WKA Tech Committees have been working diligently on determining the 2005 class offerings for each of WKA's national series.

George Kugler's Manufacturer's Cup East

• HPV Jr.
• Sportsman Yamaha Jr.
• Sportsman Cadet
• Jr. Sportsman (Final 1 and Final 2)
• HPV Jr.
• Yamaha Jr. Supercan
• Formula Y Jr.
• 80cc Jr. Shifter (Final 1 and Final 2)
• Yamaha Light
• Yamaha Heavy
• Yamaha Masters
• Formula Y Sr.
• ICA ICC (Final 1 and Final 2)
• HPV Light
• HPV Heavy
• Yamaha Sr.
• Sportsman
• TaG
• NEW E-Z Kart
• NEW Spec 100 Eliminated

Manufacturer's Cup West

• Kid Karts Saturday & Sunday
• Jr. 1 Comer
• Jr. 1 HPV (WKA rules)
• Jr. 1 Yamaha
• Jr. Superbox
• Jr. 2 HPV (WKA rules)
• Formula Y Jr.
• Formula Y Sr.
• HPV Light & Heavy (WKA rules)
• ICC (Final 1 and Final 2)
• Senior Superbox
• Senior Sportsman
• Yamaha Light NEW
• Yamaha Heavy NEW
• TaG (West Coast rules) NEW
• Rotax Sat & Sun Eliminated
• HPV 4 Eliminated
• ICA Eliminated

Horstman Gold Cup Series

• Briggs Senior Sportsman Medium and Heavy (Raptor only)
• Briggs Super Controlled (Raptor only)
• Briggs Junior Sportsman 1 Light and Heavy (Raptor only)
• Briggs Junior Sportsman 2 Light and Heavy (Raptor only)
• Briggs Junior Restricted Light and Junior Restricted Heavy (Animal and Raptor combined) Briggs Junior Light and Junior Heavy (Raptor only)
• Briggs Senior (Raptor only)
• Briggs Light, Medium, and Heavy (Raptor only)
• Briggs Super Heavy (Raptor only)
• Briggs Animal Medium and Heavy (Animal only)
• Briggs Jr Animal Class Eliminated & Combined with Briggs Rest Jr (raptors) Briggs Animal Modified NEW

Dunlop Tire Road Race Series

• 100cc Controlled
• 100cc Controlled Spec
• 100cc Piston Port Lite
• B Stock
• Briggs Jr Animal Sprint Lite and Heavy
• Briggs Sprint 335 and 360
• Briggs Sprint Over 35
• CIK 125 Sprint 1 and 2
• Controlled Limited
• Formula 100
• Formula 125
• Jr Enduro Lite and Heavy
• Jr Sprint Lite and Heavy
• PP Can Lite, Medium and Heavy
• PP Can Sprint 340, 360 and 380
• Spec 125 Sprint Final 1 and Final 2
• Unlimited 1 and 2
• WKA/ICC 125 Sprint 1 and 2
• WKA Sprint Lite and Heavy
• Yamaha Medium and Heavy
• Yamaha Sportsman Lite, Medium and Heavy
• Yamaha Sprint Lite and Heavy
• Briggs Animal 335 and 360 NEW