The new Aprilia Tuono V4, the naked version of the Aprilia RSV4, has been spotted testing at the Mugello circuit in Italy.
The new Aprilia Tuono and the Aprilia RSV4 R - the base model to the more expensive RSV4 Factory - were both being tested.
Both models are based on the current Aprilia RSV4 Factory, but look set to feature lower-spec components to keep the price down.
Check back soon as we'll be bringing you more news on the Aprilia Tuono V4 and RSV4 R as it becomes available.
Picture by Claudio Santelli.