
Velopedia Bicycle Archive
2015 Giant Anthem Advanced 27.5 1
Original specifications: Shimano XT drivetrain · geometry for 4 published sizes.
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At a glance
- Model year
- 2015
- Category
- Mountain
- Original MSRP
- $4,850.00
- Sizes
- S, M, L, XL
- Colors
- Silver/Blue
- Geometry
- 4 manufacturer sizes · Geometry context
- In this record
- 25 specifications · archived image · original MSRP · geometry
- Archive ID
- 1219149
Model history 1 other year
Frameset
| Frame Construction | Advanced-grade composite w/ ALUXX SL rear triangle, 4" Maestro suspension |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Fox Float CTD Factory w/ 15mm thru-axle, OverDrive steerer, remote lockout, 100mm travel |
| Fork Material | Suspension |
| Rear Shock | Fox Float CTD Performance |
Drivetrain
| Component Group | Shimano XT |
|---|---|
| Shifters | Shimano XT |
| Front Derailleur | Shimano XT |
| Rear Derailleur | Shimano XT, Shadow+ |
| Crankset | Shimano XT, 26/38 |
| Bottom Bracket | Shimano, Press fit |
| Cassette | Shimano HG81 11x36, 10-speed |
| Rear Cogs | Shimano HG81 11x36, 10-speed |
| Chain | KMC X10 |
| Pedals | N/A |
Brakes
| Brakes | Shimano XT, Hydraulic disc, 160mm |
|---|
Cockpit & Contact Points
| Handlebar | Giant Contact SL Trail, Low rise, 31.8mm |
|---|---|
| Stem | Giant Contact SL |
| Saddle | Giant Contact, Forward |
| Seatpost | Giant Contact SL, 30.9mm |
Wheels & Tires
| Hubs | Giant P-XCR1 Composite WheelSystem; 28h, [F] 15mm axle, [R] 142x12 axle |
|---|---|
| Rims | Giant P-XCR1 Composite WheelSystem; 25mm wide, Tubeless compatible |
| Spokes | Giant P-XCR1 Composite WheelSystem; Sapim Race 14/15g |
| Front Tire | Schwalbe Racing Ralph EVO, Tubeless ready, 27x2.25, Folding |
| Rear Tire | Schwalbe Racing Ralph EVO, Tubeless ready, 27x2.25, Folding |
Size-specific frame data
Geometry
Geometry from the manufacturer’s chart. Effective top tube and reach are listed separately because they measure different things.
| Measurement | S/16 | M/18 | L/20 | XL/22 |
|---|---|---|---|---|
| Top tube | 574.04 mm | 594.36 mm | 614.68 mm | 635 mm |
| Head tube | 93.98 mm | 99.06 mm | 99.06 mm | 109.22 mm |
| Head-tube angle | 69.5° | 69.5° | 69.5° | 69.5° |
| Seat-tube angle | 73° | 73° | 73° | 73° |
| Chainstay / rear center | 431.8 mm | 431.8 mm | 431.8 mm | 431.8 mm |
| Wheelbase | 1079.5 mm | 1099.82 mm | 1120.14 mm | 1140.46 mm |
| Reach | 396 mm | 421 mm | 441 mm | 459 mm |
| Stack | 560 mm | 565 mm | 565 mm | 574 mm |
| Standover height | 713.74 mm | 744.22 mm | 782.32 mm | 805.18 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
S/16 geometry
Archive context: Its stack of 560 mm sits toward the lower end. The chainstay of 431.8 mm sits somewhat shorter than typical. Its reach of 396 mm sits somewhat shorter than typical.
Compared with 32 distinct mountain geometries in the Small-equivalent size cohort from model years 2015–2017 in the Velopedia archive.M/18 geometry
Archive context: Its stack of 565 mm sits toward the lower end. The chainstay of 431.8 mm sits somewhat shorter than typical. Its wheelbase of 1099.8 mm sits somewhat shorter than typical.
Compared with 31 distinct mountain geometries in the Medium-equivalent size cohort from model years 2015–2017 in the Velopedia archive.L/20 geometry
Archive context: Its stack of 565 mm sits toward the lower end. The chainstay of 431.8 mm sits somewhat shorter than typical. Its wheelbase of 1120.1 mm sits somewhat shorter than typical.
Compared with 31 distinct mountain geometries in the Large-equivalent size cohort from model years 2015–2017 in the Velopedia archive.XL/22 geometry
Archive context: Its stack of 574 mm sits toward the lower end. Its wheelbase of 1140.5 mm sits somewhat shorter than typical. Its reach of 459 mm sits somewhat longer than typical.
Compared with 25 distinct mountain geometries in the XL-equivalent size cohort from model years 2015–2017 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (6)
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 composite sections for impact or clamp damage, then check the metal joints and welds for dents or cracking. Ask about any crash history.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 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 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 →
Bike-specific inspection checklist 23 checks based on 6 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: 2015 Giant Anthem Advanced 27.5 1 · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Advanced-grade composite w/ ALUXX SL rear triangle, 4" Maestro suspension · Fork: Fox Float CTD Factory w/ 15mm thru-axle, OverDrive steerer, remote lockout, 100mm travel · Suspension
Suspension
Evaluate the suspension →Archived: Fork: Fox Float CTD Factory w/ 15mm thru-axle, OverDrive steerer, remote lockout, 100mm travel · Rear shock: Fox Float CTD Performance
Drivetrain
Check drivetrain wear →Archived: Group: Shimano XT · Shifters: Shimano XT · Front derailleur: Shimano XT · Rear derailleur: Shimano XT, Shadow+ · Crankset: Shimano XT, 26/38 · Bottom bracket: Shimano, Press fit · Cassette: Shimano HG81 11x36, 10-speed · Rear cogs: Shimano HG81 11x36, 10-speed · Chain: KMC X10
Brakes
Inspect the brakes →Archived: Brakes: Shimano XT, Hydraulic disc, 160mm
Wheels and tires
Check wheels and tires →Archived: Rims: Giant P-XCR1 Composite WheelSystem; 25mm wide, Tubeless compatible · Hubs: Giant P-XCR1 Composite WheelSystem; 28h, [F] 15mm axle, [R] 142x12 axle · Front tire: Schwalbe Racing Ralph EVO, Tubeless ready, 27x2.25, Folding · Rear tire: Schwalbe Racing Ralph EVO, Tubeless ready, 27x2.25, Folding
Controls and contact points
Archived: Handlebar: Giant Contact SL Trail, Low rise, 31.8mm · Stem: Giant Contact SL · Seatpost: Giant Contact SL, 30.9mm · Saddle: Giant Contact, Forward
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.


