63cm Cannondale C9 Alloy frame with a SMALL dink in the top tube.
I don't think I have seen a 'dink' this big, ever.
http://www.ebay.co.uk/itm/Cannondale-C9-EN14781-Ultra-Light-Aluminium-Bike-Frame/291743376335?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D36381%26meid%3D71405879c5f64cb09eeaa2a83a83dabf%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D152066388741
'Doesn't affect performance' - apart from the high likelihood of it shearing in two when you hit a pothole.
@dglshrn started
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63cm Cannondale C9 Alloy frame with a SMALL dink in the top tube.
I don't think I have seen a 'dink' this big, ever.
http://www.ebay.co.uk/itm/Cannondale-C9-EN14781-Ultra-Light-Aluminium-Bike-Frame/291743376335?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D36381%26meid%3D71405879c5f64cb09eeaa2a83a83dabf%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D152066388741