Bicycle Archive · Specification report

1999 Diamondback Joker

Velopedia Archive ID 85743

Overview

Model year	1999
Brand	Diamondback
Model	Joker
Bicycle type	Freestyle/jumping
Archive ID	85743
Original MSRP	$219.99
Colors	Black, Chrome-Plated, Mustard
Sizes	Pro
Weight	31.7 lb

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
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 steel, 44 teeth
Bottom bracket	YST BB 621
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Platform, resin

Brakes

Brakes	Dia-Compe Bulldog front/aluminum U-brake rear brakes, Dia-Compe 120 levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset SB-1 w/SST Oryg detangler
Handlebar	Freestyle
Handlebar extensions	N/A
Stem	Aluminum
Saddle	Diamondback freestyle
Seatpost	Chromoly, 25.4mm diameter

Wheels & tires

Hubs	Aluminum, nutted
Rims	Aluminum, 48-hole
Spokes	Shuhn Lih stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.95" freestyle
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	469.9 mm
Head-tube angle	73°
Seat-tube angle	70°
Chainstay / rear center	387.3 mm
Wheelbase	908 mm
Fork offset / rake	30 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 29, 2026.