Bimota
http://www.bimota.it/

Cagiva Italia
http://www.cagiva.it/

Cagiva USA
http://www.cagivausa.com/

Ducati USA
http://www.ducati.com/

Ghezzi & Brian
http://www.ghezzi-brian.com/

Gilera
http://www.gilera.com/

Laverda
http://www.laverda.com/

Magni
http://www.magni.it/

Moto Guzzi — America
http://www.motoguzzi-us.com/

Moto Guzzi — Italy
http://www.motoguzzi.it/

MV Agusta
http://www.mvagusta.com/

Piaggio Italia
http://www.piaggio.com/

Piaggio USA
http://www.piaggiousa.com/

Vespa
http://www.vespa.com/

AirTECH — bodywork
http://www.motorcyclebodywork.com/

Azione Moto
http://www.azionemoto.com/

Bevel Heaven
http://www.bevelheaven.com/

Brembo
http://www.brembo.com/

Cedea
http://www.cedea.cz/

Carrillo Industries
http://www.carrilloind.com/

Corbin
http://www.corbin.com/

The Cylinder Head Shop
http://www.cylinderheadshop.co.uk/

DID Chain
http://www.didchain.com/

Dymag Racing Wheels
http://www.dymag.com/

DynoBike — performance tuning in Victoria, Australia
http://www.dynobike.com/

EBC Brakes
http://www.ebc-brakes.com/

Epicycle Racing Developments
http://www.epicycle.com.au/

Erospace Technologies
http://www.eti-fuelcel.com/

Eurospares
http://www.eurospares.com/

Fast By Ferracci
http://www.ferracci.com/

Fox Racing Shox — shocks
http://www.foxracingshox.com/

Frenotec
http://www.frenotec.com/

Gowanloch Motorcycles — bevel-drive Ducati parts
http://www.ducati-gowanloch.com/

Italian Parts Exchange
http://www.piston.com/ipe/

Heli Bars
http://www.helibars.com/

Jacobs Electronics
http://www.jacobselectronics.com/

Jardine
http://www.jardineproducts.com/

Kosman Racing
http://www.kosman.net/

Magni
http://www.magni.it/

Micron
http://www.micron-exhaust.com/

MSD Ignition
http://www.msdignition.com/

Nichols Manufacturing
http://www.nicholsmfg.com/

OS Stainless
http://www.osmc.co.uk/

Paioli
http://www.paioli.com/

Pegasus Racing
http://www.pegasusracing.com/

Performance Friction
http://www.performancefriction.com/

Performance Machine
http://www.performance-machine.com/

Pro Twins USA
http://www.protwinsusa.com/

RC Components
http://www.rccomponents.com/

Road and Race Ducati — vintage Ducati parts
http://www.roadandrace.com.au/

Shu-Band-It
http://www.shubandit.com/

Sharkskinz Racing Bodies — Composites Unlimited
http://www.sharkskinz.com/

Spares GB — Moto Guzzi parts
http://www.spares-gb.com/

Sportsbike — Ducati 996 and 916 performance parts
http://www.sportsbike.com.au/

Sprocket Specialists
http://www.sprocketspecialists.com/

Sudco International
http://www.sudco.com/

Superbike Racing
http://www.superbikeracing.com/

SuperTrapp
http://www.supertrapp.com/

The Tank Shop — Aluminum gas tanks, oil tanks, and fenders
http://www.thetankshop.com/

Vance and Hines
http://www.vanceandhines.com/

White Brothers
http://www.whitebros.com/

Yuasa-Exide
http://www.yuasabatteries.com/

Zero Gravity
http://www.zerogravity-racing.com/

CD-ROM — Crazed Ducati Riders of Massachusetts
http://www.cd-rom.org/

CLASS
http://www.classrides.com/

Club Desmo
http://www.clubdesmo.com/

DesmodromiClub — Italia
http://www.desmodromiclub.com/

ECTA — East Coast Timing Association — time trials in Maxton, North Carolina
http://www.ecta-lsr.com/

Formula USA
http://www.formulausa.com/

ILOC — International Laverda Owners Club
http://www.iloc.org.uk/

Mid-Atlantic Roadracing Club
http://marrc.nova.org/

Moto Guzzi Club Belgium
http://www.motoguzzi.be/

Norwegian Moto Guzzi Owners Club
http://www.motoguzzi.no/

SCTA — Southern California Timing Association — racing at Bonneville, El Mirage and Muroc
http://www.scta-bni.org/

USFRA — Utah Salt Flats Racing Association — racing at the Bonneville Salt Flats
http://www.saltflats.com/

WERA Motorcycle Roadracing
http://www.wera.com/

Ben Bostrom
http://www.benbostrom155.com/

Carl Fogarty
http://www.carlfogarty.net/

Ruben Xaus
http://www.rubenxaus11.com/

Ducati
http://www.ducati.com/

Ducati Racing
http://www.ducati.com/racing/

Bevel Heaven
http://www.bevelheaven.com/

Beveltech Engineering
http://www.beveltech.org/

The Ducati Spare Site
http://www.ducatispare.com/

CD-ROM — Crazed Ducati Riders of Massachusetts
http://www.cd-rom.org/

Club Desmo
http://www.clubdesmo.com/

The Ducati Index — by Bob Cowin
http://www.cowin-tech.com/ducati/

The Ducati Monster List
http://www.ducatimonster.org/

DUC — Ducatis Unlimited Connection — "An international Ducati enthusiast organization"
http://www.duc.org/

Svenska Ducatiklubben
http://www.ducceklubben.org/