P. 20 Amateur
Part No.  

P. 20 Amateur

Part No.  
P. 20 Amateur
Technical Specifications
Start rolling right on a proper bike built for shredding with a strong Hi-Ten steel frame and fork and quality components.
  • P. Series tapered fork is strong enough to handle abuse
  • Big 8" x 28" handlebars make your set-up current and give you more leverage and control
  • One-piece saddle/post combo can take a serious beating and is the lightest set-up possible
  • 3-piece tubular Cr-Mo crankset with cartridge-bearing MID BB lets you boost as high as you like
  • Lightweight 36-hole wheels with low flange 3/8" axle front hub and rear 14mm cassette with 9t driver
  • High volume and impact-absorbing Specialized Rhythm Lite 2.2" tires give you the versatility to ride dirt or street
  • Lightweight plastic platform pedals take mercy on your shins, but remain strong enough to handle even the harshest landing
  • Hi Ten frame with 20.6" top tube has an integrated headset, MID BB, small dropouts, and dialed geos for dirt, park, or street

Technical Specifications

CHAIN KMC Z-510H, 1/2"" x 1/8"", anti-drop inner links
BOTTOM BRACKET Mid BB, 2x sealed cartridge bearing w/ 19mm 8 spline Cr-Mo BB spindle, steel tube and plastic cone spacers
FREEWHEEL 1/2"" x 1/8"" x 9t
CRANKSET 3pc. tubular Cr-Mo for 8 spline, 170mm length
CHAINRINGS Stamped steel, 25t
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
INNER TUBES Schraeder valve
SPOKES 2mm (14g) stainless
RIMS Alex, alloy single wall, pinned, 36h
FRONT TIRE Specialized Rhythm Lite Sport, 20 x 2.2"", 30TPI, wire bead
REAR TIRE Specialized Rhythm Lite Sport, 20 x 2.2"", 30TPI, wire bead
SADDLE P. Combo, 1pc co-molded composite saddle and alloy seat post combination
SEATPOST Alloy, no offset, 25.4mm
STEM Forged alloy front load drop type, 50mm extension, 1 1/8"" A-Head
HANDLEBARS Cr-Mo 2pc., 8"" x 28"", 11 degree back sweep, 2 degree up
GRIPS P. Grip BMX soft compound, closed end, flanged, 150mm
BRAKE LEVERS Lever ""U"" brake, 15mm cable pull
REAR BRAKE Tektro FX-340 U-brake, melt forged, single bushing, coil spring, 15mm offset arms, soft compound pads
PEDALS P. Lo-Pro plastic platform, loose ball, 9/16""
HEADSET Integrated FSA Impact, 1-1/8"" threadless, Campy type cartridge bearings
SEAT BINDER Cr-Mo seat pin, allen key type
FORK Hi Ten, Taper blades, 1-1/8"" threadless, 5mm dropouts for 3/8"" axle
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


Geometry Chart

- Geometry

Top Tube Length (Actual) 522mm
Top Tube Length (Horizontal) 550mm
Seatpost Length 0mm
Seat Tube Length, Center to Top 235mm
Wheel Base 921mm
Bottom Bracket Drop -35.7mm
Chainstay Length 352mm
Bottom Bracket Height 294mm
Seat Tube Angle 72°
Rake 31mm
Head Tube Angle 75°
Head Tube Length 110mm