Rear head - D Rapide/Black Knight - Note 'D's have 2 Front pattern heads fitted
Standard alloy adaptor for 1,1/16" flange fitting carbs Monoblock and Mk1 Concentric.
Can be fitted to 'B' and 'C' Twins only if 2 Front heads are fitted
Rear Head as standard on 'B' and 'C' Twins.
Non-Standard alloy adaptor for 1,1/8" flange fitting carb i.e Mk1 Concentric.
Not supplied by Vincent factory believed to be unique to The VOC Spares Co