Bike details
Overview
Key information split into simple groups.
Bike summary
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Frame Steel -
Wheels 20" -
Suspension Rigid -
Brakes Mechanical Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Hi-Ten 20"" frame, 20.5"" TT, MID BB shell, externally relieved integrated HT, formed monostay yoke, seat-stay mounted U-brake bosses, 5mm dropouts for 14mm axle
Suspension Fork
Hi Ten, Taper blades, 1-1/8"" threadless, 5mm dropouts for 3/8"" axle
Drivetrain
Cassette
1/2"" x 1/8"" x 9t
Crank
3pc. tubular Cr-Mo for 8 spline, 170mm length
Bottom Bracket
Mid BB, 2x sealed cartridge bearing w/ 19mm 8 spline Cr-Mo BB spindle, steel tube and plastic cone spacers
Chain
KMC Z-510H, 1/2"" x 1/8"", anti-drop inner links
Pedals
P. Lo-Pro plastic platform, loose ball, 9/16""
Wheels
Front Hub
Forged alloy low flange, Cr-Mo 3/8"" axle, loose ball, 36h
Rear Hub
Forged alloy cassette, 14mm axle, loose ball, 36h, 9t driver
Rims
Alex, alloy single wall, pinned, 36h
Spokes
2mm (14g) stainless
Tires
Specialized Rhythm Lite Sport, 20 x 2.2"", 30TPI, wire bead
Brakes
Brakes
Tektro FX-340 U-brake, melt forged, single bushing, coil spring, 15mm offset arms, soft compound pads
Brake Levers
Lever ""U"" brake, 15mm cable pull
Cockpit
Stem
Forged alloy front load drop type, 50mm extension, 1 1/8"" A-Head
Handlebar
Cr-Mo 2pc. 8"" x 28"", 11 degree back sweep, 2 degree up
Grips
P. Grip BMX soft compound, closed end, flanged, 150mm
Headset
Integrated FSA Impact, 1-1/8"" threadless, Campy type cartridge bearings
Seat
Saddle
P. Combo, 1pc co-molded composite saddle and alloy seat post combination
Seatpost
Alloy, no offset, 25.4mm
Fit data
Geometry
Numbers for sizing and ride feel.
About this model
P. 20 Amateur is a Specialized P model. Specialized launched 1 bike of this model so far.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Average price for Dirt Jump bikes
If you want to purchase a solid Dirt Jump bike, it is important to know that the average cost is 863$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Dirt Jump bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Overview of components
Fork material
The fork is made out of steel, so, it can add some extra weight to your bike. However, steel is a pretty tough and durable material.
Wheels
The wheels on P. 20 Amateur are the 20″ aluminum type. The 20″ wheels are a good fit for folding bikes, BMX, or children bikes. In conclusion, they are great for flat ground or very easy trails.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The P. 20 Amateur comes with Mechanical Disc brakes. They deliver good performance and cost less than hydraulic disk brakes. However, with hydraulic disk brakes, you have the ultimate braking power!