Possibily not of any help at all, but there it goes..
I have no clue how those argues are settled in the US, but in Europe (in the Netherlands) the first responsibility (liability? warranty?) of products are transferred to the last company who sells the product.
In short:
the DEALER sold you the bike, so THEY are the ones who should fix it (or have it fixed). Also, when the factory's warranty is over, then the seller still has his (partial) responsibilty.
We call it "consumer's rights".
As an example: a dishwasher has a factory warranty of 2 years.
Our (Dutch) government states that it has a "technical lifespan/operating life" of (for example) 10 years. So in 10 years it's completely written off.
This means that in the first 2 years, all damages (not caused by the user) should be paid by the seller (or producer, it's up to them who will fix it). After those 2 years, the responsibilty will gradually transfer to the buyer. After 5 years the costs, when it's a production fault, will be devided by seller and buyer (50/50). After 10 years, all costs are for the buyer/owner.
Bottom line: you have to hold them responsible and have your claim formally stated on paper (proof). Especially when the bike was new when bought.
Most dealers will cooperate when you say the magic word "legal liability". Well, that's how it works over here, at least.
Don't you guys have something similar?
I understood that in the US, liability is a much bigger issue than over here.