2026 Pivot Mach 4 SL Pro vs 2026 Specialized Epic 8 EVO
The S is the Specialized Epic 8 EVO size closest to your XS Pivot Mach 4 SL Pro. 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
Compared with the Pivot Mach 4 SL Pro in XS, the Specialized Epic 8 EVO 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 Pro, XSSpecialized Epic 8 EVO, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Pivot Mach 4 SL Pro XS | Specialized Epic 8 EVO 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 minus the Pivot Mach 4 SL Pro. Full charts: 2026 Pivot Mach 4 SL Pro, 2026 Specialized Epic 8 EVO.
Where each sits in its class
Pivot Mach 4 SL ProSpecialized Epic 8 EVO
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 ProPro | Specialized Epic 8 EVOS-Works EVO |
|---|---|---|
| Frame | Pivot Mach 4 SL | not listed |
| Fork | Fox 34 Factory | Fox SL Factory |
| Rear shock | Fox Float Factory | Fox FLOAT Factory |
| Shifter | SRAM Pod Controller | Shimano XTR Di2 |
| Derailleur | SRAM X0 Eagle AXS | Shimano XTR Di2 |
| Cassette | SRAM X0 Eagle Transmission | Shimano XTR |
| Chain | SRAM X0 Eagle Transmission | Shimano XTR |
| Crankset | SRAM X0 Eagle Transmission | Shimano XTR M9200 |
| Wheelset | DT Swiss XR 1700 | Roval Control SL VI |
| Tire | Maxxis Ardent Race | Specialized Purgatory, Specialized Ground Control |
| Brake | SRAM Level Stealth Silver | Shimano XTR M9220 |
| Handlebar | Phoenix Team Flat | Roval Control |
| Stem | Phoenix Team XC/Trail | Industry Nine A35 |
| Bottom bracket | not listed | Shimano MT801 |
| Seatpost | not listed | Fox Transfer Neo |
| Saddle | not listed | Specialized S-Works Power |
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