 1/2 x 3/32" Exact archived model
Bottom bracketExact archived part
Shimano BB-UN72 Exact archived model
CranksetExact archived part
Shimano Deore XT Named archived component — verify exact version
More qualified parts (6)
Front derailleurMatching configuration
Shimano Deore XT Interpreted as Shimano Deore XT · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano Deore XT SGS Interpreted as Shimano Deore XT · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Deore XT RapidFire SL Interpreted as Shimano Deore XT · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
31.6 mm seatpost Published diameter — verify length and setback
HeadsetQualified part search
1 1/8" threadless Ritchey Scuzzy Logic Named archived component — verify dimensions
RimsQualified part search
Alex Widestyle, 32-hole 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 →
  • FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.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 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 9-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: 2001 Orange Mr. O Pro · Mountain bike, front & rear suspension · Published sizes: 18"

Archived: Frame: TIG-welded · Fork: Answer Manitou X-Vert, 4.0" travel · Aluminum/magnesium, triple-clamp crown

Archived: Fork: Answer Manitou X-Vert, 4.0" travel · Rear shock: Shock Works Coil R, 5.5"-8.0" adjustable travel

Archived: Group: Downhill Mix · Shifters: Shimano Deore XT RapidFire SL · Front derailleur: Shimano Deore XT · Rear derailleur: Shimano Deore XT SGS · Crankset: Shimano Deore XT · Bottom bracket: Shimano BB-UN72 · Rear cogs: 9-speed · Chain: Shimano CN-IG51, 1/2 x 3/32"

Archived: Brakes: Avid Single Digit 20 brakes, Avid SD-1.9 L levers

Archived: Wheel size: 26" wheels · Rims: Alex Widestyle, 32-hole · Hubs: Hope Bulb · Front tire: 26 x 2.10" Tioga Factory DH

Controls and contact points

Archived: Headset: 1 1/8" threadless Ritchey Scuzzy Logic · Handlebar: Orange X Terminator · Stem: Orange Box CNC · Seatpost: Orange Stick Up, 31.6mm diameter · Saddle: Orange Embroidered · Pedals: Orange Flattie

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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