Pivot
Firebird MX Pro XT Di2 MX
Gallery
Images
detail
Geometry
Geometry
>
Geometry
Geometry
Frame geometry
| Geometry | LG | MD | SM | XL | XS |
|---|---|---|---|---|---|
| Stack | 64.6mm | 63.7mm | 62.5mm | 65.5mm | 61.5mm |
| Reach | 48mm | 46.3mm | 44mm | 50mm | 41mm |
| Headtube length | 11.8mm | 10.8mm | 9.5mm | 12.8mm | 8.5mm |
| Headtube angle | 63.4deg | 63.4deg | 63.4deg | 63.4deg | 63.8deg |
| BB height | 34.4mm | 34.4mm | 34.4mm | 34.4mm | 34.7mm |
| BB drop | 1.3mm | 1.3mm | 1.3mm | 1.3mm | 1mm |
| Trail | — | — | — | — | — |
| Fork length | — | — | — | — | — |
| Fork offset | — | — | — | — | — |
| Front center | — | — | — | — | — |
| Chainstay length | — | — | — | — | — |
| Wheelbase | — | — | — | — | — |
| Top tube | 63.5mm | 62.2mm | 59.6mm | 65.7mm | 55.8mm |
| Standover height | 70.8mm | 68.7mm | 68.2mm | 71.2mm | 67.8mm |
| Seat tube length | 44mm | 41.5mm | 38.5mm | 47.5mm | 36.5mm |
| Seat tube angle | 77deg | 77deg | 77deg | 77deg | 77.6deg |
Spec geometry
| Geometry | LG | MD | SM | XL | XS |
|---|---|---|---|---|---|
| Crank length | 170mm | 170mm | 170mm | 170mm | 170mm |
| Stem length | 40mm | 40mm | 40mm | 50mm | 32mm |
| Handlebar width | 780mm | 780mm | 780mm | 780mm | 760mm |
| Handlebar reach | — | — | — | — | — |
| Handlebar drop | — | — | — | — | — |
| Saddle width | — | — | — | — | — |
| Dropper post travel | — | — | — | — | — |
| Seatpost offset | — | — | — | — | — |
Specs
Full specs
>
Specs
Full specs
Frame
Frame
null
Suspension
Rear shock
2026 Fox Factory Float X2
Fork
Fox Factory 38 29", 44mm offset, GRIP X2 — 170mm
Brakes
Front brake
Shimano XT M8220, 4-piston hydraulic disc
Rear brake
Shimano XT M8220, 4-piston hydraulic disc
Front rotor
null
Rear rotor
null
Drivetrain
Shift levers
Shimano XT Di2 M8200 ISPEC EV, 12-speed
Rear derailleur
Shimano XT Di2 M8200 SGS, 12-speed
Cassette
Shimano XT M8200, 12-speed, 10-51T
Chain
Shimano CN-M8100, 12-speed
Crankset
Race Face Æffect R, 32T — 170mm
Bottom bracket
null
Cockpit
Stem
Phoenix Team Enduro V2 — 32mm (XS), 40mm (SM-LG), 50mm (XL)
Handlebars
Phoenix Team Carbon — 20mm rise 760mm (XS), 20mm rise 780mm (SM), 35mm rise 780mm (MD-XL)
Grips
Phoenix Factory Lock-On
Saddle
Phoenix WTB Pro High Tail Trail (XS, SM) / Phoenix WTB Pro Volt (Medium Width) (MD-XL)
Seatpost
Fox Factory Transfer dropper
Wheels & Tires
Front wheel
DT Swiss XM1700 wheelset, 30mm internal — 15x110 (Front) — Mixed or 29"
Rear wheel
DT Swiss XM1700 wheelset, 30mm internal — 12x157 (Rear) — Mixed or 29"