Thanks everyone for all your help. Maybe I will pick up one in Canada afterall and then take it over if there's no chance of getting a decent one in Cuba. The information I had been given was that you could now pick up Canadian imported bikes in Havana and that you were even able to buy raleighs..... I thought it sounded too good to be true though. I'm travelling by myself and plan to just take each day as it comes. I have considered the pitfalls of doing this kind of trip especially by myself, but I'm sure there are things I haven't thought of..... what risks were you thinking of?
Couple of things:
-The Cubans are super friendly and it is a reasonably safe country to get around in. The justice system there doesn't tolerate any crap. However, you will be very very prone to theft. DO NOT leave the bike anywhere out of sight, regardless of it being locked. Even in hotels/private house accomodation, then give them a little extra for keeping your bike safe. Bits will have a habit of disappearing, for example you might come back to your bike to fine a few bolts missing etc. If you have to leave it out of sight, pay someone a dollar to watch it.
-The road surfaces are poor, so be prepared for punctures/warped wheels. There are plenty of "Poncheras" (puncture repair places) around. However the majority of Cuba is countryside so you can go miles without going through a town.
-The locals will stop and help if you have mechanicals.
-The road signs are woeful. This will be your biggest headache. It would be advantageous if you can speak Spanish. They have a habit of making a simple task of telling you directions into an IQ test.
-You will get hassle from the men.
HTH