(14 Dec 2016, 11:48 pm)BusLoverMum wrote I can ignore any B9 upper deck noise because it's a reprieve from the grunt grunt grunt grunt grunt grunt engine noise on the lower deck. The grunting is at a frequency that I find quite painful to listen to. I even only manage hte X1 with deep breaths to get me through it.The tridents are a bit like that, but I love the noise. It's the sound of a powerful diesel engine that doesn't have some alien-like ZF sounding gearbox within it. Makes the bus feel like its going 50 miles am hour quicker, but hey, that's just me!
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