> regarding ICU motorbikes, you are fine with normal car license up to 125ccm
This sounds like class A1 vehicle (up to 125 cm3 for ICE, up to 11 kW engine power, up to 0.1 kW/kg engine power per mass of vehicle)
With my class B license (the usual normal car license most people have), the only two-wheel motor vehicles I'm allowed to operate are class AM mentioned by the parent comment above.
For operating class A1 you need a class A license.
Quoted from Wikipedia about B holders automatically able to drive also A1 without any additional training:
"B licence holders in Czech Republic (only motorcycles with automatic and semi-automatic transmission), Italy, Latvia, Slovakia (after two years and only motorcycles with automatic transmission), Spain (after three years), Poland (after three years), Portugal (at least 25 years old or additional licence for mopeds), and Belgium (after two years) are allowed to drive motorcycles not exceeding 125 cubic centimetres (7.6 cu in) within the respective countries."
So roguhly 1/3 of EU population is fine just with B license. In other countries you just need few hours of training.
In the UK you can also operate class A1 for up to two years on a provisional license as a 'learner driver' displaying 'L' plates upon completing compulsory basic training (CBT)
You can't 'fail' CBT and any motorcycle instructor / downtrained instructor can write you a certificate once you have completed the required steps and are deemed competent. This takes half a day to a day and has to include 2 hours of supervised riding on the road
Many people who don't want to ride bikes with more than 125cc never get their A license and just retake the CBT every 2 years. Most delivery drivers or parking wardens etc. I have seen do this too
This sounds like class A1 vehicle (up to 125 cm3 for ICE, up to 11 kW engine power, up to 0.1 kW/kg engine power per mass of vehicle)
With my class B license (the usual normal car license most people have), the only two-wheel motor vehicles I'm allowed to operate are class AM mentioned by the parent comment above.
For operating class A1 you need a class A license.