Velopedia Bicycle Archive

2026 Giant XTC Advanced 29 1

Original manufacturer specifications including geometry for 4 published sizes.

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What Velopedia knows

Model year
2026
Category
Mountain
Original MSRP
$4,000.00
Sizes
S, M, L, XL
Colors
Abyss Black/Steampunk
Geometry
4 manufacturer sizes · Geometry context
Record coverage
21 preserved details · archived image · original MSRP · preserved geometry
Archive ID
900001267
Model history 3 other years
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Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

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

Published sizes

SMLXL

Published colors

Abyss Black/Steampunk

Frameset

Frame ConstructionAdvanced-grade composite, 12x148mm thru-axle
Frame MaterialCarbon Fiber
ForkFox 32 Float Step Cast Performance, 100mm, GRIP damper, 44mm offset, two-position remote lockout, Boost 15x110 Kabolt
Rear ShockN/A

Drivetrain

ShiftersShimano Deore XT M8100, 1x12
Front DerailleurN/A
Rear DerailleurShimano Deore XT M8100
CranksetShimano Deore XT M8120, 32t S:170mm, M:175mm, L:175mm, XL:175mm
Bottom BracketShimano, press fit
CassetteShimano SLX M7100, 10x51
ChainKMC X-12

Brakes

BrakesShimano Deore XT BR-M8100, hydraulic, Giant TR55 rotors [F]180mm, [R]160mm

Cockpit & Contact Points

HandlebarGiant Contact XC 35, 760x35mm
StemGiant Contact SL XC 35 S:60mm, M:70mm, L:80mm, XL:90mm
SaddleGiant Grit SL
SeatpostGiant Contact Switch Core dropper, remote S: 100mm travel / 30.9 x 350mm M: 100mm travel / 30.9 x 350mm L: 120mm travel / 30.9 x 400mm XL

Wheels & Tires

Hubs[F] Giant MTB alloy, 6-bolt, [R] Giant MTB alloy, 3-pawl driver, 6-bolt
RimsGiant XCR 2 Carbon 29 WheelSystem
SpokesSapim
Front Tire[F] Maxxis Rekon Race, 29x2.4, [R] Maxxis Rekon Race, 29x2.25, foldable, TLR, EXO
Rear Tire[F] Maxxis Rekon Race, 29x2.4, [R] Maxxis Rekon Race, 29x2.25, foldable, TLR, EXO

Size-specific frame data

Geometry

4 sizes · 16 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 tube380 mm431 mm475 mm525 mm
Top tube595 mm614 mm635 mm665 mm
Head tube95 mm95 mm105 mm115 mm
Head-tube angle69.5°69.5°70°70°
Seat-tube angle73.5°73.5°73.5°73.5°
Chainstay / rear center425 mm425 mm425 mm425 mm
Wheelbase1087 mm1106 mm1128 mm1159 mm
Bottom-bracket drop58 mm58 mm58 mm58 mm
Reach416 mm435 mm453 mm477 mm
Stack604 mm604 mm613 mm632 mm
Standover height737 mm764 mm791 mm829 mm
Fork offset / rake43 mm43 mm43 mm43 mm
Trail95 mm95 mm95 mm95 mm
Crank length170 mm175 mm175 mm175 mm
Stem length60 mm70 mm80 mm90 mm
Handlebar width760 mm760 mm760 mm760 mm

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 head angle of 69.5° sits toward the steeper end. Its wheelbase of 1087 mm sits toward the shorter end. Its trail of 95 mm sits toward the lower-trail end.

Compared with 180 distinct mountain geometries in the Small-equivalent size cohort from model years 2024–2027 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 X-12 Exact archived model
CassetteMatching configuration
Shimano SLX M7100, 10x51 Interpreted as Shimano SLX · 12-speed Named component · published drivetrain speed — verify exact version
Brake padsExact archived part
Shimano Deore XT BR-M8100, hydraulic Brake model identified — verify pad shape
More qualified parts (3)
CranksetQualified part search
Shimano Deore XT M8120, 32t S:170mm, M:175mm, L:175mm, XL:175mm Component family — verify exact version
Rear derailleurMatching configuration
Shimano Deore XT M8100 Interpreted as Shimano Deore XT · 12-speed Named component · published drivetrain speed — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
ShiftersOne check needed
Shimano Deore XT M8100, 1x12 Interpreted as Shimano Deore XT · 12-speed Component family — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.

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 →
  • FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.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 the full range under light load, measure chain wear and inspect the cassette or freewheel teeth. Skipping or hesitation can indicate wear, poor adjustment or mismatched parts.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. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
Bike-specific inspection checklist 21 checks based on 6 archived component groups Open checklistClose checklist
0 of 21 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: 2026 Giant XTC Advanced 29 1 · Mountain · Published sizes: S, M, L, XL

Archived: Frame: Advanced-grade composite, 12x148mm thru-axle · Fork: Fox 32 Float Step Cast Performance, 100mm, GRIP damper, 44mm offset, two-position remote lockout, Boost 15x110 Kabolt

Archived: Fork: Fox 32 Float Step Cast Performance, 100mm, GRIP damper, 44mm offset, two-position remote lockout, Boost 15x110 Kabolt

Archived: Shifters: Shimano Deore XT M8100, 1x12 · Rear derailleur: Shimano Deore XT M8100 · Crankset: Shimano Deore XT M8120, 32t S:170mm, M:175mm, L:175mm, XL:175mm · Bottom bracket: Shimano, press fit · Cassette: Shimano SLX M7100, 10x51 · Chain: KMC X-12

Archived: Brakes: Shimano Deore XT BR-M8100, hydraulic, Giant TR55 rotors [F]180mm, [R]160mm

Archived: Rims: Giant XCR 2 Carbon 29 WheelSystem · Hubs: [F] Giant MTB alloy, 6-bolt, [R] Giant MTB alloy, 3-pawl driver, 6-bolt · Front tire: [F] Maxxis Rekon Race, 29x2.4, [R] Maxxis Rekon Race, 29x2.25, foldable, TLR, EXO · Rear tire: [F] Maxxis Rekon Race, 29x2.4, [R] Maxxis Rekon Race, 29x2.25, foldable, TLR, EXO

Controls and contact points

Archived: Handlebar: Giant Contact XC 35, 760x35mm · Stem: Giant Contact SL XC 35 S:60mm, M:70mm, L:80mm, XL:90mm · Seatpost: Giant Contact Switch Core dropper, remote S: 100mm travel / 30.9 x 350mm M: 100mm travel / 30.9 x 350mm L: 120mm travel / 30.9 x 400mm XL · Saddle: Giant Grit SL

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 14, 2026 7:26 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

Model-year coverage: 0 of 1 qualifying asking-price listing explicitly state 2026. 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 evidence11 high-confidence match
Model-family used askingNo listingsNo close used matches in the latest snapshot.
Model-family new asking$2,888.151 current asking price

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.

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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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