Aprilia RS 660
Every consumable spec for the Aprilia RS 660, each fact sourced, dated, and shown with the source it came from. US-market reference — verify against your owner's manual.
middleweight twin supersport · 2021–present · 659cc 270° parallel twin
Trims & editions
- Trofeo (race-only) — a non-street-legal customer race bike with different brakes (race-spec calipers/rotors); outside this site's road-legal scope, not covered by this sheet and not a candidate for its own entry.
- Extrema 2023–2024 — limited edition (SC-Project silencer, carbon bits, solo-seat tail); chassis and consumables track the standard 2021-2024 catalog. Covered by this sheet.
Spec plate
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Maintenance – Table of Recommended Products (opens in new tab)
“Engine oil 10W-50: Synthetic-based lubricant for high performance four-stroke engines. Specifications: SAE 10W 50; API SL; JASO MA2”
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Maintenance – Table of Recommended Products (opens in new tab)
“Engine oil 10W-50; SAE 10W 50”
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Capacities (opens in new tab)
“Engine oil: oil change and oil filter replacement: 2700 cc in (164.76 cu in)”
We list the manual's 'with filter change' figure — not the dry-rebuild total that circulates online. On small engines that difference is a 25% overfill.
+1 source, quotes
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Electrical System (opens in new tab)
“Spark plugs: NGK IR MR9DI-7; Electrode gap: 0.7 - 0.8 mm (0.027 - 0.031 in)”
- NGK Europe spark plug part finder (opens in new tab)
+1 source, quotes
- EBC Brakes Direct — EBC's official direct-sales fitment catalogue and store (operated from EBC Brakes World HQ, Northampton) RS 660 (8V ABS) per-year fitment pages, 2020–2026 (ids 25000884…25068735) (opens in new tab)
“EBC Brakes Double-H™ Sintered Pads To Fit Rear Right — Part No FA266HH; Organic FA Series — FA266; EPFA Extreme Pro Sintered — EPFA266HH”
- SportbikeTrackGear — EBC Aprilia RS660 21-26 Double-H Sintered Rear Brake Pads (FA266HH) (opens in new tab)
“EBC Aprilia RS660 21-26 Double-H Sintered Metal Rear Brake Pads — part FA266HH”
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Maintenance – Table of Recommended Products (opens in new tab)
“DOT 4 brake fluid: Synthetic brake fluid. SAE J 1703; FMVSS 116; ISO 4925; CUNA NC 956 DOT4”
+1 source, quotes
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Drive Chain / Drive Ratios (opens in new tab)
“Drive chain: Regina 110 links, with sealed master link. Model: 520-135-ZRA. Final drive ratio: 17/43”
- JT Sprockets Application Guide 2024 (opens in new tab)
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Electrical System (opens in new tab)
“Battery: BS BATTERY BSLi-04 LITHIUM, 12V 48Wh 280A. Alternative solution: YUASA YTZ10S, 12V 8.6 Ah”
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Capacities / Table of Recommended Products (opens in new tab)
“Coolant: 1.8 +/- 0.2 l. Anti-freeze liquid, ready to use, colour red: Ethylene glycol antifreeze liquid with organic inhibition additives. ASTM D 3306 - ASTM D 4656 - ASTM D 4985 - CUNA NC 956-16”
+1 source, quotes
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Owner's manual Technical data (p.186 of the RS 660 book) (opens in new tab)
“Front 120/70 ZR17 (58W); rear 180/55 ZR17 (73W) / 180/60 ZR17 (75W)”
- Aprilia USA — RS 660 official technical specification sheet (PDF) (opens in new tab)
“180/55 ZR 17 (alternatively 180/60 ZR17)”
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Lubrication torques (opens in new tab)
“Drainage plug: 20 Nm (14.75 lbf ft)”
full citation
- Aprilia RS 660 - Tuono 660 Service Station Manual (2Q000453) Characteristics – Front Wheel torques (opens in new tab)
“Wheel axle M16: 65 Nm (47.94 lb ft)”
Oil capacities are the manufacturer's with-filter-change figure, not the dry-rebuild total that circulates online. Always verify against your own owner's manual before you turn a wrench — this is educational reference, not a repair procedure.
Service intervals
| Years | Oil & filter |
|---|---|
| 2021–2024 | 6,200 mi / 12 mo |
Street, track, mixed
Street
- We list the manual's 'with filter change' figure — not the dry-rebuild total that circulates online. On small engines that difference is a 25% overfill.
