well, most people don't usually go past 130 mph. the h rated tires are limited to 130 mph. so unless u or someone u know may pass 130 mph on ur 855t, then the re950 is ok.

the stock oem michelin pilot hx mxm is a reasonably quiet tire, although expensive...and the inner front tire lights up real easily if u step the gas too hard coming out of the turn/corner. personally, i'd go for the best traction summer tires, and swap the winters on when the time comes. there is the bridgestone re92 also.

if u wanna give it another shot, go to tirerack.com, and click on the tires tab near the top. there's a section in there that's "tire decision guide"