Velopedia Bicycle Archive

2026 Pivot Firebird Expert XT Di2 | 29"

Original manufacturer specifications including Expert XT Di2 | 29" drivetrain, 29"; 27.5" wheels, geometry for 18 published sizes.

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What Velopedia knows

Model year
2026
Category
Mountain
Original MSRP
$7,799.00
Sizes
S, M, L, XL
Colors
Yolo, White Gold
Geometry
18 manufacturer sizes · Geometry context
Record coverage
18 preserved details · archived image · original MSRP · preserved geometry
Archive ID
900001657
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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

YoloWhite Gold

Frameset

Frame ConstructionFirebird — Ultra-light Hollow Core carbon frame
Frame MaterialCarbon Fiber
ForkFox Performance 38 29", 44mm offset, GRIP - 170mm
Rear Shock2025 Fox Factory Float X2

Drivetrain

Component GroupExpert XT Di2 | 29"
ShiftersShimano XT Di2 M8200 ISPEC EV 12-Speed
Rear DerailleurShimano XT Di2 M8200 SGS 12-Speed
CranksetRace Face Æffect R 32t
CassetteShimano XT M8200 10-51t
ChainShimano CN-M8100 12-Speed

Brakes

BrakesShimano XT M8220 4-piston; Rotors: Shimano RT-86 6-bolt - 203mm Shimano RT-86 6-bolt- 203mm

Cockpit & Contact Points

HeadsetPivot Precision Sealed Cartridge
HandlebarPhoenix Team Carbon - 20mm Rise 760mm(XS), 20mm Rise 780mm(SM), 35mm Rise 780mm(MD-XL)
StemPhoenix Team Enduro V2- 32mm(XS), 40mm(SM-LG), 50mm(XL)
SaddlePhoenix WTB Ride High Tail Trail (XS, SM), Phoenix WTB Ride Volt (Medium Width) (MD-XL)
SeatpostJD/Pivot YSP23GLS

Wheels & Tires

WheelsDT Swiss M1900 w/ DT Swiss 370 hub, 30mm - Mixed or 29" 15x110 F/12x157 R
Wheel Size29"; 27.5"

Size-specific frame data

Geometry

18 sizes · 13 measurements

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

MeasurementXS · MX · HighSM · MX · HighMD · MX · HighLG · MX · HighXL · MX · HighXS · MX · LowSM · MX · LowMD · MX · LowLG · MX · LowXL · MX · LowSM · 29" · HighMD · 29" · HighLG · 29" · HighXL · 29" · HighSM · 29" · LowMD · 29" · LowLG · 29" · LowXL · 29" · Low
Seat tube365 mm385 mm415 mm440 mm475 mm365 mm385 mm415 mm440 mm475 mm385 mm415 mm440 mm475 mm385 mm415 mm440 mm475 mm
Top tube558 mm596 mm622 mm635 mm657 mm559 mm597 mm623 mm636 mm658 mm594 mm599 mm633 mm655 mm595 mm620 mm634 mm656 mm
Head tube85 mm95 mm108 mm118 mm128 mm85 mm95 mm108 mm118 mm128 mm95 mm108 mm118 mm128 mm95 mm108 mm118 mm128 mm
Head-tube angle63.8°63.4°63.4°63.4°63.4°63.4°63.1°63.1°63.1°63.1°64.2°64.2°64.2°64.2°63.8°63.8°63.8°63.8°
Seat-tube angle77.6°77°77°77°77°76.8°76.2°76.2°76.2°76.2°77.75°77.75°77.75°77.75°77°77°77°77°
Chainstay / rear center430 / 438430 / 438432 / 440434 / 442437 / 445431 / 439431 / 439433 / 441435 / 443438 / 446430 / 438432 / 440434 / 442437 / 445431 / 439433 / 441435 / 443438 / 446
Wheelbase1179 / 11871217 / 12231248 / 12561271 / 12791299 / 13061180 / 11881218 / 12251249 / 12571272 / 12801300 / 13081217 / 12251248 / 12561271 / 12791299 / 13061218 / 12261249 / 12571272 / 12801300 / 1307
Bottom-bracket drop10 mm13 mm13 mm13 mm13 mm15 mm18 mm18 mm18 mm18 mm17 mm17 mm17 mm17 mm25 mm25 mm25 mm25 mm
Bottom-bracket height347 mm344 mm344 mm344 mm344 mm342 mm340 mm340 mm340 mm340 mm354 mm354 mm354 mm354 mm349 mm349 mm349 mm349 mm
Reach410 mm440 mm463 mm480 mm500 mm405 mm436 mm459 mm476 mm496 mm449 mm472 mm489 mm509 mm445 mm468 mm485 mm505 mm
Stack615 mm625 mm637 mm646 mm655 mm618 mm628 mm640 mm649 mm658 mm619 mm630 mm639 mm648 mm622 mm633 mm642 mm651 mm
Standover height678 mm682 mm687 mm708 mm712 mm675 mm677 mm681 mm703 mm708 mm692 mm697 mm719 mm720 mm687 mm692 mm713 mm716 mm
Wheel sizeMxMxMxMxMxMxMxMxMxMx29"29"29"29"29"29"29"29"

