What am i entitled to ride?

[MrViper]

I was just looking at my new full car driving licence and noticed i had the following category's:

A with restriction code 79(3)
AM restriction code 122
A1 and A2 is blank

I have been goggling but i find the information confusing

My last bike was a Suzuki GP125 but sold it when i passed my car test 15 years ago.

Any information would be appreciated!

 

[MrViper]

thanks for the information and taking the time to look

most appreciated