Bicycle Archive · Specification report

1998 Haro Group 1 Zi

Velopedia Archive ID 75380

Overview

Model year	1998
Brand	Haro
Model	Group 1 Zi
Bicycle type	BMX
Archive ID	75380
Original MSRP	$180.00
Colors	Black, chrome-plated, matte red
Sizes	Pro
Weight	27.5 lb

Frameset

Frame construction	TIG-welded
Frame material	Chromoly seat tube/hi-tensile steel
Fork	Haro
Fork material	Hi-tensile steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Fusion 1-piece, 44 teeth
Bottom bracket	Yst
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Fusion DX style platform, resin

Brakes

Brakes	Vanguard 694 brakes, Tektro RBP-341A levers

Cockpit & contact points

Headset	1" YST steel
Handlebar	Haro
Handlebar extensions	N/A
Stem	Fusion
Saddle	Haro
Seatpost	Lee Chi SP-08, 25.4mm diameter

Wheels & tires

Hubs	Joy Tech aluminum, nutted
Rims	Alex VP-20, 36-hole
Spokes	HTI stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	Front: 20 x 2.125" Haro Multisurface II, Rear: 20 x 1.75" Haro Multisurface II
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	508 mm
Head-tube angle	74°
Seat-tube angle	70°
Chainstay / rear center	381 mm
Wheelbase	927.1 mm
Fork offset / rake	38 mm

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