Bicycle Archive · Specification report

1999 Pyramid BMX 20"

Velopedia Archive ID 84814

Overview

Model year	1999
Brand	Pyramid
Model	BMX 20"
Bicycle type	Juvenile
Archive ID	84814
Original MSRP	$119.95
Colors	Chrome-Plated
Sizes	Boys 11"
Weight	27 lb

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork material	Hi-tensile steel, oversize, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	1-piece 6 1/2", 44 teeth
Bottom bracket	One piece
BB shell width	American 24tpi
Rear cogs	1-speed, 18 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	CS-972N

Brakes

Brakes	Coaster rear

Cockpit & contact points

Headset	1" steel
Handlebar	Steel BMX
Handlebar extensions	N/A
Stem	Alloy
Saddle	GS-383
Seatpost	Steel, 25.4mm diameter

Wheels & tires

Hubs	Front: Jou Yu JY-443, Rear: coaster brake
Rims	HJC P-GN aluminum, 36-hole
Spokes	Sha-Dar stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.75" knobby
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 9, 2026.