- Pads fit calipers, not bikes. That's why one shape number covers a Hayabusa and a V-Strom — and why the same bike model can change shape mid-generation. We resolve pads by caliper and year.
Track
- After track days, shorten your oil change. How much is genuinely unsettled — manufacturers say 'adjust to your use,' not a number. Used-oil analysis is the only rigorous answer.
- A street-legal sintered or EPFA-class pad is the manufacturer-sanctioned track-day choice. Full race compounds are for when the pad is the limiting factor — and yours isn't yet.
- RBF-class fluid buys you ~80°C more fade margin when fresh — and gives most of it back within a year as it absorbs moisture. It's a consumable you change more often, not an upgrade you install once.
- For the street: silicate-free motorcycle coolant (Honda's manuals explain why — silicates chew water-pump seals). For the track: check your org's rules — most ban ethylene glycol outright; pro racing allows water only.
Mixed
Run the street specs above, then shorten the oil interval after track days — how much is genuinely unsettled, so used-oil analysis is the honest guide. If your organisation tech-inspects coolant, check its rules before a session.
Maintenance jobs & what they cost
Oil & filter change
Beginner-safeParts — Oil spec JASO MA2 · API SL · Viscosity 10W-50 · Oil capacity with filter 2.7 L · drain not published · dry total not published · Oil filter OEM 857187 · HiFlo HF138 · Drain plug torque 20 Nm
Tools — torque wrench, oil filter wrench, drain pan, funnel, new sealing washer (if your bike uses one)
Dealer oil-change quotes run $90–130 (Harley outliers $180–280 excluded); independent-shop average is closer to $56. DIY consumables run $30–60, saving roughly $40–120 per change with tooling paid back in 2–3 changes. Sourced: CostHack / Trak Powersports / J.D. Power, aggregated in docs/research/demand-competition.md.
Some links may earn TOSPEC a commission at no cost to you. Prices shown are typical street prices for consumables (oil, pads, chains, filters, fluids) — always verify fitment and price at the retailer.
Front brake pads
Experience neededParts — Front brake pads EBC FA630HH (HH) 4-piston, 32 mm pistons (Brembo) · 2 sets
Tools — torque wrench, hex/Allen key set (caliper mounting bolts), C-clamp or piston-retraction tool, wire brush, brake cleaner
Editorial estimate, not separately itemized in the research corpus: a 0.5–1 hr front-pad swap at the same dealer shop-rate bracket implied by the oil-change pricing in docs/research/demand-competition.md, plus a $30–60 OEM/aftermarket pad set. Verify locally before quoting.
Some links may earn TOSPEC a commission at no cost to you. Prices shown are typical street prices for consumables (oil, pads, chains, filters, fluids) — always verify fitment and price at the retailer.
Chain & sprocket kit
Experience neededParts — Chain & sprockets 520 · 110 links · 17/43T
Tools — torque wrench, chain breaker / riveting tool, angle grinder or chain-link sizing tool, rear paddock stand, chain alignment tool
Editorial estimate, not separately itemized in the research corpus: a full chain-and-sprocket swap (wheel off, alignment, torque-critical rear axle) runs several labor hours at the shop-rate bracket implied by the oil-change pricing in docs/research/demand-competition.md, plus an $80–150 520/525/530 kit. Verify locally before quoting.
Some links may earn TOSPEC a commission at no cost to you. Prices shown are typical street prices for consumables (oil, pads, chains, filters, fluids) — always verify fitment and price at the retailer.
Brake fluid flush
Experience neededParts — Brake fluid DOT 4
Tools — torque wrench (bleeder and banjo bolts), vacuum brake bleeder or speed bleeders, clear tubing and catch bottle, syringe, fresh DOT-spec fluid, sealed bottle
Editorial estimate, not separately itemized in the research corpus: roughly 1 hr of bleed/flush labor at the shop-rate bracket implied by the oil-change pricing in docs/research/demand-competition.md, plus fluid. Verify locally before quoting.
Some links may earn TOSPEC a commission at no cost to you. Prices shown are typical street prices for consumables (oil, pads, chains, filters, fluids) — always verify fitment and price at the retailer.
Tires
Experience neededParts — Tires 120/70 ZR17 (58W) · 180/55 ZR17 (73W)
Tools — front and rear paddock stands, bead breaker and tire spoons (or a mounting machine), static wheel balancer and weights, valve-core tool and new valve stems, torque wrench (axle nuts)
Editorial estimate, not separately itemized in the research corpus: mount-and-balance labor per wheel at the shop-rate bracket implied by the oil-change pricing in docs/research/demand-competition.md — carry-in wheels at the low end, on-bike swaps at the high end; the tires themselves are extra. Verify locally before quoting.