Geometry source: Pivot first-party headless CMS geometry ↗ 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

The manufacturer publishes more than one geometry configuration. Velopedia analyzes each labeled state separately while treating them as one chassis in archive comparisons.

XS geometry

Configuration

Archive context: Its bottom-bracket drop of 10 mm sits toward the shallower-drop end. The seat angle of 77.6° sits toward the steeper end. The head angle of 63.8° sits toward the slacker end.

Compared with 56 distinct mountain geometries in the XS-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 XS · MX · High · Short geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
Shimano CN-M8100 12-Speed Exact archived model
CassetteExact archived part
Shimano XT M8200 10-51t Interpreted as Shimano Deore XT · 12-speed Exact archived model
CranksetQualified part search
Race Face Æffect R 32t Named archived component — verify exact version
More qualified parts (2)
Rear derailleurMatching configuration
Shimano XT Di2 M8200 SGS 12-Speed Interpreted as Shimano Deore XT · 12-speed · Di2 Component family — verify exact version
ShiftersQualified part search
Shimano XT Di2 M8200 ISPEC EV 12-Speed Interpreted as Shimano Deore XT · 12-speed · Di2 Component family — verify exact version

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.

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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 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 →
  • DrivetrainConfirm every shift-system battery charges, every shift control works and the derailleur moves cleanly across the cassette. Make sure the matching shift-system charger is included, then measure chain wear and inspect the cassette teeth.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 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 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 Pivot Firebird Expert XT Di2 | 29" · Mountain · Published sizes: S, M, L, XL

Archived: Frame: Firebird — Ultra-light Hollow Core carbon frame · Fork: Fox Performance 38 29", 44mm offset, GRIP - 170mm

Archived: Fork: Fox Performance 38 29", 44mm offset, GRIP - 170mm · Rear shock: 2025 Fox Factory Float X2

Archived: Group: Expert XT Di2 | 29" · Shifters: Shimano XT Di2 M8200 ISPEC EV 12-Speed · Rear derailleur: Shimano XT Di2 M8200 SGS 12-Speed · Crankset: Race Face Æffect R 32t · Cassette: Shimano XT M8200 10-51t · Chain: Shimano CN-M8100 12-Speed

Archived: Brakes: Shimano XT M8220 4-piston; Rotors: Shimano RT-86 6-bolt - 203mm Shimano RT-86 6-bolt- 203mm

Archived: Wheel size: 29"; 27.5" · Wheels: DT Swiss M1900 w/ DT Swiss 370 hub, 30mm - Mixed or 29" 15x110 F/12x157 R

Controls and contact points

Archived: Headset: Pivot Precision Sealed Cartridge · Handlebar: Phoenix Team Carbon - 20mm Rise 760mm(XS), 20mm Rise 780mm(SM), 35mm Rise 780mm(MD-XL) · Stem: Phoenix Team Enduro V2- 32mm(XS), 40mm(SM-LG), 50mm(XL) · Seatpost: JD/PIVOT YSP23GLS · Saddle: Phoenix WTB Ride High Tail Trail (XS, SM), Phoenix WTB Ride Volt (Medium Width) (MD-XL)

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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