SBP vs. BBP

you can buy 15'' rims for both, though there's not as much variety/styles for the sbp

And the other thing would be wether you really like the 4 piston disc or the single piston disc brake setup.

You get a bigger ball joint for the bbp, but the small joint has never shown me any disadvantage, yet.

Maybe weigh the early disc against the newer disc setup to see what weighs more, I think 4 piston calipers being heavy then consider the slider bracket of the new style along with the caliper itself instead vs bolting straight to the knuckle.

just thinking post.