I fear this is another question that we won't be able to answer....

TBH, I'm not convinced this post isn't a wind up, mainly because of this statement by the OP:

I want to stick with tyres with foam inside because the resonance without foam in the tyres was absolutely dreadful.

Seriously?, the above reads like the OP is "mansplaining" to a partner (who knows no better) why they have to spend extra money on foam filled tyres! ;-)

In all honesty, I wasn't aware that foam filled tyres were "a thing", but a brief search on the pros and cons comes up with quite a few sources stating that (and bear in mind the OP wants a "quiet" ride) foam filled tyres result in a poorer ride. And while that might not directly result in more noise, a poorer ride (than what is already going to be quite a poor ride) is probably going to result in more squeaks and rattles from the car in general. It is also more likely to result in more wear and tear on suspension components already having a hard time simply through the tyre dimensions. It also seems to be the case that a foam filled tyres is going to be heavier than an air filled tyre, so that would no doubt contribute to the detrimental ride as the extra weight would be entirely "unsprung", which is never a good thing when it comes to ride and/or handling.

In the case of an an ultra refined and quiet luxury car, you may notice a difference in noise levels between air and foam filled tyres, but the notion that the OP is actually able to determine, in a Honda Accord of all things (very reliable but not that refined or smooth riding, especially on big wheels) which of the noises heard while driving is specifically due to resonance through having air filled tyres is absurd.

If the OP actually does want a quiet ride, getting more sensible sized wheels and tyres would be a way more sensible option.

Edited by badbusdriver on 02/06/2025 at 13:55

There is another way.

Friend of mine had a Golf GTD, sat on 35 aspect tyres, costing a kings ransom each, i only went in the car once and that was more than enough, the noise and ride awful, yet the same shape family Golf sat on 205/55 x 16s is quiet and refined.

If the Honda were mine i'd be investigating some more sensible sized wheels from another model, permissable alternatives are usually listed in the handbook and might be on the tyre pressure label, i'd be hoping for something on a 16 (17 at most) wheel with 55 or higher aspect, all season on those aspects will be like a silent magic carpet ride in comparsion and usually but not always cheaper sizes, the 19s will sell easily to someone who puts image above comfort....just be careful the smaller wheels will clear the brakes if your model has larger brakes than others of the same model.

When I was due to change my Mazda3's previous set of 205/55 R16 tyres back in 2018, I also needed to repair/replace one alloy (with the others starting to go the same way) because it was corroded and leading to air leaking out of that tyre.

I found that it only cost about an extra £100 to 'downgrade' my wheels and tyres to 15in (195/65 R15 tyres), and that included using OEM alloys, which were about 70% more expensive at 16in than 15in. The tyres were about 40% more (fitted).

The ride quality improved at little discernable drop in handling ability of the car, plus they are a bit less susceptible to damage because of the ~15mm higher tyre sidewalls. Wearing quite nicely.

Going from very low profile 19in to 17in (it could take 16in, but many cars of that size start at 17in, especially for upper trim / performance ones with larger brakes, probably 18in) would improve the ride quality quite a bit and make the tyres far less susceptible to damage, which as we all know can be very easy these days with our poorly surfaced and busy roads. They'll and the likely last a good deal longer and give better mpg.

The (much) cheaper price, longevity, higher mpg and reduced suspension parts replacements would more than pay for itself and the replacement alloys (even new OEMs / equivalents) over a reasonable period.