If you've been searching for a proper dirt jumper that doesn't make compromises, the Specialized P.1 20in Dirt Jump Bike is worth your full attention.
Rusted Red Overspray finish aside, this is a bike built from the ground up for one thing: sending it, repeatedly, without falling apart.
Specialized completely redesigned the P.Series for this generation, and the result is one of the most considered dirt jump platforms available in the UK right now.
Built to take a beating
The alloy frame is light enough to throw around and tough enough to survive the learning curve. And if you're getting into dirt jumping, there is a learning curve. The bike will hit the ground. Specialized knows that, and they've built accordingly.
No fussy cables, no unnecessary electronics, no components that'll snap when things go sideways. The Specialized P.1 keeps it stripped back deliberately, so the only variable you're managing is your own progression.
Sized properly, finally
For years, getting into dirt jumping in the UK meant accepting whatever limited sizes were available. The new P.Series changes that.
The Specialized P.1 20in sits at the smaller end of the range, making it a legit dirt jumper for younger riders or anyone who rides better on a snappier, more responsive setup.
More capable than it looks
- Dropper post ready, derailleur compatible, and fitted with adjustable dropouts, so you can run it as a pure dirt jumper or make it trail-worthy for getting to the spot
- Boost-spaced rear end adds stiffness where it counts
- Tapered headtube and threaded bottom bracket mean it's solid and straightforward to maintain
- Geo-corrected rigid fork accepts up to 80mm travel upgrades without messing with your handling
- 19mm OD bars, short-reach brake levers, and smaller grips, all proportioned for control rather than just scaled down
On the ground
Specialized's own Kicker 2.1" tyres handle street, dirt, and skatepark surfaces without complaint, and the frame clears up to a 2.35" trail tyre if you want a bit more cushion for longer rides out to the jumps.
For a dedicated specialized dirt jumper at this price point, with this level of thoughtful spec, the P.1 is genuinely hard to fault. Whether you're buying for a rider just getting started on the jumps or looking for a UK-available dirt jump bike with room to grow, this one ticks the boxes that actually matter.