Regarding the role of motorbikes at Giro d’Italia yesterday:
When drafting behind a Moto, wind-tunnel calculations at 54 km/h and ~472 W showed estimated time gains of:
• 1 m distance from moto → −17.5 s/km
• 5 m → −9.0 s/km
• 30 m → −2.7 s/km
• 50 m → −1.6 s/km