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2011 Specialized

P. 20 Amateur

A 20″ steel frame rigid dirt jump bike with mid-range components.
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FrameSteel
SuspensionRigid
ForkSteel
Wheels20″ Aluminum
Groupset
BrakesTektro Hydraulic Disc
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Insights
Sizing
20.5"

3'11" +

🐐 Estimated

Rider Fit Notes

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Geometry
Specs
Build
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

Fork

Hi Ten, Taper blades, 1-1/8"" threadless, 5mm dropouts for 3/8"" axle

Bottom Bracket

Mid BB, 2x sealed cartridge bearing w/ 19mm 8 spline Cr-Mo BB spindle, steel tube and plastic cone spacers

Headset

Integrated FSA Impact, 1-1/8"" threadless, Campy type cartridge bearings

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

Saddle

P. Combo, 1pc co-molded composite saddle and alloy seat post combination

Seatpost

Alloy, no offset, 25.4mm

TypeRigid

Pedals

P. Lo-Pro plastic platform, loose ball, 9/16""

Grips

P. Grip BMX soft compound, closed end, flanged, 150mm

Groupset
Crank

3pc. tubular Cr-Mo for 8 spline, 170mm length

Cassette

1/2"" x 1/8"" x 9t

Chain

KMC Z-510H, 1/2"" x 1/8"", anti-drop inner links

Brakes

Tektro FX-340 U-brake, melt forged, single bushing, coil spring, 15mm offset arms, soft compound pads

TypeTektro Hydraulic Disc

Brake Levers

Lever ""U"" brake, 15mm cable pull

Wheels
Rims

Alex, alloy single wall, pinned, 36h

Spokes

2mm (14g) stainless

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

Tires

Front: Specialized Rhythm Lite Sport, 20 x 2.2"", 30TPI, wire bead, Rear: Specialized Rhythm Lite Sport, 20 x 2.2"", 30TPI, wire bead

Rider Notes
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First added July 9

Last updated July 9

Not listed for 2,521 days