Hey - did a search and came up empty so here goes: I'm looking to upgrade to 31.8 bars for 06' with a 31.8 stem, but weight is a factor and so is rise. I have an 05' 888RC w/ Go-Ride Lowerider Crowns, and am concerned with the stem sitting too low and having the bars twist upon impact and hitting/damaging the adjusters at the tops of the stanchions. I don't want to run direct mount, because I like the idea of certain components having some "give" in the event of a crash. Currently I'm running a 30mm Diabolus stem which is a bit on the short side for me (med. Demo 8 cockpit) but the 10deg rise is perfect. I already have the stanchions extended as far as I'd like them to be (from top of crown to the top of the stanchion just below the adjuster is 5mm) A 50mm Diablous stem is too heavy(250g), for my ride so that's out. I was looking at Thomsons' X4 stem: it's 173g, and comes in a 50mm length, but it has 0deg. of rise. If I got the new X4 from Thomson and put at least 1, spacer (15mm) underneath it, would that be O.K. for DH and FR use? Would this create a weak spot on the steerer?