Hi Kayla
I'm sure you've seen the Bike magazine tyre tests the last 6 months or so where they've included the road attack. I have one on the back of mine, because it was very cheap off e-bay and I commute on the TRX when it's sunny (KTM for rainy days...). I got a 170/60, which improves the steering.
It has done a couple Rockingham trackdays (too lazy to change to the spare wheel with the Hi-Sport Race 2 on...) where it had no problem outrunning most of the pack, with nary a wiggle or slide, and no cold tearing or liquefying itself (see avatar pic ----->

). As you may have read, they have a very deep tread, so are good for commuting and wet weather. That said, based on the reviews I've seen, I don't know if I'd buy one for the front due to apparent effects on steering. Plus, IMHO, as someone who's owned a TRX for 11 years now, I find a good front goes a long way to make up for the relative crapness of the forks. Plus, obviously front tyres are much cheaper and last longer than rears.
If I were you, I wouldn't have any hesitation about fitting Road Attacks IF they were cheaper than a set of Metzeler Roadtec Z6s (Mine was about £30 as a part worn with about 100 miles on it). I have been using my rear road attack with a Metzeler Sportec front with no handling problems at all, so I suspect any recent Metzeler or Pirelli front boot should also match it, if you just wanted to go the rear tyre route.
I know where you're coming from on the BT090s - had an 010 on the back of my KTM Duke, and it really didn't work. The tyre would cold-tear and get very vague round roundabouts just commuting, so I suspect it was made for the weight of 200kg-ish hypersports bikes and sport tourers. Put a bog standard Pilot Sport on and it's much happier.
Kayla wrote:devlin wrote:Kayla wrote:Pity you're not supposed to put 090s on a TRX...
Why? Just curious......

Because they're designed for bikes 40-50kg lighter than the TRX, and Bridgestone don't list them as a recommended fitment. Hmm, maybe I need to get the TRX on a diet...