2026 Specialized Bicycles p4 Base
- Category
- BMX/Dirt Jump
- Design
- Moto/Klunker/Riser Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 100mm fork travel
- Features
- Disc brake
Geometry
p4 | |
Stack | 588mm |
Reach | 445mm |
Stack to Reach Ratio | 1.32:1 |
Seat Tube Length, C-T | 350mm |
Top Tube Length, Effective/Horizontal Center | 636mm |
Top Tube Slope | 24.8deg |
Head Tube Angle | 68.5deg |
Seat Tube Angle | 72deg |
Head Tube Length | 120mm |
Bottom Bracket Drop | 34mm |
Bottom Bracket Height | 311.3mm |
Chainstay Length | 385mm |
Chainstay Length Horizontal | 383.5mm |
Front-Center | 711mm |
Front-Center Horizontal | 710.5mm |
Wheelbase | 1094mm |
Fork Offset/Rake | 44mm |
Fork Length, Unknown | 492mm |
Trail | 88.8mm very high |
Mechanical Trail | 82.6mm |
Wheel Flop | 30.3mm |
Standover Height | 697mm |
Tire to Pedal Spindle | 195.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 141.3mm 170 mm cranks |
Base Build
p4 | |
Wheel Size | 650B/27.5 in 584 mm BSD |
Tire Width | 2.1in |
Tire Outer Diameter | 690.7mm |
Bike Length with Tires | 1784.7mm |
Handlebar Width | 750mm |
Stem Length | 35mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
BMX/Dirt JumpSource:www.specialized.com