In a message dated 12/22/2003 10:38:40 AM Eastern Standard Time, wspokes@penn.com writes:
> I believe you can also tell by looking into the seat tube, doesn't SL have rifling type? Correct me if I am wrong or
> inform me.
SLX and TSX are rifled, but not at the top of the seattube. SL is smooth for the entire length of the tube. Size of the seatpost for a tretubi that is SL will normally be 27.2 too, indicating a wall thickness of .7 mm. Cromor and Aelle use a thicker tubing and therefore, smaller seatpost. Of course, you can butt or ream most tubes to 27.2 too, but I don't think very many builders did that for cheap tubing. Lou Deeter, Orlando FL