Pivot
Firebird MX Ride GX Eagle Transmission MX
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Geometry
Geometry
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Geometry
Geometry
Frame geometry
| Geometry | LG | MD | SM | XL | XS |
|---|---|---|---|---|---|
| Stack | 646mm | 637mm | 625mm | 655mm | 615mm |
| Reach | 480mm | 463mm | 440mm | 500mm | 410mm |
| Headtube length | 118mm | 108mm | 95mm | 128mm | 85mm |
| Headtube angle | 63.4deg | 63.4deg | 63.4deg | 63.4deg | 63.8deg |
| BB height | 344mm | 344mm | 344mm | 344mm | 347mm |
| BB drop | 1.3mm | 1.3mm | 1.3mm | 1.3mm | 1mm |
| Trail | — | — | — | — | — |
| Fork length | — | — | — | — | — |
| Fork offset | — | — | — | — | — |
| Front center | — | — | — | — | — |
| Chainstay length | — | — | — | — | — |
| Wheelbase | — | — | — | — | — |
| Top tube | 635mm | 622mm | 596mm | 657mm | 558mm |
| Standover height | 708mm | 687mm | 682mm | 712mm | 678mm |
| Seat tube length | 440mm | 415mm | 385mm | 475mm | 365mm |
| Seat tube angle | 77deg | 77deg | 77deg | 77deg | 77.6deg |
Spec geometry
| Geometry | LG | MD | SM | XL | XS |
|---|---|---|---|---|---|
| Crank length | 170mm | 170mm | 165mm | 170mm | 165mm |
| Stem length | 45mm | 45mm | 45mm | 45mm | 35mm |
| Handlebar width | 800mm | 780mm | 780mm | 800mm | 780mm |
| Handlebar reach | — | — | — | — | — |
| Handlebar drop | — | — | — | — | — |
| Saddle width | — | — | — | — | — |
| Dropper post travel | — | — | — | — | — |
| Seatpost offset | — | — | — | — | — |
Specs
Full specs
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Specs
Full specs
Frame
Frame
Pivot Firebird
Suspension
Rear shock
Fox Float X2 Factory (2025)
Fork
Fox 38 Performance, 29in, 44mm offset, GRIP damper, 170mm
Brakes
Front brake
SRAM Maven, 4-piston hydraulic disc
Rear brake
SRAM Maven, 4-piston hydraulic disc
Front rotor
null
Rear rotor
null
Drivetrain
Shift levers
SRAM AXS Pod Controller
Rear derailleur
SRAM GX Eagle Transmission, 12-speed
Cassette
SRAM GX Eagle Transmission XG-1275, 12-speed, 10-52T
Chain
SRAM GX Eagle Flattop, 12-speed
Crankset
SRAM GX Eagle DUB, 32T — 165mm (XS–SM), 170mm (MD–XL)
Bottom bracket
SRAM DUB (boost-compatible; exact shell standard not specified)
Cockpit
Stem
Phoenix Team Enduro/Trail V1 — 35mm (XS), 45mm (SM–XL)
Handlebars
Phoenix Ride Low Rise Aluminum — 780mm (XS–MD), 800mm (LG–XL)
Grips
Phoenix Factory Lock-On
Saddle
Phoenix/WTB Ride High Tail Trail (XS, SM) or Phoenix/WTB Ride Volt Medium Width (MD–XL)
Seatpost
TransX dropper (XS) / SDG Tellis dropper (SM–XL)
Wheels & Tires
Front wheel
DT Swiss M1900 wheelset w/ DT Swiss 370 hub, 30mm internal — 15x110 front (Mixed or 29in)
Rear wheel
DT Swiss M1900 wheelset w/ DT Swiss 370 hub, 30mm internal — 12x157 rear (Mixed or 29in)