Back when I was still running the OE spec Kendas & was spending some time actually testing them & the Spyder's behaviour, once both front tires got down to around 10 psi, the nanny started to intervene with just about any change of direction (like a lane change) and it'd do that
especially on corners, even at fairly low road speeds!! Lower pressures up front made the dip/wallow/dip & repeat thing that can happen on direction changes a whole lot more frequent & significantly worse than it already was! But even after maybe 1000 miles running lower pressures & riding fairly hard, I couldn't yet measure any appreciable tread wear differences from one side of the tread across the face & into the other side using 'analogue' tread measuring devices! Maybe tread wear differences across the tread face could've been apparent using ultra-sonic or laser tread depth measuring devices, but I really can't see the degree of wear difference shown in the OP's pic as being SOLELY attributable to low tire pressures, OR solely attributable to cornering too hard! There's just not enough tread visible in the pic nor is what we can see clear enough to draw those sort of conclusions :dontknow:
I could believe that maybe the level of wear seen might arise from A MIX of significantly incorrect tire pressures, incorrect wheel alignment/suspension settings, AND a WHOLE HEAP of cornering WAAAY too hard; altho from what we can see in that one pic, I think you'd also need to consider excessively high tire pressures (as well as excessively low pressures) and a LOT of waay too hard cornering teamed with poor wheel alignment/suspension settings in the list of potential causes! Regardless, to get that degree of uneven tread wear in less than 2K miles I reckon it'd take a lot more than any one thing short of physically grinding the tread off, and it'd almost certainly make riding the Spyder AT ALL a fairly scary thing with a fair bit of nanny intervention pretty much every time you tried to change direction!! :shocked:
But we really do need a fair bit more info & pics to give any meaningful advice beyond 'the dealer is feeding you a BS answer' - maybe they're doing that in the hope that you'll go away & leave them alone?! Maybe they stuffed up big time & want to get rid of you quickly, or at least get you to pay for them to fix their stuff up; or maybe it just looks all too hard for them to even want to try & fix it?! Whatever the reasoning behind the BS answer might be, we need more info & better pics to give you anything more helpful... :dontknow: So whichever way we look at it, the ball is squarely in the OP's court.......
Ps: I still think that if there's any way for your Spyder to be Squared Away, you really should do it!! Sooner rather than later, & certainly before destroying any replacement tires! :thumbup: