With motorcycles as with any motor type vehicle, as well as other things non motorized, caution should be used, and safe driving laws, practices, and technique should be adhered to and utilized. You know this, obviously. That that is out of the way. I feel you may simply be indeed worrying too much.
I feel if you do as you already know and drive safely you should be fine.
That no is not a hundred percent guarantee you will always be fine on a motorcycle. Truth be told, things happen. These things that happen do not hold prejudice in any way shape or form. You could drive safer than aunt betsy, and still there is a possibility something could happen. You would not be the only person (chances) on the road. Someone else not practicing safe driving could hit you, someone practicing safe driving could have a malfunction, mishap etc and do the same. Motorcycle or any other form of vehicle.
Things happen. It is a possibility, it need not however be a probability, and these thoughts need not be a warning at all.
Like I said, I think you are thinking about it way too much (worrying) and letting the numbers game of synchronicity bother you perhaps.
I do not adhere personally when I see repeat numbers. I do not consider them signs of anything in and of themselves. Others are more than welcome to their own views, and to disagree, however I see this view of mine to simply not adhere to them as an important synchronicity or sign as a blessing in that it frees up much of my time to concentrate on signs and such that hold relevance and meaning to me personally, and frees my mind of worry and too much concentrating.
I have never heard of number sequences being an active part of spirituality until coming here to this forum, and then reading about what everyone was talking about with angel numbers and number synchs online.
My view of a sign prior had been things such as if I see a certain feather fall into my path while walking, I stop short to see what type it is, I stop just short of walking off a curb due to not paying too much attention, when I stop to take note of said feather is when someone driving turns sharp around the corner where the curb I was about to walk straight through is, and I quickly realize I would have been hit.
That is to say in my faith signs and warnings have always came to mean something very profound, and were never whenever I looked up or at the clock and the time read 222 or 333 or 1111, or 111.
Now the feather case above is not too much of a far fetched example. I have had something similar recently happen only it was no feather nor was it I at the curb. It was a woman pushing her infant in a carriage and I was given certain time but not too very much before she reached the curb. I had a heard a voice inside me say to stop her, say something to stop her- a male voice- I am female so this strikes me as odd. I immediately thought you want me to say something and make a fool of myself? Do it. Yes. Make a fool out of yourself this time. Then the "I'm not even F-word asking you" comment. I increasingly grew nervous as she pushed the carriage toward the curb, increasingly anxious as she got closer... wondered as quickly as possible about what I was to say to distract her without obviously and blatantly shouting the word stop, so I ended up coughing very rudely and loudly, and attempting to be strange enough without being obvious as the word stop. So I coughed out the word "Right" rudely in response to the voice. She turned and looked at me like I was weird her carrier right to the curb and a car took a nose dive straight away turning right before she went to push the carrier across. Right before. The child's carriage was so close to the vehicle that turned she moved it back a couple of inches after the vehicle turned.
I do not know what would have happened if I had not been weird. It happened quickly. I do know seeing she had no intention of stopping to look before she crossed. As it was she moved the carriage back a couple inches in shock, and was by action and deed about to cross, did not bother looking, assumed she was alright. I do not judge as I myself never even heard this vehicle approach to begin with. I suspect neither had she.
That is a warning. Only I was not being warned in regards to myself you see? I rarely am. It happens rarely. There is more concern on others.
Numbers for me do not equate to signs, though many do see it this way, that they are synchronicities. I simply do not.
Whether something happens here to you or not, no I do not think you should be worrying too much. And I will say and I do realize it isn't easy, but I absolutely wish you not to succumb to the fear feelings. They do not serve for anything but undue anxiety, and certainly are not the best emotions for emergencies should they arise.
There has not been a motorcycle accident you have been involved in, I do not think it wise for you to worry yourself sick over one, before you have even given yourself an opportunity to practice driving, safely.
Things will happen, sometimes not at the fault of our own.
But do not fear life, and living. Enjoy your time with reason and respect for yourself and others.
Consider giving your healing more time after the procedure. Docotors really do not allow us too much time do they?
That is to say we do not all heal at the same rate.
Those are my thoughts. Hope you found some of it helpful.
All my best to you.