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.
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Lightweight, Specialized engineered rigid fork, geo corrected to 80mm of travel makes fork upgrades easy.
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19mm OD handlebars, plus short reach brake levers and grips sized for smaller hands helps young riders stay in control.
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Specialized Kicker tires find grip anywhere, street, dirt, or at the skatepark.
Technical Specifications
Frameset
Frame
Specialized P.1, A1 Premium Alloy, 20", Fully Butted Tubing, Tapered Head Tube, BSA 73mm BB Shell, 12x148TA Sliding Dropouts, Single Speed or Geared Compatible, 52mm CL, Internal cable routing, 30.9 Seat Tube, Dropper Post Compatible
Seat Binder
Quick Release, 34.9mm ID Clamp
Suspension
Fork
Specialized A1 Alloy, 20" Rigid, Tapered Alloy Steer Tube, 15x110TA, 372mm Axle to Crown
Brakes
Front Brake
Radius CX7, Mechanical Disc, 160mm Rotor
Rear Brake
Radius CX7, Mechanical Disc, 160mm Rotor
Drivetrain
Cassette
13T SS Cog
Chain
KMC Z1, 1/2x3/32", Single Speed
Crankset
Specialized P.series, 52mm CL, 115mm Length
Chainrings
30T
Bottom Bracket
BSA 73mm
Wheels & Tires
Rims
Specialized P.Series, 20", 32h, 26mm ID, Disc Brake Only
Front Hub
Alloy, 6-Bolt, 28H, 15x110 Boost
Rear Hub
Alloy, 6-Bolt, 28H, 12x148 Boost, 11-speed compatiable
Spokes
Stainless, 14g
Front Tire
Specialzied Kicker Sport, 20x2.1"
Rear Tire
Specialzied Kicker Sport, 20x2.1"
Inner Tubes
20" Inner Tube, SV
Cockpit
Stem
3D-forged alloy, 31.8mm, 6-degree rise
Handlebars
Mini Rise, Alloy Double Butted, 6-degree Backsweep, 600mm Width, 31.8mm , 19mm Bar End Diameter
Grips
Specialized Trail Grips, 19mm bar end diameter, lock-on
Saddle
Specialized P.series, Steel Rails
SeatPost
Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm
Accessories
Pedals
Specialized Platform Pedal
Weight
Weight
9.37kg (20 lb, 10.5 oz)
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.