Hi I have a 1972 Trident with conical hub and 5 speed, Everyone tells me that 5 speed were not available in 72 the engine and frame nos state DG which is April 1972 but is T150V which means 5 speed, I know in 71 they made 200 5 speeds to send to America so they could race production bike at Daytona with a 5 speed, wondering if they done this again in 72, can anyone fill me in on this thanks ?