That’s interesting, Dusterdude. The ‘20+ RT models have improved cornering capabilities over the stock pre ‘20 models to the extent that many riders moving from the pre ‘20 RT do not feel the need to install an upgraded anti sway bar. From my perspective, it looks like aftermarket shocks like Wilbers or Elka with their adjustable dampening, or the MTV front springs that Troop mentions would be your best first option to “cure your ills” with your current lack of dampening/jarring.
I installed shocks from a local Aussie manufacturer (Ikon) and they made a significant difference with dampening, but they still jar a bit, even on the softest setting, compared to stock. But I simply could not leave the stock shocks on as they were constantly bottoming out (I’m 6’7”, 310 lbs).
Pere
I think your size might juuuust be making
that bit ^^ a little more of an issue than it might be for most tho Pete

and I suspect that you probably would
still experience some jarring issues regardless of the shock &/or the coil because of that regardless of what brand/spec suspension components you might fit!
Mind you, it's not that the Spyder's fairly limited suspension travel makes it all that easy to stop the jarring
completely for anyone via suspension components alone - there's just not enough suspension, travel, &/or shock/coil length to do that really well, but that's where the right tires run at an appropriate pressure can help soften things up
A LOT!! nojoke
The OEM Kendas are a fairly lightly made, relatively low-profile tires that
NEED what is really quite a high pressure simply to carry the load the Spyder imposes on them, even if the rider
isn't 6’7” & weighs in at 310 lbs!! They hafta be pumped up pretty much like an over-inflated balloon simply to carry the normal load of a Spyder; so once you add a rider, maybe a pillion, and a bit of a touring load,
of course every bloody ripple in the road or shadow of a matchstick that you ride over will get abruptly transferred into the suspension; and since
that's ONLY got about 3" of play to damp all those impacts down & minimise the jarring, it's no wonder that the OEM tire/suspension combination just can't handle doing that for anyone who pushes the envelope in any way! :yikes:
So that's where a 'stronger' construction tire with a higher profile that only needs maybe 1/2 the air pressure inside it to carry the same load can make a
MASSIVE difference!! I've seen more than one Spyder that's kept on repeatedly blowing OEM &/or very expensive a/mkt shocks & upgraded coils while running OEM tires that just haven't blown a shock since fitting higher profile tires and running them at an appropriate lower pressure, despite everything else remaining equal!! Not too long ago, I had a repeat visit from a fella I convinced about 3 years ago to fit a set of Michelins - 175/65R15 up front and a 215/65R15 on the rear, and then to run them with cold starting pressures of 18 psi all round; who is also running with some pretty expensive a/mkt shocks & coils; and who is still chuffed at how great his ride & handling is now, cos instead of having to get annual rebuilds on his shocks like he was when he was still running on the OEM tires, he just hasn't needed to do that even once since
and he's doing a lot more miles each year than he was before too, simply because now that he's running a/mkt tires at a lower pressure that that the OEM tires
need, his bike feels and works so much better because the tires and their pressure allow them to work
with the suspension, instead of transferring all that jarring and helping to hammer the suspension to death! nojoke
All of which adds up to very likely meaning that
anyone's ultimate solution is very likely to involve any/all of uprated shocks; coils; an upgrade to the anti-sway bar;
AND most importantly, but not necessarily exclusively, a/market stronger & higher profile tires that you can run at an appropriate (lower) pressure for the given load - and btw, apart from Pete, I've yet to see too many people/Spyder owners/riders who actually
need much more than 18psi in any 'real' car tire fitted to their Spyders! :lecturef_smilie:
Just Sayin'!

hyea: