Velopedia Bicycle Archive

2003 Rocky Mountain Fusion

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

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What Velopedia knows

Model year
2003
Category
Mountain
Original MSRP
$685.00
Sizes
14.5", 16", 17.5", 18.5", 19.5", 21", 22.5"
Colors
DX Red/Flat Anthracite
Geometry
Legacy reference · Geometry context
Record coverage
32 preserved details · archived image · original MSRP · preserved geometry
Archive ID
39374
Model history 14 other years

Manufacturer catalog

Published sizes and colors

7 sizes · 1 color

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

Published sizes

14.5"16"17.5"18.5"19.5"21"22.5"

Published colors

DX Red/Flat Anthracite

Frameset

Frame ConstructionTIG-welded
Frame Material7005 aluminum
ForkRock Shox Judy TT, 80mm travel
Fork MaterialAluminum/magnesium, single crown
Rear ShockN/A

Drivetrain

Component GroupMountain Mix
ShiftersShimano Acera EZ Fire Plus
Front DerailleurShimano Acera, top-pull/clamp-on 31.8mm
Rear DerailleurShimano Deore SGS
CranksetShimano Alivio FC-MC20, 22/32/42 teeth
Bottom BracketShimano BB-UN25, 110mm spindle
BB Shell Width73mm English
Rear Cogs8-speed, 11 - 32 teeth
ChainShimano CN-HG50, 1/2 x 3/32"
PedalsBig Flats

Brakes

BrakesShimano BR-420 brakes, Shimano Acera levers

Cockpit & Contact Points

Headset1 1/8" threadless Ritchey
HandlebarRMB Rise
Handlebar ExtensionsN/A
StemRmb
SaddleRMB Custom
SeatpostRMB, 26.8mm diameter

Wheels & Tires

HubsShimano Alivio
RimsAlex Ace 19, 32-hole
SpokesDT stainless steel, 15ga. (1.8mm) straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 1.95" Maxxis MOFO XC
Wheel Size26" 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Historical reference geometry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 tube575 mm
Head-tube angle70.5°
Seat-tube angle73°
Chainstay / rear center425 mm
Wheelbase1055 mm
Fork offset / rake38.1 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 70.5°, the head angle sits somewhat slacker than typical among mountain geometries represented in Velopedia for this period. Its 73° seat angle is close to the middle of the group among the same-period mountain references.

Compared with 529 distinct legacy mountain geometries from model years 2001–2005. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 2003 mountain geometries. The source frame size remains unidentified.
See its 2003 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
ChainMatching fit standard
Shimano CN-HG50, 1/2 x 3/32" Exact archived model
Front tireMatching fit standard
26x1.95" Maxxis MOFO XC Named tire and published size
Brake padsExact archived part
Shimano BR-420 brakes Brake model identified — verify pad shape
More qualified parts (6)
Bottom bracketExact archived part
Shimano BB-UN25, 110mm spindle Exact archived model
CranksetExact archived part
Shimano Alivio FC-MC20, 22/32/42 teeth Exact archived model
Rear derailleurMatching configuration
Shimano Deore SGS Interpreted as Shimano Deore · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Acera EZ Fire Plus Interpreted as Shimano Acera · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
26.8 mm seatpost Published diameter — verify length and setback
HubsQualified part search
Shimano Alivio 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 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 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 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: 2003 Rocky Mountain Fusion · Mountain bike, front suspension · Published sizes: 14.5", 16", 17.5", 18.5", 19.5", 21", 22.5"

Archived: Frame: TIG-welded · Fork: Rock Shox Judy TT, 80mm travel · Aluminum/magnesium, single crown

Archived: Fork: Rock Shox Judy TT, 80mm travel

Archived: Group: Mountain Mix · Shifters: Shimano Acera EZ Fire Plus · Front derailleur: Shimano Acera, top-pull/clamp-on 31.8mm · Rear derailleur: Shimano Deore SGS · Crankset: Shimano Alivio FC-MC20, 22/32/42 teeth · Bottom bracket: Shimano BB-UN25, 110mm spindle · Rear cogs: 8-speed, 11 - 32 teeth · Chain: Shimano CN-HG50, 1/2 x 3/32"

Archived: Brakes: Shimano BR-420 brakes, Shimano Acera levers

Archived: Wheel size: 26" wheels · Rims: Alex Ace 19, 32-hole · Hubs: Shimano Alivio · Front tire: 26 x 1.95" Maxxis MOFO XC

Controls and contact points

Archived: Headset: 1 1/8" threadless Ritchey · Handlebar: RMB Rise · Stem: RMB · Seatpost: RMB, 26.8mm diameter · Saddle: RMB Custom · Pedals: Big Flats

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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Recently checked marketplace data

Market Snapshot

Checked Sep 20, 2026 9:47 am

Velopedia found 2 close used listings. That is not enough to publish a responsible market indication.

Evidence standard Fixed-price and Best Offer item prices only Shipping and tax excluded Active asks, not completed sales

Model-year coverage: 0 of 2 qualifying asking-price listings explicitly state 2003. There are not yet three year-confirmed used listings, so the used summary is labeled as broader model-family context.

Affiliate disclosure: As an eBay Partner, Velopedia may be compensated if you make a purchase through these links.

Qualified asking evidence22 high-confidence matches
Model-family used askingInsufficient sample2 close used listings found.
Model-family new askingNo listingsNo close matches in this condition.

See all current matches for this bicycle →

Listings shown have not passed their eBay-supplied end time. Velopedia rechecks matched bicycles on a protected weekly cycle; availability can still change between checks. Price calculations use active fixed-price and Best Offer item prices before shipping and tax. Auction bids, auction-only prices, classified ads, lower-confidence Review candidates and ended listings are excluded. These observations are not completed-sale prices, a certified appraisal or a guarantee of value.

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

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