Many of the OEM tires are just not made very well, far more than is usual in most other reasonable quality 'real' car tires, and one of the symptoms of that poor manufacturing in Kendas can be abnormal tread wear &/or road noise! Many of us have ditched the OEM tires for this and other reasons, discovering significant additional benefits along the way, with few, if any, drawbacks to doing so; and I cannot recall
too many who ever regretted doing it.
With the sort of milage you've already got up, you too could do a lot worse than change to a suitable alternative quality a/mkt tire, something that's not a Kenda, a Kanine, XPS, Arachnid, or any of the other Kenda clones - and once you've gone for a quality a/mkt tire, that'll likely be capable of carrying something closer to twice or three times the weight/load of a Spyder at 28 psi, then run them at a 'much more appropriate for the significantly lighter load pressure - about 18 psi suits the vast majority, and you too could reap the benefits in all aspects of tire performance that so many others have done already. Or you could keep on chasing your tail looking for a potentially un-resolvable tire issue - but there's a reason sooo many Spyder riders have stated here something like '
Why didn't I change the tires sooner?' &/or, even if they didn't publicly admit it, have quietly kicked themselves for continuing to waste time trying to resolve issues with the Kendas &/or wheel alignment, front suspension, noises, poor handling, and more, only to discover their tire issues
ALL disappeared once they fitted 'real' car tires & ran them at an appropriate pressure!
Still, if you want to persist, I'd very carefully check your tires - are there any bulges &/or obvious defects in their manufacture (check for 'out of round', bulges, &/or 'radial run-out' - a simple check by spinning the tire with a brick placed very close to each of the sidewalls and then the tread face so that you can watch for any variations in the small gap between the brick & the tire can be very revealing); and check to see if the tread wearing evenly, both at the same even rate right across the tread face, and with no 'saw tooth' or 'heel-toe' edges on the tread blocks anywhere - just gently running your hand around the circumference/tread in each direction to feel for sharp &/or raised edges on any tread blocks can help with that. And if you can't find anything obvious, and you happen to know someone local with a Spyder who'd let you swap front wheels with them for a quick ride in order to compare the noise levels on both Spyders, preferably someone with a/mkt tires fitted, but even if they still have the OEM tires fitted, that
juuust might be enlightening too!?
However, just cos you think the noise is coming from the front tires, don't discount the rear tire or something else completely either!! Like most vehicles, noises can resonate thru the frame and body and apparently come from one end when they're actually being caused by something else in a completely different place!! So it might pay you to carefully check everything else that might be causing that noise too - the wheels & tires; the brakes & brake rotors; the inside of the fenders (are the tires rubbing?); both the sprockets; the belt; any belt vibration dampener (if you've got one fitted) and anything else that might cause or contribute to the noise.
And here's a thought, some Spyders with that sort of milage up have had wheel bearing issues, especially (but not exclusively) on the rear axle and even more so if the rear tire has ever been changed, regardless of type, and there's a lot of things besides the tires that can make or contribute to a road noise that might seem to come from the front tires. Plus, there was even a time on the 2020+ Spyders when the front pulley was replaced on demand because it was making noises, possibly like those you're hearing?? Apparently, the different body shape meant air flowed thru/over the holes in the pulley in a way that made a different noise. That noise was largely overcome, or at least subsumed, by all the other front pulley issues and recalls etc, but it shouldn't be excluded as a possible noise source if your Spyder still has a black front pulley - IIRC, the replacement pulleys for the noise alone where all White, while the recall pulleys are all Grey! Worth checking them out too!
Good Luck!
Ps: Those Kanine & even the latest XPS tires are still just Kendas, basically made on the same lightweight, poorly quality controlled carcasses, only maybe with different tread patterns, depending upon their label. There's other clones out there too, Arachnids et al come to mind, but they're all still pretty much the same old same old the Kendas, with all their inherent issues.
