Harry,,
Any good bike shop will have a decent range of helmets
You need to try a variety on as they will differ in sound absortion
from person to person. Paul has a shoie helmet he claims is as quiet as.
But when i tried it (we both wear the same size helmet) i found it very noisey.
If the salesman wants a sale he will let you try some out in the car park
so take your bike with the V&H fitted and give it a go. Remember the best
thing to reduce noise is moulded earplugs you can even get them as moulded headphones
so you can use with ipod's etc...
Aj