The 2021 Aprilia Tuono 660 has 1 NHTSA recall campaign affecting an estimated 308 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 1 complaint with NHTSA, most often about the fuel/propulsion system. Last updated July 5, 2026.
Aprilia is recalling certain 2021 RS 660 and Tuono 660 motorcycles. The engine crankshaft connecting rod may break due to improper heat-treatment.
A broken connecting rod can cause a sudden engine stall, increasing the risk of a crash.
Dealers will replace the engine, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact Aprilia customer service at 1-212-380-4400. Aprilia's number for this recall is PA2ZZQ2107.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“I purchased the bike in feb 2023 and the fuel gauge has gone bad. Problem is wide spread with this and I have seen and documented people having the same issue with the whole line of their bikes. I believe since this was part of the gas tank and the tank could possibly leak where the float sensor…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Aprilia Tuono 660 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.