Joined: May 2008
Posts: 10,105
Likes: 2,755
From: Fredericksburg, Va
Bikes: ? Proteous, '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, 'Litespeed Catalyst'94 Burley Duet, 97 Specialized RockHopper, 2010 Langster
[MENTION=9425]madpogue[/MENTION] nailed it. Your frame was not designed for a 130 spacing. It is luck and good fortune for those frames that can accept the modification.
You also need to be aware that there is enough clearance for the chain to jump from the smallest to the next without hitting the seat stay. It may fit with the chain on the smallest sprocket and then not be able to get by the seat stay. I imagen some will bend or crush the stay to get the clearance/
__________________
Bikes don't stand alone. They are two tired.