The ST seating position is a little more 'aggressive' than the RT, if that's the right word - there's a pic around showing a comparison of the various angles of knees, arms, back etc which might explain it better (can anyone/someone who's got it post it up or link it please?) I've been lucky enough to spend some time riding all the Spyders (except the latest 2016 F3's), so if you are interested in my take on them, read on! :thumbup:
Basically the RT is the comfort based upright armchair type tourer with std features that make it the ideal 2-up tourer while still being a great solo ride; altho if you aren't too much over 6ft tall & you get the RT with foot plates instead of pegs, you can move your feet around readily on the plates from tucked right back & crouched a bit for spirited riding right thru to having your feet a little forwards & relaxed, plus with the addition of highway pegs, you might even be able to get into the feet-up recliner position, altho with all those the handle-bars & their position does come into play! Riding one of these can as relaxed & gentle as you like, altho always with more of an upper body involvement than you'd get on a 2-wheeler; but if you want you can exert yourself a little more & put more upper body 'english' into it so you can ride them quite spiritedly, using more effort & pressure from your inside arm to pull on the handle bar & more outside leg pushing on the footplate to get your weight right across & down behind the inside mirror so that they will corner like a rocket sled on rails, but it's always going to have a higher CoG & more static weight than the others to punt around.
The ST has a little more of an upright but still semi-sporty seating position & it has the ready option of panniers/saddlebags & back cases etc, so it can be a comfortable solo or 2-up tourer while still being a bit more sporty than the RT if you want it to do that - and of course, without all the extra tupperware on the rear, it's noticeably lighter & rides a tad quicker plus responds & performs accordingly (unless you option it up to the hilt & add back all the extra weight!) Riding generally entails that same level of upper body involvement as they all do, and these are always going to need a little more outside leg work for spirited riding, but they can be as gentle or as much of a work out as you like or are prepared/capable of!
The RS is a touch lower overall, & is aimed much more towards those who like the solo sporty part-crouched seating position with a pillion seat that will take a passenger in that 'sit-up & beg' position many sports bikes have. They don't have quite the options or std fittings the RT & ST's can have, but of course there are aftermarket options that will bring them up to much the same level of appointment if you'd like all that to go with the sporting part-crouched riding posture. They are the most 'aggressively sporty' Spyders in the line up, and can take a tad more to ride than the others as a result; altho they still can be ridden gently if you like to do that with the more sporty riding position, it's just a lot easier to push a little harder & ride them more spiritedly (don't forget you've got someone perched on that pillion seat tho - altho it'd be pretty hard not to notice them up there, unlike on the RT & the ST).
The F3's, at least those that aren't the 2016 F3-T or F3 Ltd's anyway, are really aimed at the solo Cruiser market with an almost grudgingly provided pillion seat; so all F3's have the feet forward & low seating position that most Cruisers have - and that means that instead of having the mainly upper body involvement in riding that all the other Spyders entail, the F3's generally take an 'all of your body' effort & riding experience. Being seated lower & so that you are always sorta pulling on those bars while still having your feet & legs extended, you pretty much
need to involve more lower body & leg work in the ride to do anything much more than toddling around the place or boulevard cruising, and honestly, the F3 almost
demands that you give it a bit of stick every now & then! Add to that the U-fit options that range from the forward crouched Attitude or shorter handle bars thru to the fully laid back & longer handle bars, if you like the low feet forward seating style of riding you will almost certainly be able to set it up to suit your preferences. The 2016 F3-T & Ltd's add more luggage space & better pillion seating plus some changes to the rear swing arm to ease the option of towing, so they look like they might be a reasonably comfortable 'Cruiser style Tourer' while still giving you the same basic riding experience that all the other F3's entail.
All that said, riding ANY of the Spyder's in the range is likely to be a great experience that is close to but slightly different to that of riding a 2 wheeled motorcycle, the saying you see here often is 'More miles of Smiles' & it's really pretty much true!! Whatever riding style you have or want - gentle & laid back; fast & sporty; and anything in between, there's a Spyder to suit you! And once you start adding the 'farkles' to make it better suit you or just to show everyone it's yours & it's unique, the smiles only grow bigger!!
Of course, YMMV, but for what it's worth....
