// Generation · 2021 — 2024

FIRST GENERATION — 100 HP EURO 5

Derived from the front two cylinders of the RSV4 1100 V4, the RS 660 launches Aprilia's new 660 platform. Announced at EICMA 2019 as a 2020 model, it ultimately arrives in 2021 due to COVID delays. 659cc DOHC parallel-twin at 100 hp Euro 5, full Marelli APRC suite (8-level TC, 3-level cornering ABS, anti-wheelie, standard bidi AQS quickshifter, 5 ride modes), 4.3" colour TFT, slipper clutch and 169 kg dry.

88
Buyer score / 100
4
Vintages
8
Changes
4
Overhauls
1
Updates
3
Minor
↘ Changes by category
M
ENGINE
1 change
2021
Launch: 659cc DOHC parallel-twin Euro 5 — 100 hp at 10,500 rpm, 67 Nm at 8,500 rpm, 48 mm ride-by-wire throttle bodies, 6-speed gearbox — engine derived from the RSV4 1100's front two cylinders
Major
C
FRAME
1 change
2021
Aluminium perimeter frame, KYB 41 mm inverted fork, KYB monoshock adj preload/rebound, 169 kg dry / 183 kg wet, 1,370 mm wheelbase, 820 mm seat height
Major
E
ELECTRONICS
1 change
2021
Marelli APRC suite: 8-level TC (ATC), AWC anti-wheelie, 3-level cornering ABS, standard bidi AQS quickshifter, 5 modes (Commute / Dynamic / Individual / Challenge / Time Attack), 3-level engine braking, 6-axis IMU — standard 4.3" colour TFT
Major
A
AESTHETICS
4 changes
2021
Full sport fairing with LED headlights, standard LED cornering lights — Acid Gold / Midnight Black liveries, launch price USD 11,299 / €11,050 depending on market
Major
2022
Stars and Stripes Limited Edition — 1,000 units, American flag-inspired livery. RS 660 Trofeo track version on sale (103 hp, 153 kg dry, race bodywork)
Minor
2023
No notable change — colours carried over
Minor
2024
Extrema variant available — track kit as standard (fairing protectors, racing windscreen, competition paint scheme)
Minor
S
SAFETY
1 change
2021
Recall for non-conforming connecting rods (Q1 2021 production, ~700 bikes worldwide, ~100 in France) — full engine replaced under warranty, no incidents reported
Isolated batch from a short Q1 2021 production run. Full engine replacement at no cost through authorised Aprilia dealers.
Medium