Bicycle Archive · Specification report

1997 Ross Piranha Pro 146

Velopedia Archive ID 67556

Overview

Model year	1997
Brand	Ross
Model	Piranha Pro 146
Bicycle type	Juvenile
Archive ID	67556
Original MSRP	$198.95
Colors	Red
Sizes	Boys 12"

Frameset

Frame construction	TIG-welded
Frame material	Chromoly seat tube/hi-tensile steel
Fork	Ross
Fork material	Chromoly, 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 chromoly, 44 teeth
Bottom bracket	One piece
BB shell width	68mm English
Rear cogs	1-speed, 18 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Resin

Brakes

Brakes	Dia-Compe MX-844 brakes, Dia-Compe MX-844 levers

Cockpit & contact points

Headset	1" YST 665
Handlebar	Steel
Handlebar extensions	N/A
Stem	Aluminum
Saddle	Ross BMX
Seatpost	Pillar, steel, 25.4 mm diameter

Wheels & tires

Hubs	Aluminum nutted
Rims	Kin Lin aluminum, 36-hole
Spokes	Ta Sen stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.95" Ross BMX Pro
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	455 mm
Head-tube angle	70°
Seat-tube angle	73°
Chainstay / rear center	405 mm
Wheelbase	900 mm
Fork offset / rake	50 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 21, 2026.