[Walter]

We have 315s on our coach. Our friend with a 2,000 Prevost has 365s on front and tag. He is 3,000 pound heavier than our coach (one slide). I have driven his coach, and the ride in his coach was not significantly different from ours. We are within the front axle rating on our coach, so I see no advantage in going to 365 tires, and a con is potential availability concerns with the 365s. In my opinion, unless you need 365s for weight-carrying purposes, installing 365s are a waste.

[Dana]

Larry,

I wouldn’t do it unless needed for axle weight. I had to run 125 psi in my 315 steers to match my front end weight, so going to 365’s was a plus.

[Archived]

Our bus is heavy in the front too. I had to run 130 in the 315’s and we were at max load. Now we can do 105 in the 365’s and have load to spare. They did make a difference… the 315’s were like rolling on rocks. It’ll probably depend on the coach’s weight situation as to whether or not you’d want them.

As with a lot of things on the internet we mostly hear about bad… so… I haven’t had any problems with our 365’s yet. Been about 2 years. Still looking good.

[Archived]

If it wasn’t for the weight requirements I would never run two different size tires on my coach, ESPECIALLY a tire size that is not available any time I need one.

But a lot of coaches have been modified from all 315 tires to 365 and 315 tires.

My ass is not capable of measuring ride difference, but my 365 tires make a hell of a lot of noise going over expansion joints and the like and I wish they were as quiet as the 315 tires were on a previous coach.

[joel]

Jon

our 40 footer came with 365’s on steer and tag ( don’t know why other than last owner wanted them). We don’t seem to feel or hear them as being noisier. But boy howdy are our drive tires noisey. They are Michelin XDN Grip 2’s. Aka snow tires

---

1999 XLV X-6872,  liberty #440

[Andre]

Changed the steers only to 365; like the ride. On my second set but have not needed an emergency replacement. Did need to replace a 315 in an emergency and took a used 295.

I’m a bit of a fatalist in this regard but I do check pressures regularly and check for foreign objects in tread every 10K. Actually spotted a sidewall problem on a 315. I’m actually running 365, 455, and 315’s. If you read the forum, seems like most of our issues are not tire related.

[AL]

Thanks for the replies. All good points and very much as I expected.

I had 365s steer and tag on my last bus (had been changed prior to me buying) but I really didn’t notice the “noise” that people are referring to.

I’m just concerned with the 2 different sizes, I do recognize the weight advantage however.

[Archived]

I will not profess to having the skills to measure ride quality differences or noise levels, but one thing I do have is the ability to hear things far better than some folks.

When we bought our current 365 tire equipped coach (they were standard) after putting over 100,000 miles on the previous all 315 coach two items relating to noise were evident.

First, the shell or chassis was significantly quieter. At highway speeds the sound of the engine was muted, and the small creaks and groans of the chassis were much less or gone, which really surprised me because the previous coach had no slides.

But what I was not prepared for was the increase in sound level as a steer tire hit a bridge or highway expansion joint or a short temporary rough spot in the pavement. I sensed an echo in addition to the loud clunk as the tires passed the noise maker.I cannot say that is the difference on all other coaches between 315 and 365 tires, but I attribute the added noise to the tires, when in fact it might be something related to the air bags, shocks, or even engineered into the chassis.