VelopediaBicycle Archive · Specification report

1999 Haro Group 1 Zi

Velopedia Archive ID 88243

Overview

Model year1999
BrandHaro
ModelGroup 1 Zi
Bicycle typeBMX
Archive ID88243
Original MSRP$180.00
ColorsChrome-Plated, Red/Silver, Super Blue
SizesPro
Weight27.8 lb

Frameset

Frame constructionTIG-welded
Frame material4130 chromoly main triangle/hi-tensile steel rear stays
ForkHaro
Fork materialChromoly/hi-tensile steel, unicrown crown
Rear shockN/A

Drivetrain

Component groupN/A
ShiftersN/A
Front derailleurN/A
Rear derailleurN/A
CranksetHaro Megacrank, 44 teeth
Bottom bracketFusion sealed
BB shell widthAmerican
Rear cogs1-speed, 16 teeth
ChainKMC 410, 1/2 x 1/8"
PedalsFusion DX style platform, resin

Brakes

BrakesChang Star linear-pull rear brakes, Tektro 317A rear levers

Cockpit & contact points

Headset1 1/8" threadless Aheadset SE-1
HandlebarHaro Sledgehammer
Handlebar extensionsN/A
StemFusion
SaddleHaro slant nose
SeatpostFusion, 25.4mm diameter

Wheels & tires

HubsJoy Tech aluminum, nutted
RimsAraya 707X, 36-hole
SpokesSteel, 2.0mm straight gauge
Spoke nipplesBrass nipples
Front tire20 x 2.25" Haro Holeshot A-6
Wheel size20" wheels

Geometry · Legacy reference

Top tube508 mm
Head-tube angle74°
Seat-tube angle70°
Chainstay / rear center374.6 mm
Wheelbase929.6 mm
Fork offset / rake28.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 1, 2026.