Provisional Licence holders
16 years old (category P = Moped) Moped 50cc, geared or automatic.
17 years old and over (category A = Motorcycle) Motorcycle up to 125cc, geared or automatic.
MUST HAVE VALID CBT

Full Car Licence holders
17 to 70 years old (category P = moped) can ride up to 50cc
17 to 70 years old (category A = motorcycle) can ride up to 125cc
MUST HAVE VALID CBT

Full test only requirements
16 years old - 50cc only
17 to 21 years old - 125cc only
21 years old and over are eligible to take direct access (using a bike over 47 BHP ie a 500cc)
YOU MUST HAVE CBT PASS CERTIFICATE AND PASS A THEORY TEST BEFORE THE PRACTICAL TEST