VelopediaBicycle Archive ยท Specification report

2015 Specialized P.20 Grom

Velopedia Archive ID 1283827

Overview

Model year2015
BrandSpecialized
ModelP.20 GROM
Bicycle typeBMX
Archive ID1283827
Original MSRP$320.00
ColorsGloss Black/Red/White, Gloss Red/White/Black
Sizes20.5 TT

Frameset

Frame constructionHi-Ten steel, seatstay-mounted U-brake bosses, 5mm dropouts for 14mm axle
Frame materialHigh tensile steel
ForkHi-Ten steel, 1-1/8" threadless steerer, 3/8" axle dropouts
Fork materialHigh tensile Steel

Drivetrain

Component groupBMX mix
CranksetP.Crank, 3 pc. BMX style, 8-spline, 152mm, 30T, 1/2" x 1/8"
Bottom bracket8-spline, loose ball bearing
Rear cogsOdyssey, 13T
ChainKMC HV410, 1/2" x 1/8"
PedalsComposite platform, ball bearings, 9/16"

Brakes

BrakesTektro XL-320, U-brake, 15mm cable pull, Tektro, U-brake, alloy adjuster housing, 60mm 1 pc. pads, 95mm arms

Cockpit & contact points

HeadsetAhead, 1/8" sealed cartridge bearings
HandlebarSpecialized P.Series BMX, steel, 11-degree backsweep, 2-degree upsweep, 168mm rise, 22.2mm
StemDie-cast alloy, 40mm clamp, black

Wheels & tires

HubsAlloy, 3/8" axle, loose ball, dual lock nuts w/ 17mm contact side, nutted, 36h, Alloy, 14mm axle, 36h
Rims20", alloy single wall, pin joint, 36h
SpokesStainless, 14g, w/ brass nipple
Front tireSpecialized Rhythm Lite, 30TPI, wire bead, 20x2.0"
Wheel size20

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 4, 2026.