As pie is now officially classed as a serving of fruit on this forum and hence healthy- any distance that entails a bike ride qualifies for pie. The problem comes about in that if a second helping is taken- Then extra miles have to be done to work off the carbs in the pastry- and 25 miles will just about do that.

Exception is chocolate pie and if you eat just one helping of that- then a minimum of 50 miles has to be done for chocolate pie- Even if it is done on a Roubaix.