My Shoei (XR800?) was getting bit on the pongy side. No mushrooms yet, but definitely on the wrong side of "pleasant". Time for a clean, methought. So, I got a little aerosol tinny of
Carburol Helmet Sanitiser, and guess what? It does exactly what it says on the tin.
One application: spray on, foams up, wipe off, leave to dry. Very nice and fresh (smells peachy). But the amazing thing (to my simple little mind anyway!) is that all the padding has been rejuvinated. The helmet is snug, tight, very comfortable, and probably fits tighter and better than it did when new.
I would HIGHLY recommend this Carburol stuff!
GSX1400 : It's like wiping your arse with silk. 
Frettons
Scottoiler
BikeSafe
Dangleberry!"Million-to-one chances happen nine times out of ten." - Terry Pratchett
"My body is a temple; yours is an amusement park." - Ceri
"You sir are a social hand grenade." - Gingerwhinger
"No, I don't like the
Mail On Sunday, but it's like self-harming; I know I shouldn't do it, but nothing else gives me the same buzz." - Ceri