kirillka,
Something to consider when you change to tires with all the same diameters.
The 225/75r16 tires that your RV had on originally are rated for the axle weights of your Sprinter based RV.
Not sure that they make 55 and 65 series with the same weight carrying capacity.
Normally, on Sprinter vans, and especially on Sprinter Van based RVs, the recommended (and
approved) tires are in the 75 and 85 series which are rated (and known) to give you the safety
factors and longer mileage with the axle weights you most likely have with the Vista Cruiser
RV.
There should be USDOT/NHTSA mandated labels/stickers on the side of the drivers seat box and
on the "b" pillar (drivers door rear jamb) that specify the approved tire size and inflation pressure.
To put smaller/less load capacity tires that cannot handle the weight of the RV conversion on your Sprinter puts you,
your family, and everyone else on the road around you at some level of increased risk.
Were you to have an accident, from a tire failure, your insurance company could potentially void
your insurance coverage.
Equipping your Sprinter based RV with the approved tire size, and keeping all your tires inflated to
the recommended pressures will make your Sprinter easy to drive, safe, and result in the maximum
overall tire mileage.
My vote would be a set of 5 (including the spare) Michelin LTX MS2 in the 215/85R16 LRE Serv. Desc. 115/112R size.
http://www.tirerack.com/tires/tires...R6LTXMS2&vehicleSearch=false&fromCompare1=yes
Expensive.....yes.....worth the expense....absolutely!
Roger