Velopedia Bicycle Archive

1999 Tomac 80 Magnum

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

Share owner experience

Selling this bike? Create a shareable bike record

What Velopedia knows

Model year
1999
Category
Mountain
Sizes
S, M, L
Colors
Guards Red
Geometry
Legacy reference · Geometry context
Record coverage
31 preserved details · archived image · preserved geometry
Archive ID
81943

Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

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

Published sizes

SML

Published colors

Guards Red

Frameset

Frame ConstructionMIG-welded
Frame MaterialEaston Custom Magnum
ForkAnswer Manitou X-Vert Carbon, 3.15" travel
Fork MaterialAluminum/magnesium, double triple-clamp crown
Rear ShockAnswer Bazooka Big Shaft, 3.15" travel

Drivetrain

Component GroupMountain Mix
ShiftersSRAM ESP 9.0 SL rear
Front DerailleurMr. Dirt Chainguide, chain retention device
Rear DerailleurSRAM ESP 9.0 SL
CranksetRace Face Turbine DH
Bottom BracketRace Face Taperlock, 145mm spindle
BB Shell Width110mm English
Rear Cogs9-speed, 11 - 28 teeth
ChainSachs SC-M90, 1/2 x 3/32"
PedalsAtomic Flatboy

Brakes

BrakesMagura Gustav M Disc brakes, Magura Gustav M levers

Cockpit & Contact Points

Headset1 1/8" threadless Race Face Real Seal
HandlebarProfile
Handlebar ExtensionsNot included
StemProfile
SaddleTioga Multicontrol XL
SeatpostProfile, 31.6mm diameter

Wheels & Tires

HubsMavic Dee Max Disc
RimsMavic Dee Max, 36-hole
SpokesMavic stainless steel, 2.0mm double-butted
Spoke NipplesBrass nipples
Front Tire26 x 2.10" Tioga Factory DH kevlar
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Historical reference geometry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 tube584.2 mm
Head-tube angle71°
Seat-tube angle70.5°
Chainstay / rear center431.8 mm
Wheelbase1073.1 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Model-level historical reference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 71°, the head angle sits close to the middle of the group among mountain geometries represented in Velopedia for this period. Its 70.5° seat angle is toward the more relaxed end among the same-period mountain references.

Compared with 1159 distinct legacy mountain geometries from model years 1997–2001. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 1999 mountain geometries. The source frame size remains unidentified.
See its 1999 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
Bottom bracketQualified part search
Race Face Taperlock, 145mm spindle Named archived component — verify dimensions
CranksetQualified part search
Race Face Turbine DH Named archived component — verify exact version
SeatpostMatching fit standard
31.6 mm seatpost Published diameter — verify length and setback
More qualified parts (1)
HeadsetQualified part search
1 1/8" threadless Race Face Real Seal 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 →
  • FrameInspect the complete frame and fork in bright light for cracks, dents, distortion, corrosion, impact marks, suspicious paint differences or signs of repair. Check the head tube, bottom-bracket area, dropouts, joints and clamped surfaces especially closely.Inspect the frame and fork →
  • BrakesBoth brakes should stop firmly and release without rubbing. Inspect pad thickness, rotor wear and alignment, 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: 1999 Tomac 80 Magnum · Mountain bike, front & rear suspension · Published sizes: S, M, L

Archived: Frame: MIG-welded · Fork: Answer Manitou X-Vert Carbon, 3.15" travel · Aluminum/magnesium, double triple-clamp crown

Archived: Fork: Answer Manitou X-Vert Carbon, 3.15" travel · Rear shock: Answer Bazooka Big Shaft, 3.15" travel

Archived: Group: Mountain Mix · Shifters: SRAM ESP 9.0 SL rear · Front derailleur: Mr. Dirt Chainguide, chain retention device · Rear derailleur: SRAM ESP 9.0 SL · Crankset: Race Face Turbine DH · Bottom bracket: Race Face Taperlock, 145mm spindle · Rear cogs: 9-speed, 11 - 28 teeth · Chain: Sachs SC-M90, 1/2 x 3/32"

Archived: Brakes: Magura Gustav M Disc brakes, Magura Gustav M levers

Archived: Wheel size: 26" wheels · Rims: Mavic Dee Max, 36-hole · Hubs: Mavic Dee Max Disc · Front tire: 26 x 2.10" Tioga Factory DH kevlar

Controls and contact points

Archived: Headset: 1 1/8" threadless Race Face Real Seal · Handlebar: Profile · Stem: Profile · Seatpost: Profile, 31.6mm diameter · Saddle: Tioga Multicontrol XL · Pedals: Atomic Flatboy

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.

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this bike?Help preserve its real-world history by sharing your owner experience.

Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Recently checked marketplace data

Market Snapshot

Checked Sep 21, 2026 4:57 am

Velopedia did not find a close used eBay listing in the latest snapshot. New and used listings remain separate.

Evidence standard Fixed-price and Best Offer item prices only Shipping and tax excluded Active asks, not completed sales
No close current matches found. Velopedia did not find an eBay listing confident enough to include in the latest snapshot.

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.

Scroll to Top