Shipping bike to Czech rally

Riding or accompanying a road legal bike to the Czech Republic is covered by existing arrangements. However since Brexit and the UK leaving the Customs Union, duty is payable on goods at the borders of the countries being crossed. A bike being couriered without the owner will be treated as goods. Temporary imports will require a customs carnet and insurance. This will cost several hundred pounds. It has more or less killed off people from the UK organising track days in Europe.

The requirements for residents of Northern Ireland maybe different

I understand that couriers are not generally offering a service for individuals at present. 

Guidance can be viewed on this website.

Further to the above, from what I can gather, you will need an operators licence on the continent from this weekend if you are using certain vans. It includes most transits as the limit is 2.5T mass.

Realistically the only real way to get there is to ride, this is not a Brexit thing as it appears to affect EU citizens as well.

Thankfully, the UK has not introduced this truly stupid ruling. 

It seems to be only needed for carrying goods for hire or reward. Looks like being fluent in 26 different languages could be helpful when being stopped for a check.