THE 15.8 MM WHEEL MIXTURE, CONTAINS 2 LOTS OF 6 TYRES, FOR THE OLDER MARGATE PRODUCED 3 POLE MOTOR WHEEL SIZE, IN 2 DEPTHS, THE THICKER SIZE GIVE MORE TRACTION. ALSO SUPPLIED WITH 6 TYRES FOR THE MORE RECENTLY CHINA PRODUCED 5 POLE MOTOR SIZE, USED IN STEAM ENGINE TENDERS.
