Hellwig Rear Swaybar - E450
Hey Gang, I'm considering installing the Hellwig 7180 on my 2013 E450. The rig is 32'5" in total length. The mod is cheap by RV standards, but I'm wondering if I'd get any real bang for the buc...
Forum Discussion
rehopp wrote:
Very good advice on the TPs, to not use more than you need to carry the load..... but watch TP on your duals (they must NOT touch or they heat up). If they touch they become 'will pops', as opposed to 'May pops'.
There is one way to reduce Class C rear duals tire pressure nicely, while at the same time insuring that they do not touch during sidewall flexing: Use a 215/85R16 size tire, instead of the common 225/75R16 size tire that usually comes on Class C motorhomes ... and that their owners keep putting back on them at replacement time.
A Load Range E 215/85R16 tire requires pressures and carries loads identical to a Load Range E 225/75R16 tire, however the tire is a bit NARROWER .... so there is more room between their sidewalls when used in dual sets. This obviously will help prevent dual tires from touching.
Three more advantages to this different tire size: There is also is better air circulation between them when used in dual sets ... for improved cooling in hot weather road travel. They also raise the whole RV about 0.6 inches (215/85R16 tires are slighlty larger diameter than 225/75R16 tires) for more ground clearance ... which helps when turning off/onto the road from parking lots and helps if you occasionally want to take you Class C off-pavement. More sidewall clearance also reduces the chances of wedging rocks between the duals when running on gravel roads.
I put a new set of Load Range E 215/85R16 Michelin LTX M&S2 tires on our Class C 2-3 years ago and they have so far been superb. I had to buy 7 tires at the time so as to have the spare be the same new size.
