1. You have to be minimum 16 for CBT on a 50cc and 17 for 125cc.
2. You can go on dual carriage ways, not motorways I believe.
3. Not sure, laws have changed since I did it. Someone else will be able to tell you. But either way, the CBT still needs to be valid when you do the bigger tests.
You can do a CBT before you're 17 (50cc only) then when 17 you can do the A1 for 125 cc.
You're CBT will last 2 years, after that time do the A1 test or retake the CBT.
Yep no motorways.
Normally, no, but disabled people can take it at 16.![]()