Bicycle Archive · Specification report

2004 Diamondback Viper X

Velopedia Archive ID 31726

Overview

Model year	2004
Brand	Diamondback
Model	Viper X
Bicycle type	BMX
Archive ID	31726
Original MSRP	$165.00
Colors	Flat Black, Super Nickel
Sizes	20"

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
Fork	Diamondback
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	1-piece 175mm, 44 teeth
Bottom bracket	Loose ball
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC Z410, 1/2 x 1/8"
Pedals	Resin, platform

Brakes

Brakes	Rush U-Brake, w/detangler rear brakes, aluminum rear levers

Cockpit & contact points

Headset	1 1/8" threadless FSA
Handlebar	DB Riser
Handlebar extensions	N/A
Stem	Aluminum
Saddle	Padded
Seatpost	Steel, 25.4mm diameter

Wheels & tires

Hubs	Aluminum
Rims	Alex C303, 36-hole
Spoke nipples	Brass nipples
Front tire	Front: 20 x 2.125" DB Knobby, Rear: 20 x 1.95" DB Knobby
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	520.7 mm
Head-tube angle	74°
Seat-tube angle	71°
Chainstay / rear center	387.3 mm
Wheelbase	957.6 mm
Fork offset / rake	30.5 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 28, 2026.