VelopediaBicycle Archive · Specification report

2000 Diamondback Reactor Jr.

Velopedia Archive ID 45737

Overview

Model year2000
BrandDiamondback
ModelReactor Jr.
Bicycle typeBMX
Archive ID45737
Original MSRP$349.99
ColorsRed
SizesJunior

Frameset

Frame constructionTIG-welded
Frame material6061 T6 aluminum
ForkDiamondback
Fork materialChromoly, unicrown crown
Rear shockN/A

Drivetrain

Component groupN/A
ShiftersN/A
Front derailleurN/A
Rear derailleurN/A
CranksetForged alloy, 43 teeth
Bottom bracketDiamondback spindle
Rear cogs1-speed
PedalsPlatform, aluminum

Brakes

BrakesDia-Compe alloy linear pull rear brakes, Dia-Compe alloy linear pull rear levers

Cockpit & contact points

Headset1" threadless
HandlebarAlloy
Handlebar extensionsNot included
StemAlloy Ahead type
SaddleUni style
SeatpostUni style

Wheels & tires

HubsAlloy
RimsAlex alloy, 32-hole
SpokesStainless steel
Front tire20 x 1 3/8" Tioga Comp III
Wheel size20" wheels

Geometry · Legacy reference

Top tube469.9 mm
Head-tube angle73°
Seat-tube angle68.2°
Chainstay / rear center368.3 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.