Specialized P.1 Mountain Dirt Jump Bike
P.1
$499.99$649.99
In stock for store pickup or ship to home.Hurry! Low inventoryItem is out of stock
Item is unavailable
Buy It With
$79.99
Ride it Risk-Free for 30 Days!
Every bike comes with our 30-Day Ride Guarantee. Take it home, ride it like you own it. If it’s not right, bring it back within 30 days & we’ll refund your purchase or help you find the right bike.
Normal wear and tear is expected—because the only way to know it’s the right ride is to ride it.
-
Specialized P.1 Dirt Jump Mountain Bike: Confidence-Building Progression for Smaller Riders
The Specialized P.1 Dirt Jump Mountain Bike is designed specifically for younger and smaller riders who want a real dirt jump bike that helps them build skills with confidence. Built with the same tough DNA as the rest of the P.Series lineup, the P.1 delivers durability, control, and simplicity in a compact 20-inch platform that’s perfect for pump tracks, skateparks, and dirt jump lines.
Key Benefits for Riders
Scaled Design for Better Control
The A1 Premium Alloy frame is purpose-built around 20-inch wheels, creating stable, predictable handling without feeling oversized or intimidating. Smaller-diameter grips, short-reach brake levers, and youth-appropriate contact points help riders stay comfortable and in control as they develop balance, timing, and technique.
Low-Maintenance, Upgrade-Ready Fork
A Specialized A1 alloy rigid fork keeps weight low and durability high, making it ideal for learning riders. The fork is geometry-corrected to match the feel of an 80mm suspension fork, allowing for an easy upgrade as skills and riding demands increase.
Simple and Reliable Single-Speed Drivetrain
The single-speed drivetrain eliminates unnecessary complexity, keeping the bike quiet, reliable, and easy to maintain. A durable Specialized crankset paired with a 30T chainring and KMC chain delivers consistent power transfer so riders can focus on progression instead of shifting.
Why Choose the Specialized P.1?
If you’re looking for a true dirt jump bike that’s scaled properly for smaller riders without sacrificing durability or performance, the Specialized P.1 is the ideal foundation for learning, progression, and fun.
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 Fork:
Specialized A1 Alloy, 20" Rigid, Tapered Alloy Steer Tube, 15x110TA, 372mm Axle to Crown Bottom Bracket:
BSA 73mm Cassette:
13T SS Cog Chain:
KMC Z1, 1/2x3/32", Single Speed Front Brake:
Tektro HD-J285, Hydraulic Disc, 160mm Rotor Rear Brake:
Tektro HD-J285, Hydraulic Disc, 160mm Rotor Front Hub:
Alloy, 6-Bolt, 28H, 15x110 Boost Rear Hub:
Alloy, 6-Bolt, 28H, 12x148 Boost, 11-speed compatiable Rims:
Specialized P.Series, 20", 32h, 26mm ID, Disc Brake Only Front Tire:
Specialzied Kicker Sport, 20x2.1" Rear Tire:
Specialzied Kicker Sport, 20x2.1" Handlebars:
Mini Rise, Alloy Double Butted, 6-degree Backsweep, 600mm Width, 31.8mm , 19mm Bar End Diameter Stem:
3D-forged alloy, 31.8mm, 6-degree rise Seat Post:
Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm Saddle:
Specialized P.series, Steel Rails Pedals:
Specialized Platform Pedal Grips:
Specialized Trail Grips, 19mm bar end diameter, lock-on Bike Weight:
20 lb, 10.5 oz 
What We Do:
Full Professional Assembly
Our certified mechanics put together every component—down to the tiniest bolt—ensuring your bike meets the highest standards of safety and performance.
Precise Tuning & Adjustment
Once built, we tune gears, adjust brakes, true the wheels, and dial in every detail to guarantee a smooth, flawless ride from day one.
Careful Repackaging
After your bike passes inspection, we carefully repackage it with easy-to-follow instructions. The result? A simple, stress-free assembly process in the comfort of your home.
Why It Matters:
By taking the time to ensure every aspect of your bike is perfect, we’re giving you more than just a product—we’re offering peace of mind. You’ll hit the road or trail knowing that your bike has been fine-tuned by professionals who care about quality as much as you do.
Processing Time & Shipping:
Since we treat each bike with personalized attention, please allow 2–3 business days for this service before your order ships. If you need expedited processing, simply reach out to us at info@peachtreebikes.com — we’ll do our best to accommodate your timeline.