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Specialized P.4

Specialized P.4
  • Color: Satin Aluminum/ Black
  • Color: Satin Red Tint Diffused/Fiery Red/White
Size: 27.5-inch
Please select options Unavailable
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Ruthless Progression

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.

Starting with the durable lightweight alloy frame, the new P.Series stands up to the demands of dirt jump progression. Its cables are internally routed, adding to its sleek presence and tangle-free riding.

• 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.

Chain-Stay Length (mm) 385
Wheelbase (mm) 1094
Top-Tube Length (horizontal) (mm) 636
Bike Stand-Over Height (mm) 353
Seat-Tube Length (mm) 350
Seat-Tube Angle (°) 72
Fork Rake/Offset (mm) 37
Front-Center (mm) 711
Wheel Size (inch) 27.5
Stack (mm) 588
Reach (mm) 445
Head-Tube Length (mm) 120
Head-Tube Angle (°) 68.5
B-B Height (mm) 318
B-B Drop (mm) 34
Trail (mm) 91
Fork Length (full) (mm) 492
Crank Length (mm) 165
Handlebar Width (mm) 750
Stem Length (mm) 35
Saddle Width (mm) 110
Seatpost Length (mm) 200


Frame Specialized P.4, A1 Premium Alloy, 27.5", 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, 26" Wheel Compatible
Fork Marzocchi Bomber Z1, 27.5", 100mm Travel, Grip Damper, 1.5 Tapered Steerer, 15x110 Boost, 44mm Offset
Rims Specialized P.Series, 27.5", 32h, 26mm ID, Disc Brake Only
Hubs Front: Alloy, sealed cartridge bearings, 15x110mm thru-axle, 6-bolt, 32h
Rear: Alloy, Single Speed, sealed cartridge bearings, 12x148mm thru-axle, 6-bolt, 32h
Spokes Stainless, 14g
Tires Specialzied Kicker Sport, 27.5x2.1"
Bottom Bracket BSA 73mm
Crankset Specialized P.series, Forged, 24mm Spindle, 52mm CL, 165mm Length
Chainrings 30T
Cassette/Freewheel 13T SS Cog
Chain KMC Z1, 1/2x3/32", Single Speed
Brakes Front: Radius CX7, Mechanical Disc, 180mm Rotor
Rear: Sram Level T, Hydraulic Disc, 160mm Rotor
Handlebars Specialized P.Series MTB Dirt, 6061 alloy, 9-degree backsweep, 6-degree upsweep, 38mm rise, 750mm width, 31.8mm clamp
Tape/Grips Specialized Trail Grips, lock-on
Stem Specialized Alloy Trail Stem
Seatpost Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm
Saddle Specialized P.series, Steel Rails
Pedals Specialized Platform Pedal

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Satin Aluminum/ Black / 27.5-inch 888818862795 91923-5127 210000240556
Satin Red Tint Diffused/Fiery Red/White / 27.5-inch 888818862818 91923-5027 210000240578