(10 Jul 2016, 8:42 pm)streetlite5402 wrote I think the opposite. From my experience, Voiths are generally best kept to city and town routes while ZFs seem to perform at their best on country roads and steep banks.
I don't know much about gear boxes on buses but I think the X15 57 reg buses could do with some TLC, the reason is they sound slightly round especially when they are going over the hill as you enter spittal. this could be just me thinking they are bad but like a lot of people say more people hearing the badness in something is better than on person.