How to avoid the road bike physique Due to a house move I am soon to become a road bike commuter with approx. 18 miles to cover. I could do with loosing a few kgs but am worried about developing the emaciated physique so apparent in many of the road bikers I see. How can one avoid this? Is it simply a product of the high endurance aspects of road cycling over longer distances, or a combination of that and excessive dieting? I have been a mountain biker for over 10 years and have found that it helps one build muscle mass in the upper thigh and arms and shoulders. Any advice on how to avoid the skinny road biker look would be greatly appreciated.
This would be a great problem to have for most of us roadies. Simply eat more if you find yourself losing more weight than you care to lose.

You can alternatively balance with more strength based exercises like lifts, pulls, rows at the gym or elsewhere. 

Or cake.