yeah, I used to have to spin my 10" overs on a regular basis.

http://s678.photobucket.c...v150/HONDACHOPPER/CB750/ there's an old chopper mag rticle in there about springers....may help a little.

also, like angelo said.....slidng a tube inside......didn't one of the old builders used todo that??? slid a peice of chromolly inside a peice of mild steel.....