The 2021 Aprilia Rs 660 has 1 NHTSA recall campaign affecting an estimated 308 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 4 complaints with NHTSA, most often about the electrical 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.
“The contact owns a 2021 aprilia rs660 motorcycle. The contact stated while riding at 80 mph on a closed track, the contact was approaching a left turn when attempting to brake but the electronic control unit of the braking system did not work which caused the motorcycle to cartwheel and crash…”
“The contact owns a 2021 aprilia rs660 motorcycle. The contact stated while riding at 80 mph on a closed track, the contact was approaching a left turn when attempting to brake but the electronic control unit of the braking system did not work which caused the motorcycle to cartwheel and crash…”
“The contact owns a 2021 aprilia rs 660. The contact stated that while driving 75 mph, the vehicle began to make an abnormal vibrating sound as the alarm pressure warning light illuminated. Due to the failure, the contact initially had the vehicle towed to his house, and then the dealer informed…”
“The contact owns a 2021 aprilia motorcycle. The contact stated while riding 30 mph, the motorcycle abruptly stalled. The contact was able to restart the motorcycle and rode to the dealer. The contact had not received a diagnostic report. The contact stated that the motorcycle had been taken to the…”
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 Rs 660 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.