I ride 60. I don't think this is your performance road bike, but you could still keep it and build it up for other types of riding. A 60 won't have much difference in TT length than a 58cm (typically) so it may still "fit". It would be more of a "French Fit" as they say.
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear