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.
What we checked
Checked against public records, 2026-09-25
NHTSA holds 3 owner complaints for the 2021 Aprilia RS 660, and 1 recall campaign.
That is too small a record to read a pattern from, so we are not going to pretend otherwise — with numbers this low one owner moves the percentage by a lot. What has been filed is grouped under the engine (2), electrics and electronics (1). Treat those as things to look at, not as the vehicle's known weaknesses. A thin file usually means few of these were sold or few owners filed. It is not evidence the vehicle is trouble-free, and the issues below are our own research rather than a reading of this record.
One recall campaign covers this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.
Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.
Known Issues for the 2021 Aprilia RS 660
Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.
Aprilia's US network is thin and parts/service cost more; verify local support before buying.
Repair cost: Not yet priced
Source: not yet checked against public records.
The feature-rich electronics can need updates; verify the software is current and all rider aids function.
Repair cost (estimate): $0-$500
Source: NHTSA complaints filed under electrics and electronics (1).
Inspect for crash scars and track use.
Repair cost: Not yet priced
Source: not yet checked against public records.
Less long-term data; remaining warranty is valuable.
Repair cost: Not yet priced
Source: not yet checked against public records.
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- ✗Outdated software or faulty electronics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
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Found a specific Aprilia RS 660?
This page covers what goes wrong on the 2021 Aprilia RS 660 in general. A free read looks at the one you're considering— it checks that seller's asking price against the market and names the issues that matter most for this exact year.
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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.
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