2026 Pivot Mach 4 SL Team Flight Attendant vs 2026 Specialized Epic 8 EVO Pro
The S is the Specialized Epic 8 EVO Pro size closest to your XS Pivot Mach 4 SL Team Flight Attendant. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Epic 8 EVO Pro
Compared with the Pivot Mach 4 SL Team Flight Attendant in XS, the Specialized Epic 8 EVO Pro in S places the top of the head tube 17 mm higher and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 20 mm longer, which can contribute to stability at speed.
- Frame stack
- +17 mm
- Higher front end
- Frame reach
- +5 mm
- Longer frame reach
- Wheelbase
- +20 mm
- Longer: steadier at speed
- Head angle
- −0.1°
- About the same head angle
- Chainstays
- +3 mm
- Longer: more planted
The two frames
Pivot Mach 4 SL Team Flight Attendant, XSSpecialized Epic 8 EVO Pro, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Pivot Mach 4 SL Team Flight Attendant XS | Specialized Epic 8 EVO Pro S | Difference |
|---|---|---|---|
| Reach | 410 | 415mm | +5 mm |
| Stack | 583 | 600mm | +17 mm |
| Head tube angle | 66 | 65.9° | −0.1° |
| Seat tube angle | 75 | 75.5° | +0.5° |
| Effective top tube | 574 | not listed | |
| Chainstay length | 432 | 435mm | +3 mm |
| Wheelbase | 1131 | 1151mm | +20 mm |
| BB drop | 38 | 43mm | +5 mm |
| BB height | 336 | 327mm | −9 mm |
| Standover | 641 | 761mm | +120 mm |
| Seat tube length | 355 | 390mm | +35 mm |
| Head tube length | 85 | 92mm | +7 mm |
| Fork length | not listed | 540mm |
Differences are the Specialized Epic 8 EVO Pro minus the Pivot Mach 4 SL Team Flight Attendant. Full charts: 2026 Pivot Mach 4 SL Team Flight Attendant, 2026 Specialized Epic 8 EVO Pro.
Where each sits in its class
Pivot Mach 4 SL Team Flight AttendantSpecialized Epic 8 EVO Pro
Each bike is ranked against the other XC bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Pivot Mach 4 SL Team Flight Attendant | Specialized Epic 8 EVO ProEVO Pro |
|---|---|---|
| Fork | not listed | Fox SL Factory |
| Rear shock | not listed | Fox FLOAT Factory |
| Shifter | not listed | SRAM Pod Controller |
| Derailleur | not listed | SRAM X0 Eagle Transmission |
| Cassette | not listed | SRAM X0 Eagle Transmission |
| Chain | not listed | SRAM X0 Eagle |
| Crankset | not listed | SRAM X0 Eagle |
| Bottom bracket | not listed | SRAM DUB |
| Wheelset | not listed | Roval Control |
| Tire | not listed | Specialized Purgatory, Specialized Ground Control |
| Brake | not listed | SRAM Motive |
| Handlebar | not listed | Roval Control |
| Stem | not listed | Race Face Turbine |
| Seatpost | not listed | Specialized Fox Transfer Factory |
| Saddle | not listed | Specialized Power Expert |
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