Neutered cats can keep on spraying for ever. Some stop, some just stay prolific. We papered everything in the house when guests weren't around just to keep things somewhat clean. Newspapers work well. All the stuff for keeping the cat way did not work, so news papers were the best bet (never had my Duck in the house though). As for damage, yes, cat spray will corrode stuff pretty quickly. DOn't know about rubber, but your metal bits will suffer if you don't clean them off well after a good marking. Maybe a dedicated cover or fence around the bike would help, but if the cat keeps spraying, do the above or feed it to the crows!
Good luck!
13-Dec-2004, 06:59 
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