What kind of tyres do I need for my SCO/Monark Long John?
SCO and Monark Long Johns built since 1972 will most likely have a 20″ front wheel (ERTRO diameter: 406 mm) and a 23″ rear wheel (ERTRO diameter: 484 mm). If your bike dealer is not able to deliver the right tyres visit a dealer specialized in motorcycles and scooters. Both 23″ and 20″ are sizes used on older mopeds, and the tyres used by SCO and Monark are actually moped tyres.