Norton Commando Black Diamond Intake & Exhaust Valves - 06-4034 & 06-5115 - 1969-75 Use the drop down menu

Use the drop down menu to select which tire size you desire

M Part number is 70-4951 or E4951

Also fits various BSA & Triumph Unit Singles (Victor

the paper air filter is the most affordable and features a paper element

Get a set of USA made ARP rod bolts today and have some peace of mind at no extra charge

Norton Commando Black Diamond Intake & Exhaust Valves - 06-4034 & 06-5115 - 1969-75 Use the drop down menu*Back In Stock!* New USA Made Kibblewhite Norton Commando Twins Black Diamond Intake & Exhaust Valve Set. This is as good as it gets! If your Rebuilding your Top End on your Norton Commando and looking to install the absolute Best Quality parts, then this set is exactly what you need! You won't find a better price or quality on these BSA Black Diamond Valves! Made from One Piece Forgings! Fits all 750 & 850 Norton Commando Twins (Fastback, Interstate,