Bicycle Archive · Specification report

1997 Diamondback Reactor Jr.

Velopedia Archive ID 65330

Overview

Model year	1997
Brand	Diamondback
Model	Reactor Jr.
Bicycle type	BMX
Archive ID	65330
Original MSRP	$400.00
Colors	Brushed
Sizes	Boys 8.5"
Weight	16.5 lb

Frameset

Frame construction	TIG-welded
Frame material	7005 aluminum
Fork	Akisu
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	Dotek 3-piece, 43 teeth
Bottom bracket	YST BB 611, 117.5 mm spindle
BB shell width	68mm Threadless
Rear cogs	1-speed, 16 teeth
Chain	KMC HP-20, 1/2 x 3/32"
Pedals	Aluminum

Brakes

Brakes	Chang Star brakes, Dia-Compe MX-101 levers

Cockpit & contact points

Headset	1" YST
Handlebar	Kalloy aluminum
Handlebar extensions	N/A
Stem	Hsin Lung
Saddle	Velo VL-208
Seatpost	Aluminum, 22.2 mm (7/8 inch) diameter

Wheels & tires

Hubs	King Kong aluminum, nutted
Rims	Alex aluminum, 32-hole
Spokes	Chung Nan stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1 3/8" Tioga Comp III
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	467.4 mm
Head-tube angle	73°
Seat-tube angle	68°
Chainstay / rear center	368.3 mm
Wheelbase	863.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on August 25, 2026.