Velopedia Bicycle Archive
2017 Giant Defy Advanced SL 1
Original manufacturer specifications including geometry for 6 published sizes.
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What Velopedia knows
- Model year
- 2017
- Category
- Road
- Sizes
- XS, S, M, M/L, L, XL
- Colors
- Composite/Neon Orange
- Geometry
- 6 manufacturer sizes · Geometry context
- Record coverage
- 23 preserved details · archived image · preserved geometry
- Archive ID
- 900002357
Model history 3 other years
Frameset
| Frame Construction | Advanced SL-grade composite, Integrated Seatpost |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Advanced SL-grade composite, Full-composite OverDrive 2 steerer |
| Fork Material | Carbon Fiber |
| Rear Shock | N/A |
Drivetrain
| Shifters | Shimano RS685 |
|---|---|
| Front Derailleur | Shimano Ultegra |
| Rear Derailleur | Shimano Ultegra |
| Crankset | Shimano Ultegra, 34/50 |
| Bottom Bracket | Shimano, Press fit |
| Cassette | Shimano Ultegra 11x32, 11-speed |
| Chain | KMC X11 SL |
| Pedals | N/A |
Brakes
| Brakes | Shimano RS805, hydraulic disc, RT81 Ice-Tech 140mm Centerlock rotors |
|---|
Cockpit & Contact Points
| Handlebar | Giant Contact SLR, Composite, 31.8mm |
|---|---|
| Stem | Giant Contact SLR, OverDrive 2, Composite w/ Titanium bolts |
| Saddle | Giant Contact SLR Neutral, Composite rails |
| Seatpost | Advanced SL-grade Composite, Integrated design |
Wheels & Tires
| Hubs | Giant SLR 1 Disc WheelSystem; Pawl driver, [F] 12mm axle, 20h [R] 142x12mm, 24h |
|---|---|
| Rims | Giant SLR 1 Disc WheelSystem; 30mm deep, 23mm wide, Tubeless compatible, Full-composite |
| Spokes | Giant SLR 1 Disc WheelSystem; Sapim Race stainless |
| Front Tire | Giant Gavia SLR Tubeless, 700x25, Folding |
| Rear Tire | Giant Gavia SLR Tubeless, 700x25, 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 | 145 mm | 165 mm | 190 mm | 210 mm | 230 mm |
| Head-tube angle | 71° | 72° | 72.5° | 72.5° | 72.5° | 72.5° |
| Seat-tube angle | 74.5° | 74° | 73.5° | 73° | 73° | 72.5° |
| Chainstay / rear center | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm |
| Wheelbase | 983 mm | 990 mm | 995 mm | 1007 mm | 1022 mm | 1037 mm |
| Bottom-bracket drop | 70 mm | 70 mm | 70 mm | 65 mm | 65 mm | 65 mm |
| Reach | 365 mm | 373 mm | 377 mm | 381 mm | 390 mm | 398 mm |
| Stack | 523 mm | 546 mm | 567 mm | 586 mm | 605 mm | 624 mm |
| Standover height | 737 mm | 754 mm | 777 mm | 790 mm | 813 mm | 833 mm |
| Fork offset / rake | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm |
| Trail | 70 mm | 64 mm | 60 mm | 60 mm | 60 mm | 60 mm |
| Crank length | 170 mm | 170 mm | 172.5 mm | 172.5 mm | 172.5 mm | 175 mm |
| Stem length | 80 mm | 90 mm | 110 mm | 110 mm | 110 mm | 120 mm |
| Handlebar width | 400 mm | 400 mm | 420 mm | 420 mm | 440 mm | 440 mm |
| Wheel size | 700C | 700C | 700C | 700C | 700C | 700C |
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 reach of 365 mm sits somewhat shorter than typical. The seat angle of 74.5° sits somewhat more relaxed than typical. The head angle of 71° sits somewhat steeper than typical.
Compared with 16 distinct road geometries in the XS-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 XS geometry S geometry
Archive context: The chainstay of 420 mm sits somewhat longer than typical. Its trail of 64 mm sits somewhat higher than typical. The seat angle of 74° sits somewhat more relaxed than typical.
Compared with 23 distinct road 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 M geometry
Archive context: Its reach of 377 mm sits toward the shorter end. The chainstay of 420 mm sits somewhat longer than typical. Its wheelbase of 995 mm sits somewhat shorter than typical.
Compared with 24 distinct road geometries in the Medium-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 M geometry ML geometry
Archive context: Its stack of 586 mm sits toward the taller end. Its bottom-bracket drop of 65 mm sits somewhat shallower than typical. The seat angle of 73° sits somewhat more relaxed than typical.
Compared with 24 distinct road geometries in the Medium-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 ML geometry L geometry
Archive context: Its stack of 605 mm sits toward the taller end. Its wheelbase of 1022 mm sits somewhat longer than typical. Its bottom-bracket drop of 65 mm sits somewhat shallower than typical.
Compared with 16 distinct road geometries in the Large-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 L geometry XL geometry
Archive context: The seat angle of 72.5° sits somewhat more relaxed than typical. Its wheelbase of 1037 mm sits close to the middle of the group. The head angle of 72.5° sits close to the middle of the group.
Compared with 10 distinct road geometries in the XL-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 XL geometry Parts & serviceability
Find replacement parts
KMC X11 SL
Exact archived model
Shimano Ultegra 11x32, 11-speed
Interpreted as Shimano Ultegra · 11-speed Component family — verify exact version
Shimano, Press fit
Named archived component — verify dimensions
More qualified parts (3)
Shimano Ultegra, 34/50
Named archived component — verify exact version
Shimano Ultegra
Interpreted as Shimano Ultegra · 11-speed Named component · published drivetrain speed — verify exact version
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shimano Ultegra
Interpreted as Shimano Ultegra · 11-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. 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 →
- 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 →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 11-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: 2017 Giant Defy Advanced SL 1 · Road · Published sizes: XS, S, M, M/L, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Advanced SL-grade composite, Integrated Seatpost · Fork: Advanced SL-grade composite, Full-composite OverDrive 2 steerer · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano RS685 · Front derailleur: Shimano Ultegra · Rear derailleur: Shimano Ultegra · Crankset: Shimano Ultegra, 34/50 · Bottom bracket: Shimano, Press fit · Cassette: Shimano Ultegra 11x32, 11-speed · Chain: KMC X11 SL
Brakes
Inspect the brakes →Archived: Brakes: Shimano RS805, hydraulic disc, RT81 Ice-Tech 140mm Centerlock rotors
Wheels and tires
Check wheels and tires →Archived: Rims: Giant SLR 1 Disc WheelSystem; 30mm deep, 23mm wide, Tubeless compatible, Full-composite · Hubs: Giant SLR 1 Disc WheelSystem; Pawl driver, [F] 12mm axle, 20h [R] 142x12mm, 24h · Front tire: Giant Gavia SLR Tubeless, 700x25, Folding · Rear tire: Giant Gavia SLR Tubeless, 700x25, Folding
Controls and contact points
Archived: Handlebar: Giant Contact SLR, Composite, 31.8mm · Stem: Giant Contact SLR, OverDrive 2, Composite w/ Titanium bolts · Seatpost: Advanced SL-grade Composite, Integrated design · Saddle: Giant Contact SLR Neutral, Composite rails
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.