Bicycle Archive · Specification report

2004 Diamondback Joker

Velopedia Archive ID 31683

Overview

Model year	2004
Brand	Diamondback
Model	Joker
Bicycle type	Freestyle/jumping
Archive ID	31683
Original MSRP	$188.00
Colors	Black OPS, Stealth Grey
Sizes	Pro

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork	Diamondback
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	3-piece chromoly 175mm, 39 teeth
Bottom bracket	Loose ball, splined
BB shell width	68mm English
Rear cogs	1-speed, 14 teeth
Chain	KMC Z410, 1/2 x 1/8"
Pedals	Aluminum platform

Brakes

Brakes	Tektro 907A alloy U-brake rear brakes, aluminum rear levers

Cockpit & contact points

Headset	1 1/8" threadless OS Threadless
Handlebar	DB 4 pc Park Bars
Handlebar extensions	N/A
Stem	DB D-day alloy
Saddle	DB Padded
Seatpost	Aluminum, 25.4mm diameter

Wheels & tires

Hubs	Front: steel, 14mm, Rear: steel, 3/8
Rims	Alex C303, 48-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.95" DB L-Train II
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	495.3 mm
Head-tube angle	74°
Seat-tube angle	71°
Chainstay / rear center	374.6 mm
Wheelbase	914.4 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 27, 2026.