|  01-Feb-2006, 15:02 | #10 | 
  |    Registered Forum User Big Twin    Posts: 1,001 Join Date: Nov 2004 Location: Chorley       Quote:   | Originally posted by keith_mann1959 Yes i agree, i've always thought its the way their backs curve concave rather than convex when they sit on a bike. Not 100% reliable but damm near.
 |   Oh God im a Woman  |