Brake calipers

[GrahamB]

I forget which way this goes but some blue spots have external pipe linking the 2 halves of the caliper casting, others have internal link. Some have flat/flush hose fitting, some on an angle. Sometimes you can get away with the wrong ones depending on your bike & the hose's. The silver inner with blue surround must indicate one of the above but I can't say which.  :\