Thorn Cycles Forum
Private Classified => Bikes For Sale => Topic started by: in4 on December 01, 2015, 01:32:35 PM
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http://www.ebay.co.uk/itm/SJS-Thorn-Audax-Mk1-Classic-Gents-Road-Touring-Bike-23-5-Reynolds-Mix-Rare-VVGC-/111836727879?hash=item1a09fd0a47:g:6E8AAOSwv-NWW0hE
Quote: The Large-size 23.5" (60cm) (22.5" C to C)
Not sure what that measurement refers to.
not mine.
Below is a screen grab / size matrix from 2003 that might help. E&OE