Wheel package...................
So my Zetros was ordered from factory with 385/65/22.5 wheels. I think this is becasue in the UK the 22.5s are easy to get hold of.
The issue with the 22.5s is they are so small that @ 90kph the engine was @2400rpm. It was reving far to hard for any long ditance driving for my liking.
I made enquires with a friend who has the factory wheel package 14r20 Michelin xzl's. He said his truck sits at 90kph and the engine is at 1900rpm which is far better then mine but i wanted lower rpm.
The good thing with the Zetros is that it has a low cab due to the engine being up front and the cab sat on the gearbox which is just above the chassis frame. This was designed so it would fit into the german railway and also the Hercules aeroplane, hence the roof slopes.
So as i want lower engine rpm but also as much axle hight as possible without having to worry about my total 4m max height limit, i decided to buy the 16r20s Michelin xzl's
They are HUGE but mega cool at the same time (you will see below)
The zetros can be ordered from factory with the 16r20s but they have to have certain azles and transfer casing. After a few emails to Mercedes Germany i was told that i have the axle and transfer ratios to fit the 16r20s.... smiles all around
The only thing i didnt like was the £18,000 cost ( $22,130 or 20,800 euros)
The tyres were a little under £3000 per tyre. This is the new price
Take a look