This will fit '09-'15 RSV4 and '11-'16 Tuono for sure. I believe it will fit '16-'19 RSV4/Tuono as well. I bought this to put on my '16 Tuono RR. I already have an Ohlins from a Factory Tuono on my bike and don't have the desire to do the swap. Ohlins TTX36 AP8321 - No leaks, excellent condition. It is a 'fresh' shock from previous owner. 110 spring rate. $625 shipped