I might be misremembering, but I thought the new bmw system was dual cam - so exactly what you are suggesting, a trade off in the middle, but not vvt.
At any rate, variable cam systems in bikes have certainly been around since the early 80s with one of the 400c cbrs. They never really caught on but there are a bunch of variations.
I might be misremembering, but I thought the new bmw system was dual cam - so exactly what you are suggesting, a trade off in the middle, but not vvt.
At any rate, variable cam systems in bikes have certainly been around since the early 80s with one of the 400c cbrs. They never really caught on but there are a bunch of variations.