Quick Stats

1959-67 247cc (67x70mm) OHV single 15hp, 75mph, 90mpg 285lbs

What to Expect

Belated modern update on the C12, with better chassis and unit construction engine. Okay for mild use but exploding gearbox, poor valvegear materials, weak big-end and nasty clutch turned up when they were thrashed. The later models were much improved. SS80 was tuned with roller big-ends but could still blow up the gearbox and was generally short-lived. Best buys are late C15’s with upgraded electrics.