Re:
Last year The Cambridge Festival of Cycling held a talk entitled 'Did Queen Victoria ride a bicycle ? '
Unfortunately I was unable to attend , so I do not know their conclusions
Over the years there has been much conjecture on this subject , however if she did ride a bicycle , it is almost
certain that whatever the type of bicycle/tricycle etc she rode , it would have had black spokes due to her self imposed
extended period of mourning after the death of Prince Albert
Given her example , you will have to decide for yourself when black spokes are appropriate