2023 Specialized P.3 vs 2025 Specialized P.4
The 27.5" is the Specialized P.4 size closest to your 26" Specialized P.3. 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 P.4
Compared with the Specialized P.3 in 26", the Specialized P.4 in 27.5" places the top of the head tube 25 mm higher and 30 mm further forward, relative to the bottom bracket. Its wheelbase is 42 mm longer, which can contribute to stability at speed.
- Frame stack
- +25 mm
- Higher front end
- Frame reach
- +30 mm
- Longer frame reach
- Wheelbase
- +42 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized P.3, 26"Specialized P.4, 27.5"Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized P.3 26" | Specialized P.4 27.5" | Difference |
|---|---|---|---|
| Reach | 415mm | 445mm | +30 mm |
| Stack | 563mm | 588mm | +25 mm |
| Head tube angle | 68.5° | 68.5° | ±0.0° |
| Seat tube angle | 72° | 72° | ±0.0° |
| Chainstay length | 385mm | 385mm | ±0 mm |
| Wheelbase | 1052mm | 1094mm | +42 mm |
| Standover | 691mm | 697mm | +6 mm |
| Seat tube length | 335mm | 350mm | +15 mm |
| Fork length | 480mm | 492mm | +12 mm |
| Head tube length | 115mm | 120mm | +5 mm |
| Effective top tube | not listed | 636mm | |
| BB drop | not listed | 34mm | |
| BB height | not listed | 318mm |
Differences are the Specialized P.4 minus the Specialized P.3. Full charts: 2023 Specialized P.3, 2025 Specialized P.4.
Where each sits in its class
Specialized P.3Specialized P.4
Each bike is ranked against the other dirt jump 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 | Specialized P.3P.3 | Specialized P.4P.4 |
|---|---|---|
| Frame | Specialized P.3 | not listed |
| Fork | Marzocchi Bomber DJ | not listed |
| Chain | KMC Z1 | KMC Z610 |
| Crankset | Specialized P.series | Specialized P.series |
| Tire | Specialized Kicker Sport | Specialized Kicker Sport |
| Rim | Specialized P.Series | Specialized P.Series |
| Brake | Specialized Radius CX7, SRAM T | SRAM Level T |
| Handlebar | Specialized P.Series | Specialized P.Series |
| Saddle | Specialized P.Series | Specialized Soder |
Know what is on every bike.
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