Velopedia Bicycle Archive

2017 Giant Fathom 29 2

Original manufacturer specifications including geometry for 4 published sizes.

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What Velopedia knows

Model year
2017
Category
Mountain
Sizes
S, M, L, XL
Colors
Black/Green, Orange/Black
Geometry
4 manufacturer sizes · Geometry context
Record coverage
22 preserved details · archived image · preserved geometry
Archive ID
900002399
Model history 1 other year

Manufacturer catalog

Published sizes and colors

4 sizes · 2 colors

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

Published sizes

SMLXL

Published colors

Black/GreenOrange/Black

Frameset

Frame ConstructionALUXX SL-grade aluminum
Frame MaterialAluminum
ForkSR Suntour Raidon XC LO-R, OverDrive, 100mm travel
Rear ShockN/A

Drivetrain

ShiftersShimano Alivio
Front DerailleurShimano Deore
Rear DerailleurShimano Deore
CranksetFSA Comet, 24/38
Bottom BracketFSA, Press fit
CassetteShimano HG400 12x36, 9-speed
ChainKMC X9
PedalsPlatform, caged

Brakes

BrakesShimano M315, hydraulic disc, [F] 180mm, [R] 160mm

Cockpit & Contact Points

HandlebarGiant Connect Trail, 31.8mm
StemGiant Connect
SaddleGiant Connect Upright
SeatpostGiant Connect, 30.9mm

Wheels & Tires

HubsGiant Sport Tracker Disc, QR, [F] 28h, [R] 32h
RimsGiant Alloy, Double wall
SpokesStainless Steel, 14g
Front TireMaxxis Ikon, 29x2.20, Wire
Rear TireMaxxis Ikon, 29x2.20, Wire

Size-specific frame data

Geometry

4 sizes · 17 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

MeasurementSMLXL
Seat tube390 mm445 mm480 mm530 mm
Top tube585 mm605 mm625 mm645 mm
Head tube95 mm100 mm115 mm130 mm
Head-tube angle69°69°69°69°
Seat-tube angle73.5°73.5°73.5°73.5°
Chainstay / rear center442 mm442 mm442 mm442 mm
Wheelbase1100 mm1121 mm1142 mm1163 mm
Bottom-bracket drop55 mm55 mm55 mm55 mm
Reach406 mm425 mm441 mm457 mm
Stack603 mm608 mm622 mm636 mm
Standover height730 mm756 mm765 mm790 mm
Fork offset / rake42 mm42 mm42 mm42 mm
Trail98 mm98 mm98 mm98 mm
Crank length170 mm175 mm175 mm175 mm
Stem length80 mm90 mm100 mm110 mm
Handlebar width730 mm730 mm730 mm730 mm
Wheel size29"29"29"29"

Geometry source: Giant first-party size geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.

Geometry tools

Analyze a published size

Choose a size

S geometry

Archive context: The chainstay of 442 mm sits toward the longer rear-center end. Its stack of 603 mm sits toward the taller end. Its bottom-bracket drop of 55 mm sits toward the deeper-drop end.

Compared with 37 distinct mountain geometries in the Small-equivalent size cohort from model years 2015–2019 in the Velopedia archive.
Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze S geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
KMC X9 Exact archived model
CassetteExact archived part
Shimano HG400 12x36, 9-speed Exact archived model
Front tireMatching fit standard
Maxxis Ikon, 29x2.20, Wire Named tire and published size
More qualified parts (6)
Bottom bracketQualified part search
FSA, Press fit Named archived component — verify dimensions
CranksetQualified part search
FSA Comet, 24/38 Named archived component — verify exact version
Front derailleurMatching configuration
Shimano Deore Interpreted as Shimano Deore · 9-speed Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano Deore Interpreted as Shimano Deore · 9-speed Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Alivio Interpreted as Shimano Alivio · 9-speed Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
30.9 mm seatpost Published diameter — verify length and setback

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 →
  • BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.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 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 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: 2017 Giant Fathom 29 2 · Mountain · Published sizes: S, M, L, XL

Archived: Frame: ALUXX SL-grade aluminum · Fork: SR Suntour Raidon XC LO-R, OverDrive, 100mm travel

Archived: Fork: SR Suntour Raidon XC LO-R, OverDrive, 100mm travel

Archived: Shifters: Shimano Alivio · Front derailleur: Shimano Deore · Rear derailleur: Shimano Deore · Crankset: FSA Comet, 24/38 · Bottom bracket: FSA, Press fit · Cassette: Shimano HG400 12x36, 9-speed · Chain: KMC X9

Archived: Brakes: Shimano M315, hydraulic disc, [F] 180mm, [R] 160mm

Archived: Rims: Giant Alloy, Double wall · Hubs: Giant Sport Tracker Disc, QR, [F] 28h, [R] 32h · Front tire: Maxxis Ikon, 29x2.20, Wire · Rear tire: Maxxis Ikon, 29x2.20, Wire

Controls and contact points

Archived: Handlebar: Giant Connect Trail, 31.8mm · Stem: Giant Connect · Seatpost: Giant Connect, 30.9mm · Saddle: Giant Connect Upright · Pedals: Platform, caged

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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