B33-1 250cc 2.49 hp

B33-2 250cc OHV 2.49 hp S.P.

B33-3 250cc 2.49 hp Blue Star Junior

R33-4 350cc OHV 3.48 hp

R33-5 350cc OHV 3.48 hp Blue Star, Hand Change

R33-5 350cc OHV 3.48 hp Blue Star, F.C.

W33-6 500cc 4.99 hp

W33-6 500cc 4.99 hp Post Office

W33-7 500cc 4.99 hp OHV

W33-8 500cc OHV 4.99 hp Blue Star, F.C.

W33-8 500cc OHV 4.99 hp Blue Star, Hand Change

W33-8 500cc OHV 4.99 hp Blue Star

W33-9 500cc OHV 4.99 hp Special, Hand Change

W33-9 500cc OHV 4.99 hp Special, F.C.

M33-10 600cc 5.95 hp

M33-11 600cc OHV 5.95 hp

G33-12 1000cc 9.86 hp Twin Light

G33-13 1000cc 9.86 hp Twin, World Tour

G33-13 1000cc 9.86 hp Twin, War Office