2021 Aprilia RS 660 — Should You Buy One?
Typical asking price: $8,500–$11,500. This is one of the more reliable vehicles in its class — here's what to watch for anyway.
Kestrel Take
A modern, light, twin-cylinder sportbike that's genuinely brilliant to ride and refreshingly usable. The tradeoff is Aprilia's thinner US dealer network and pricier parts. Newer, so long-term reliability is less proven; verify software updates, dealer access, and any crash history.
Known Issues for the 2021 Aprilia RS 660
Ranked by wallet impact. These are documented, recurring problems — not freak accidents.
Aprilia's US network is thin and parts/service cost more; verify local support before buying.
Repair cost range: Reflected in downtime
The feature-rich electronics can need updates; verify the software is current and all rider aids function.
Repair cost range: $0-$500
Inspect for crash scars and track use.
Repair cost range: Varies
Less long-term data; remaining warranty is valuable.
Repair cost range: Varies
Walk-Away Red Flags
- ✗No dealer within reach
- ✗Outdated software or faulty electronics
- ✗Crash damage
- ✗Salvage title
Good Signs
- ✓Local Aprilia dealer
- ✓Current software, all aids working
- ✓Undropped, remaining warranty
Found a specific Aprilia RS 660?
This page covers what goes wrong on the 2021 Aprilia RS 660 in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.
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Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.