Fastest speed achieved on a modified (non-road legal) sports motorcycle (female)
- Who
- Erin Sills
- What
- 381.857 kilometre(s) per hour
- Where
- United States (Bonneville Salt Flats)
- When
- 28 August 2019
The fastest conventional motorcycle speed (female) is 381.857 km/h (237.274 mph), and was achieved by Erin Sills (USA) at Bonneville Salt Flats, Utah, USA, on 28 August 2019.
Erin set this record while riding a BMW S1000 RR motorcycle.