Specialized P.Series P.1 Dirt Jump Bike - 20in - Gloss Deep Marine/Purple Haze
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Product Information
Full details
The Specialized P.Series P.1 is a purpose-built dirt jump bike designed for riders focused on progression and durability in the skatepark or on local jumps. Its lightweight, high-strength alloy frame offers a nimble yet robust platform that stands up to heavy impacts while providing the versatility to adapt to different riding styles. While it comes with a rigid setup to maximize stiffness and simplicity, users should note that adding a suspension fork is a separate upgrade project, and the 20-inch wheel size is optimized specifically for technical maneuvering rather than long-distance trail riding.
All features
| Model Part Number | 91923-8120 |
|---|---|
| Brand | Specialized |
Extended Product Information
FAQs
Can I install a suspension fork on this bike?
Yes, the P.Series P.1 is designed with a tapered headtube to accommodate a wide variety of aftermarket suspension forks.
Is this bike suitable for long-distance mountain biking?
No, this bike is specifically engineered for dirt jumping and park riding; its geometry and 20-inch wheels are not optimized for long-distance pedaling or cross-country trails.
Can I add gears to the P.1?
Yes, the frame is compatible with derailleur setups, allowing you to add a rear shifting system if your riding needs change.
What is the primary benefit of the threaded bottom bracket?
The threaded bottom bracket offers superior durability, easier maintenance, and is less prone to the creaking issues often found in press-fit systems.
Are the tires included good for all surfaces?
The 2.1-inch Kicker tires are versatile and provide reliable grip on street, dirt, and skatepark surfaces.
Troubleshooting
Chain tension is too loose or slipping
Adjust the rear dropouts to pull the wheel back slightly and re-tighten the axle nuts securely.
Creaking sound from the bottom bracket area
Verify that the threaded bottom bracket is torqued to manufacturer specifications and apply a light layer of waterproof grease to the threads.
Front end feels imprecise during jumps
Ensure the headset bearings are properly seated in the tapered headtube and check that the stem bolts are tightened to the recommended torque settings.
Pros and Cons
Pros
- Exceptionally durable and lightweight alloy frame
- High level of component compatibility for future upgrades
- Adjustable dropouts allow for varied gear setups
- Simple, low-maintenance design ideal for intensive training
Cons
- Rigid fork setup may feel harsh for beginners on very rough landings
- 20-inch wheels are specialized for stunts and not efficient for commuting
- Requires mechanical knowledge for significant upgrades like derailleurs
Setup, Compatibility & Care
To ensure the P.Series P.1 remains in top condition, perform regular safety checks on the headtube and bottom bracket, given their critical role in frame stiffness. When adjusting the dropouts, ensure the axle is seated properly to maintain wheel alignment and chain tension.
- Maintenance: Keep the drivetrain clean and lubricated. Periodically check for any frame cracks after heavy impact sessions.
- Upgrades: If adding a suspension fork, ensure the fork is compatible with the tapered headtube standard.
- Tire Pressure: Adjust tire pressure based on surface conditions; higher pressure is typically preferred for smooth skatepark floors, while lower pressure can provide more grip on loose dirt.