Rack Rail Size
When the size of the rail of a rack is given, for example, 8 mm, 11 mm, etc, what exactly is that measurement? Is it the circumference of the rail, side to side distance?
Btw, does the Ortlieb backroller classic waterproof bag's hooks fit onto Topeak (Explorer) racks without adaptors? Thanks.
Last edited by Easy Peasy; 08-31-11 at 08:47 PM.