P.4
P.4
P Series Size Guide
Product Details
This totally redesigned P.Series gives riders of all sizes a jumping off point to a life on bikes. The lightweight, but tough alloy frame is designed to take all the hits and keep rolling—across all frame and wheel size options. Our approach to these robust bikes centers around delivering a simple, high-quality platform that's versatile for all riders, and packs in category-first features that make a difference to the rider. SLEEK SIMPLICITY — The latest and greatest levers, adjustment switches, and complex cabling have their place—but not here. For the rider focusing on progression, eliminating every other variable is paramount. Starting with the durable lightweight alloy frame, P.Series stands up to unique demands of a bike that only dirt jump riders know. It’s going to hit the ground. A lot. SIZED FOR ALL — In such a niche corner of the cycling world, a purpose-built bike like the P.Series used to be available in minimal size options. That’s why we took a step back to design a new range of inclusive sizes. From a 20-inch tire legit dirt jumper to a 27.5-inch category-crossing trail cruiser that can be backflipped. REIMAGINE YOUR RIDE — Instead of compromising on its heart and soul (flipping and whipping through the air), we expanded its capability. It’s dropper ready, derailleur compatible, and uses adjustable dropouts. You can ride it out your door all the way to the bike park—and make a pitstop to session along the way. TOUGH TECH — Built with a boost spaced rear end for added stiffness, this burly wheel setup along with tapered headtube, and threaded bottom-bracket make P.Series extremely resilient and easy to maintain. Wrapped in its new 2.1” Kicker tire—but accepting up to a 2.35” trail tire—you’ll find grip and make speed anywhere. Marzocchi Bomber, high performance and tunable.
Lightweight and strong single-speed P.Series wheelset.
Specialized Kicker tires find grip anywhere, street, dirt, or at the skatepark.
Technical Specifications
Frameset
Frame
Specialized A1 Premium Aluminum, 26/27.5" compatible, fully butted tubing, tapered head tube, BSA threaded 73mm BB shell, 12x148 thru-axle sliding dropouts, Single speed or geared compatibile, internal cable routing, 30.9mm seat tube, dropper post compatible
Seat Binder
Alloy, single-bolt, 34.9mm
Suspension
Fork
2025, Bomber Z1, 27.5in, Marzocchi, 100, RAIL, Sweep-Adj, Matte Blk, Neutral/Matte Blk Logo, Kabolt 110, BLK, 1.5 T, 58HT, 44mm Rake, N/M OE
Cockpit
Seat Post
Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm
Saddle
Soder Dirt, steel rails
Stem
Specialized Alloy Trail Stem
Grips
Specialized Trail Grips, lock-on
Handlebars
Specialized P.Series MTB Dirt, 6061 alloy, 9-degree backsweep, 6-degree upsweep, 38mm rise, 750mm width, 31.8mm clamp
Brakes
Front Brake
Tektro, mechanical disc, resin pads, 160mm
Rear Brake
SRAM Level T hydraulic disc, 2-Piston Caliper
Drivetrain
Cassette
17T, INCLUDED WITH REAR HUB
Crankset
Specialized P.series, Forged, 24mm Spindle, 52mm CL, 165mm Length
KMC Z610, single speed, 1/2x3/32"
KMC Z610, single speed, 1/2x3/32"
Bottom Bracket
73mm,W/ Ø24MM SPINDLE
Chain Ring
34T
Wheels & Tyres
Front Hub
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
Rear hub
Bear Pawl, 6-bolt, 12x148TA, 32h, Single Speed
Rims
P.Series, 32 Hole, 26mm ID, Disc Brake Only
Specialized Kicker Control T5, 27.5x2.1"
Specialized Kicker Control T5, 27.5x2.1"
Specialized Kicker Control T5, 27.5x2.1"
Specialized Kicker Control T5, 27.5x2.1"
Spokes
Stainless, 14g
Tubes
Schrader, 40mm valve
Accessories
Pedals
Specialized Body Geometry Fitness, Platform, Plastic