Specialized

MY23 P.4 Dirt Jump Bike

We take extra care to ensure your bike arrives ready to ride. Our meticulous build and testing process takes about 4 business days before your bike is ready to ship.
This attention to detail guarantees that your bike will be easy to assemble on arrival. Please note that most bikes do not come with pedals. To make the most of your new bike right away, be sure to select a pair of pedals when checking out and we will include them with the build!From first jumps to seasoned sends, the redesigned Specialized P.Series delivers a versatile, durable, and confidence-inspiring ride for dirt jumpers and street riders of all sizes. Available in a full size range - from compact 20-inch builds to larger 27.5-inch setups - the P.Series is engineered for riders looking to build skills, boost off features, and have fun doing it. With clean lines, a tough aluminum frame, and category-first versatility, it's a bike built for the hits and made to grow with your riding.

Dialed Dirt Jump Geometry Across All Sizes
From kids to adults, every frame size is purpose-built for balance, control, and confidence. Whether it''s a 20", 24", 26", or 27.5" build, the geometry is designed to feel right in the air and stable on the ground.

Lightweight Yet Tough Alloy Frame Handles Heavy Hits
Durable aluminum frame stands up to repeated landings and hard riding, while staying light and responsive for manualing, bunny-hopping, and tricking through tight lines.

Dropper-Ready and Derailleur-Compatible for Expanded Capability
Want to ride to the spot or shred beyond the park? The new frame design includes internal dropper routing, derailleur compatibility, and adjustable dropouts for geared or single-speed builds.

Boost Rear Spacing and Tapered Headtube for Strength and Serviceability
Modern features like a 148mm Boost rear end, tapered headtube, and threaded bottom bracket make the P.Series ultra-rigid and easy to maintain - even after seasons of heavy use.

Specialized Kicker Tires Deliver All-Surface Grip
Stocked with 2.1" Specialized Kicker tires for dirt, street, or park. Frame clearance allows for up to a 2.35" trail tire for added grip when needed.

Built to Progress, Sized to Fit
Unlike older dirt jumpers that came in just one size, the P.Series lineup covers a full range - so every rider gets the right fit and the right feel, right out of the box.

• Lightweight and durable aluminum frame designed to handle big hits and hard landings
• Available in multiple wheel sizes including 20, 24, 26, and 27.5 inch for riders of all sizes and skill levels
• Boost 148 rear spacing increases wheel stiffness and improves handling under load
• Adjustable dropouts support both single-speed and geared drivetrains
• Internal dropper post routing and derailleur hanger offer added versatility
• Tapered head tube and threaded bottom bracket improve frame strength and simplify maintenance
• Marzocchi Bomber suspension fork delivers responsive and tunable performance for jump and trail riding
• Specialized Kicker 2.1 inch tires provide grip and control across dirt, pavement, and park features
• Clearance for up to 2.35 inch trail tires for added traction and cushioning

WARNING: Cycling involves risks. To ensure your safety, have your bike and its accessories assembled and serviced by a professional mechanic. Do not alter your bicycle or its components. Always adhere to the instructions and warnings provided, including those found on the manufacturer’s website. Inspect your bicycle thoroughly before each ride and always wear a helmet.