600 EXTREME

600 cc Multi Cylinder Four Stroke

850 cc Liquid Cooled Twin Four Stroke

1350 cc Air Cooled Twin Four Stroke

500 cc Liquid Cooled Two Stroke

Triumph 675 Triple and Kawasaki ZX636 are legal

SUPERBIKE

1000 cc Multi Cylinder Four Stroke

1200 cc Twin Liquid Cooled Four Stroke

Unlimited Air Cooled Twin Four Stroke

750 cc Two Stroke

BATTLE OF THE TWINS (BOTT)

Ltwt: 500cc Liquid Cooled Multi Valve, 650cc Air Cooled, 700cc Single

Mdwt: 750cc Liquid Cooled Multi Valve, 900cc Air Cooled, 1200cc Pushrod

Hvwt: 1100cc Liquid Cooled Multi Valve, 1200cc Air Cooled, Unlimited Pushrod

FORMULA TWO-STROKE

Ltwt: 125cc GP Style Machines, 350cc Liquid Cooled Street Based Machines, 500cc Air Cooled Street Based Machines

Hvwt: 250cc GP Style Machines, 500cc Liquid Cooled Street Based Machines, Unlimited Air Cooled Street Based Machines

OPEN SPRINT

Class open to all competition motorcycles from every class. Any bike/rider entered must be able to consistently lap at no less than 125% of the pole sitters pace. This will be determined upon review of timing system during practice and qualifying.All machines competing must meet all race machine prep requirements.)

LOST ERA

All machines must have a model year minimum 12 years older than the race date.

Light: 600cc Multi Maximum, 750cc Twin Maximum, Unlimited Single, 250 GP Two Stroke

Hvwt: 1000cc Multi Maximum, 1200cc Twin Maximum, Unlimited Two Stroke

OLD BOYS CLUB

OBC RIDER REQUIREMENTS : Riders must be over 40 years old at the time of the race in order to compete. Riders must be otherwise qualified/licensed by SOAR in order to compete. OBC Riders are restricted to the following machines:

600cc Multi Liquid Cooled Maximum

All BOTT eligible machines

All Formula Two Stroke eligible machines

All Lost Era Machines (Max 750cc for Multis)

All Vintage

ROOKIE CUP

All Rookie Cup riders are restricted to the following machines:

600cc Multi Liquid Cooled Maximum

All BOTT bikes except Hvwt

All Formula Two Stroke bikes

All Lost Era Bikes (Max 750cc for Multi Liquids)

All Vintage

FORMULA FEMME

Formula Femme rider requirements:  Must be female otherwise qualified/licensed by SOAR in order to compete. Formula Femme riders are restricted to the following machines:

600cc Multi Liquid Cooled Maximum (less than 12 years old)

All BOTT eligible machines

All Formula Two Stroke eligible machines

All Lost Era Machines (Max 750cc for Multis)

All Vintage

VINTAGE

All machines have to have a model year minimum 20 years older than the racedate.

Light: 550cc Multi Air Cooled Maximum, 750cc Twin Air Cooled Maximum, 400cc Multi Liquid Cooled Maximum, 650cc Twin Liquid Cooled Maximum, Unlimited Single, 125cc GP Two Stroke, 350cc Street Based Two Stroke Liquid Cooled, 500cc Street Based Two Stroke Air Cooled)

Mdwt: 750cc Multi Air Cooled Maximum, 900cc Twin Air Cooled Maximum, 600cc Multi Liquid Cooled Maximum, 750cc Twin Liquid Cooled Maximum, 250cc GP Two Stroke, Unlimited Street Based Two Stroke.

Hvwt: 1100cc Multi Air Cooled Maximum, Unlimited Twin, 900cc Multi Liquid Cooled, 750cc GP Two Stroke Maximum

CLUBMAN CHALLENGE

All bikes must be air cooled only. (Air/Oil GSXR, Katana, Bandit not permitted)

Ltwt: 650cc 2 Valve Multi, 550cc 4 Valve Multi, 750cc 2 Valve Twin, 650cc 4 Valve Twin, 850cc Single, 500cc Two Stroke

Hvwt: 1100cc 2 Valve Multi, 850cc 4 Valve Multi, Unlimited 2 Valve Twin, 1000cc 4 Valve Twin, Unlimited Single, 750 Two Stroke