Best Pre-ride:  Doppio; 185mg caffeine, 6cal, 0.4g protein, 0.8g carbohydrate, 0.2g fat.

Best Mid-ride:  Medium americano (with a splash of skimmed milk); 277mg caffeine, 18cal, 1.6g protein, 2.6g carbohydrate, 0.3g fat.

Best for recovery:  Medium mocha (with full fat milk); 75mg caffeine, 301cal, 10.7g protein, 57.4g carbohydrate, 11.3g fat.

Sources: Bikeradar and Sprutge