Tazzel, I'd guess that there is something significantly wrong with your Spyder's Nanny, its brakes, &/or its tires!! :shocked: There also might be an issue with your suspension, Power Steering &/or wheel alignment, but that shouldn't be the
cause of you problem so much as just making it harder for the on-board systems to counter!
If the Vehicle Stability System (VSS), Anti-lock Braking System (ABS), & Electronic Brake Distribution System (EBD) are all working properly & your tires are behaving the way properly constructed & designed tires should, then you
WILL NOT get any fish-tailing while braking, no matter how hard you brake, cos those systems & the tires are all designed & tested to work well together to stop just that sort of thing!! Dodgy steering input via an out of whack Dynamic Power Steering System or poor wheel alignment might make it harder for the other systems to keep it all under control, but the systems have all been designed to manage their job correctly despite a fair degree of poor inputs from any of those, like a blown tire, broken pwr steer, etc.... :dontknow:
So I reckon you've got something wrong with one or more of those things mentioned above, & your Dealer is probably the first place you need to see to get this sorted. In the meantime, your Spyder probably isn't safe to ride at all!! A significant failure in any or all of those systems/components could result in an uncontrollable accident, & until you know what it is & to what degree your Spyder's control systems are comprimised, you probably shouldn't ryde it!! :lecturef_smilie:
Ps: if you are still running the OE Spec Kendas, there are
SERIOUS doubts amongst many in the Spyder Ryding community about their manufacturing quality & many of the 'sub-standard construction features that I've seen in them could well be the primary cause of your issues and any accident that might result. If it isn't rapidly clear that one of those other systems is the cause of your issues, you might want to seriously look at throwing the OE Kendas away & fitting a better quality car tire & running it at the correct pressure for the load your Spyder places upon it!! That pressure will likely be somewhat lower than the recomnended pressures for the OE Kendas, which are lightly constructed soft compound tires that require higher pressures to enable them to work as intended, but those lower pressures should be well within the capacity of the car tire to manage safely & work well!
Good Luck! :thumbup: