ST1100Y
Site Supporter
+1 on the Spray Cleaner & Polish...... Honda Spray Cleaner & Polish (mentioned above in post #10) work just as well as far more expensive products (including aircraft-spec products) for a day or two immediately after application...
Methinks that the treatments on bike- as well as aircraft-screens just suffer from the road/tarmac spray containing all kinds of contamination...
Exhaust, fuel, oil spill, salt/thawing agents, fertilizer, manure, etc...
No way to find a permanent coating resisting the chemical bombardment there...