I've scored some trees off a KTM to put on a 86 Sportster.  The KTM's frame rake is 63.5 deg and the Sporty is 29.6. (I think). Will it work on a Sporty? The tree Stem fits straight  into the HD frame neck. The bearings O.D is spot on but I.D. is different, no probs there, bearings to suit will fix that.? I think the stem is long enough, but I'll have to get an expert to check it out. The KTM wheel I'll eventually get is a 21".  But my main worry is degrees. Any thoughts on this?