It’s like the rest that’s multi-reason; you buy a camera lens that could do 18mm to 300mm and it’ll never ever be nearly as good like a two lenses that just do 18 and 300mm respectively. There’s a number of systems that will help engines work above rev ranges for https://hectorwlwgq.ampedpages.com/fascination-about-gearbox-cvt-59742427