Some links may earn TOSPEC a commission at no cost to you. Prices shown are typical street prices for consumables (oil, pads, chains, filters, fluids) — always verify fitment and price at the retailer.
Coolant flush
Experience neededParts — Coolant Ethylene glycol antifreeze, ready-to-use, red — ASTM D3306, ASTM D4656, ASTM D4985, CUNA NC956-16
Tools — torque wrench (drain bolt), drain pan, funnel, coolant hydrometer or refractometer, distilled water (if mixing concentrate)
Editorial estimate, not separately itemized in the research corpus: roughly 1 hr of coolant-flush labor at the shop-rate bracket implied by the oil-change pricing in docs/research/demand-competition.md, plus coolant. Verify locally before quoting.
Some links may earn TOSPEC a commission at no cost to you. Prices shown are typical street prices for consumables (oil, pads, chains, filters, fluids) — always verify fitment and price at the retailer.
Notes & corrections
Myths corrected
The number that circulates online is wrong. We checked the primary source.
Oil capacity: A 2.3 L 'stock' figure and a separate 2.7 L 'with oil cooler kit' figure circulate online
aggregator/retailer pages
The manual's own with-filter capacity is 2.7 L (2700 cc). The 2.3 L number found online appears to conflate the stock oil-change capacity with an aftermarket oil-cooler kit's added volume, not a genuine smaller factory spec.
Coverage gaps
Where the catalogues run out. Flagged in the open, never guessed at.
Oil spec: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Viscosity: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Oil capacity: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Front brake pads: EBC's own catalogue row reads 'RS 660 8V 2020-2024'
TOSPEC research
Clipped the start year to 2021 to match this site's bike-year window. The 2025 refresh is not yet in EBC's US #304 catalogue.
Brake fluid: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Chain & sprockets: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Battery: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Coolant: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Drain plug torque: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Front axle torque: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Service intervals: 2025 refresh (52 mm throttle bodies, retuned engine) not yet mapped
TOSPEC research
This manual covers the 2021 launch platform (incl. Extrema). The 2025 refresh is a documented separate generation on this site and is not independently confirmed to share these specs.
Research notes
Context from the research trail — how a fact was pinned down.
Oil filter: HiFlo's own application rows (RS 660 20-24, RS 660 4T E5+ 25, RS 660 Factory 4T E5+ 25) start a model-year earlier than this site's 2021 start
TOSPEC research
Clipped the start year to 2021 to match this site's bike-year window; HiFlo's rows collectively cover 2020 through the 2025 refresh without a gap.
Rear brake pads: EBC's rows run 2020–2026; the 2020 start is the EU launch year — clipped here to 2021 to stay inside this catalogue's US-market year range
TOSPEC research
Adversarially verified 2026-07-24: three EBC Brakes Direct per-year pages opened (2020, 2023, 2026), all listing identical rear parts. Rear caliper wording from Aprilia's official technical spec PDF ('220 mm diameter disc; Brembo calliper with two 34 mm separate pistons').
Tires: No size change 2021–2026 across editions checked
TOSPEC research
Adversarially verified 2026-07-24 against the owner's manual and Aprilia's own spec sheets (hash-matched fresh downloads).
DIY & your warranty
Doing this yourself won't void your factory warranty. The federal Magnuson-Moss Warranty Act bars a manufacturer or dealer from voiding your warranty just because you — not the dealer — did routine maintenance. To deny a claim they must prove the specific work caused the specific defect. Use spec-compliant parts and fluids, and keep your receipts.
FTC on the Magnuson-Moss Warranty Act · Full guide: dealer or DIY?
Guides for this bike
Aprilia RS 660 maintenance FAQ
How much oil does the Aprilia RS 660 take?
About 2.7 litres with a filter change — the manufacturer's with-filter figure, not the larger dry-rebuild number that circulates online. Confirm against your owner's manual.
What oil does the Aprilia RS 660 need?
It calls for 10W-50, JASO MA2, API SL. A wet clutch means the JASO class matters — don't substitute an energy-conserving car oil.
What brake pads fit the Aprilia RS 660?
The front caliper (4-piston, 32 mm pistons (Brembo)) takes EBC shape FA630HH. Pads are resolved by caliper and year, not by model name, so verify your caliper before you order.
How often does the Aprilia RS 660 need an oil change?
Every 6,200 miles or 12 months, whichever comes first, per the manufacturer's schedule. Shorten it after track days — used-oil analysis is the only rigorous answer to how much.