Velopedia Bicycle Archive
2027 Giant Defy Advanced 4
Original manufacturer specifications including geometry for 6 published sizes.
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What Velopedia knows
- Model year
- 2027
- Category
- Road
- Original MSRP
- $2,300.00
- Sizes
- XS, S, M, M/L, L, XL
- Colors
- Storm Cloud
- Geometry
- 6 manufacturer sizes · Geometry context
- Record coverage
- 21 preserved details · archived image · original MSRP · preserved geometry
- Archive ID
- 900001196
Model history 1 other year
Frameset
| Frame Construction | Advanced-grade composite, 12x142mm thru-axle, disc |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Advanced-grade composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano CUES U6030 |
|---|---|
| Front Derailleur | Shimano CUES U6030 |
| Rear Derailleur | Shimano CUES U6030 |
| Crankset | Shimano FC-U6030-2, 34/50 XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mm |
| Bottom Bracket | Shimano, press fit |
| Cassette | Shimano CS-LG400, 10-speed, 11x39 |
| Chain | KMC X11 |
Brakes
| Brakes | Shimano BR-RS405 hydraulic, Giant MPH rotors [F]160mm, [R]160mm |
|---|
Cockpit & Contact Points
| Handlebar | Giant Contact SL D-Fuse XS:404/380mm, S:404/380mm, M:424/400mm, M/L:424/400mm, L:444/420mm, XL:444/420mm |
|---|---|
| Stem | Giant Contact AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm |
| Saddle | Giant Approach |
| Seatpost | Giant D-Fuse, composite, 14mm offset |
Wheels & Tires
| Hubs | Giant alloy, 12mm thru-axle |
|---|---|
| Rims | Giant S-R2 Disc wheelset, alloy, [F]25mm, [R]25mm |
| Spokes | Sapim |
| Front Tire | Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding |
| Rear Tire | Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | XS | S | M | ML | L | XL |
|---|---|---|---|---|---|---|
| Seat tube | 410 mm | 445 mm | 480 mm | 515 mm | 535 mm | 565 mm |
| Top tube | 515 mm | 530 mm | 545 mm | 560 mm | 575 mm | 595 mm |
| Head tube | 125 mm | 135 mm | 150 mm | 175 mm | 195 mm | 215 mm |
| Head-tube angle | 70.5° | 71.8° | 72.5° | 72.5° | 72.5° | 72.5° |
| Seat-tube angle | 74.5° | 74° | 73.5° | 73° | 73° | 73° |
| Chainstay / rear center | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm |
| Wheelbase | 995 mm | 994 mm | 998 mm | 1010 mm | 1025 mm | 1040 mm |
| Bottom-bracket drop | 75 mm | 75 mm | 75 mm | 70 mm | 70 mm | 70 mm |
| Reach | 369 mm | 375 mm | 380 mm | 384 mm | 393 mm | 402 mm |
| Stack | 527 mm | 541 mm | 558 mm | 577 mm | 596 mm | 615 mm |
| Standover height | 705 mm | 733 mm | 762 mm | 796 mm | 814 mm | 841 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Trail | 71.6 mm | 63.4 mm | 58.6 mm | 58.6 mm | 58.6 mm | 58.6 mm |
| Crank length | 165 mm | 165 mm | 170 mm | 170 mm | 172.5 mm | 172.5 mm |
| Stem length | 80 mm | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm |
| Handlebar width | 410 mm | 410 mm | 430 mm | 430 mm | 450 mm | 450 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
XS geometry
Archive context: Its bottom-bracket drop of 75 mm sits toward the deeper-drop end. Its trail of 71.6 mm sits toward the higher-trail end. The head angle of 70.5° sits toward the slacker end.
Compared with 54 distinct road geometries in the XS-equivalent size cohort from model years 2025–2027 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 XS geometry S geometry
Archive context: Its trail of 63.4 mm sits toward the higher-trail end. The chainstay of 420 mm sits somewhat longer than typical. Its stack of 541 mm sits somewhat taller than typical.
Compared with 76 distinct road geometries in the Small-equivalent size cohort from model years 2025–2027 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 M geometry
Archive context: Its bottom-bracket drop of 75 mm sits somewhat deeper than typical. Its reach of 380 mm sits somewhat shorter than typical. The chainstay of 420 mm sits somewhat longer than typical.
Compared with 77 distinct road geometries in the Medium-equivalent size cohort from model years 2025–2027 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 M geometry ML geometry
Archive context: The seat angle of 73° sits toward the more relaxed end. Its stack of 577 mm sits toward the taller end. Its bottom-bracket drop of 70 mm sits somewhat shallower than typical.
Compared with 77 distinct road geometries in the Medium-equivalent size cohort from model years 2025–2027 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 ML geometry L geometry
Archive context: The seat angle of 73° sits toward the more relaxed end. Its stack of 596 mm sits somewhat taller than typical. Its bottom-bracket drop of 70 mm sits somewhat shallower than typical.
Compared with 66 distinct road geometries in the Large-equivalent size cohort from model years 2025–2027 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 L geometry XL geometry
Archive context: The head angle of 72.5° sits somewhat slacker than typical. Its stack of 615 mm sits somewhat taller than typical. The chainstay of 420 mm sits somewhat longer than typical.
Compared with 59 distinct road geometries in the XL-equivalent size cohort from model years 2025–2027 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 XL geometry Parts & serviceability
Find replacement parts
KMC X11
Exact archived model
Shimano CS-LG400, 10-speed, 11x39
Exact archived model
Shimano BR-RS405 hydraulic
Brake model identified — verify pad shape
More qualified parts (3)
Shimano CUES U6030
Interpreted as Shimano CUES · 10-speed Named component · published drivetrain speed — verify exact version
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shimano CUES U6030
Interpreted as Shimano CUES · 10-speed Named component · published drivetrain speed — verify exact version
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shimano CUES U6030
Interpreted as Shimano CUES · 10-speed Named component · published drivetrain speed — 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.
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 →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 10-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. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2027 Giant Defy Advanced 4 · Road · Published sizes: XS, S, M, M/L, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Advanced-grade composite, 12x142mm thru-axle, disc · Fork: Advanced-grade composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano CUES U6030 · Front derailleur: Shimano CUES U6030 · Rear derailleur: Shimano CUES U6030 · Crankset: Shimano FC-U6030-2, 34/50 XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mm · Bottom bracket: Shimano, press fit · Cassette: Shimano CS-LG400, 10-speed, 11x39 · Chain: KMC X11
Brakes
Inspect the brakes →Archived: Brakes: Shimano BR-RS405 hydraulic, Giant MPH rotors [F]160mm, [R]160mm
Wheels and tires
Check wheels and tires →Archived: Rims: Giant S-R2 Disc wheelset, alloy, [F]25mm, [R]25mm · Hubs: Giant alloy, 12mm thru-axle · Front tire: Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding · Rear tire: Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding
Controls and contact points
Archived: Handlebar: Giant Contact SL D-Fuse XS:404/380mm, S:404/380mm, M:424/400mm, M/L:424/400mm, L:444/420mm, XL:444/420mm · Stem: Giant Contact AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm · Seatpost: Giant D-Fuse, composite, 14mm offset · Saddle: Giant Approach
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
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.