Thanks for the replies. I've looked at the chart on SB's website, but I haven't had a chance yet to pull the tires off and measure the rims. According to his chart, it would seem that the BA's are not an option on the wheels I'm currently running--the stock tire is a 32, and no rim (on his chart) gets a green x for both 32 and 50.

Guess I'll go a little bit thinner, unless somebody pipes up with other experiences/suggestions.

Thanks again!