Bikes · middleweight naked

Aprilia Tuono 660 mods & upgrades

The Tuono 660 is the cheapest ticket into Aprilia's top-shelf electronics, wrapped in a naked that commutes Monday and does track Fridays.

2021–presentFactory-only US lineup from 2025Verified Sep 2026
FACTORY SPECSVERIFIED SEP 2026
Aprilia Tuono 660claimed figures
  • Engine659 cc 270° parallel twin
  • Power~95 hp claimed (base); 100–105 hp Factory
  • Wet weight~403 lb claimed (base); Factory ~4 lb lighter
  • Seat height32.3 in
  • ElectronicsAPRC suite with cornering ABS; quickshifter optional on 2021–24 base, standard on Factory
What fits

Parts that fit the Tuono 660

68 parts in 13 categories, with typical prices — verify fitment for your exact year and market.

PartTierTypical priceFitmentAdd to sheet
Exhaust2 fitSC-Project, Akrapovič, Arrow and LeoVince cover the 660 platform; many systems carry joint RS 660/Tuono 660 fitment but not all — the underbelly routing is shared, the tail is not. Full decat wants a tune to avoid the CEL.
Graves WORKS full titanium system track only pairs with a tunepremium$2,470fits: verified · 2021+Add to sheet
Akrapovič Racing Line full system track only pairs with a tunepremium$1,560fits: verified · 2021+Carbon onlyAdd to sheet
Tune4 fitThin mail-in culture for Aprilia — a 660-experienced tuner or the accessory race ECU path for dedicated track builds. Most street owners stop at slip-on + stock map and lose little.
Sprint Filter P08 air filterpremium$120fits: verified · 2021+PM176S, same as RS 660Add to sheet
Dynojet Power Commander 6mid$480fits: verifiedTuono 660 2021–22; Tuono 660 Factory 2025 (not 2023–24)Add to sheet
DNA performance air filtermid$110fits: verified · 2021–24P-AP6S21-01Add to sheet
BMC race air filtermid$95fits: verified · 2021+FM01117RACE, same part as RS 660Add to sheet
Suspension5 fitTrim decides everything: 2021–24 base = preload-only shock (upgrade it), 2022–24 Factory = fully adjustable KYB/Sachs (spring it for your weight), 2025+ = Öhlins from the crate. Suspension listings are trim- and year-specific.
Penske 8983 double-adjustable shockpremium$1,300fits: reported · 2021–23Add to sheet
Nitron R1 rear shockmid$810fits: verified · 2021–24Not the 2025+ refreshAdd to sheet
Andreani Misano fork cartridge kitmid$770fits: verified · 2021+KYB 41 fork onlyAdd to sheet
K-Tech Razor-R Lite rear shockmid$600fits: verifiedTuono 660 Factory only (2021+)Add to sheet
YSS rear shockbudget$500fits: verified · 2021Later years not listedAdd to sheet
Brakes7 fit
Brembo GP4-RX caliper pairpremium$3,170fits: reported · 2021–24100 mm kitAdd to sheet
Brembo T-Drive front rotor pairpremium$1,480fits: reported · 2021–24Add to sheet
Brembo 19 RCS Corsa Corta master cylinderpremium$690fits: reported · 2021+Twin discs, four-piston calipersAdd to sheet
Galfer Wave front rotor pairpremium$620fits: verified · 2021–23Grooved floating typeAdd to sheet
Brembo 19 RCS radial master cylinderpremium$600fits: reported · 2021+Twin discs, four-piston calipersAdd to sheet
EBC Double-H sintered pads (per caliper)budget$50fits: verified · 2021+FA630HHAdd to sheet
Motul RBF 600 racing brake fluidbudget$25 eBay — $24.99 checked Oct 14 (opens in new tab)fits: verifiedNon-silicone synthetic racing brake fluid for hydraulic brake and clutch systems; exceeds DOT 3 and 5.1.Add to sheet
Tires & Wheels13 fit
Pirelli Diablo Supercorsa SP V4 setpremium$560fits: verified · 2021+120/70 front, 180/55 or 180/60 rearAdd to sheet
Michelin Power Cup 2 setpremium$520fits: verified · 2021+120/70 front, 180/55 rearAdd to sheet
Pirelli Diablo Superbike slick set track onlypremium$500fits: reported · 2021+120/70 front; 180/60 rear, the alternative to the stock 180/55Add to sheet
Bridgestone Battlax RS12 setmid$510fits: verified · 2021+120/70 front, 180/55 rearAdd to sheet
Michelin Power GP2 setmid$500fits: verified · 2021+120/70 front, 180/55 rearAdd to sheet
Bridgestone Battlax S23 setmid$460fits: reported · 2021+120/70 front, 180/55 rearAdd to sheet
Michelin Power 6 setmid$460fits: verified · 2021+120/70 front, 180/55 rearAdd to sheet
Pirelli Diablo Rosso IV setmid$440fits: verified · 2021+120/70 front, 180/55 or 180/60 rearAdd to sheet
Continental ContiSportAttack 5 setmid$420fits: verified · 2021+120/70 front, 180/55 rearAdd to sheet
Metzeler Sportec M9 RR setmid$400fits: reported · 2021+120/70 front, 180/55 or 180/60 rearAdd to sheet
MOTO-D single-temp tire warmersmid$400fits: verified · 2021+120/70 front, 180/55 or 180/60 rearAdd to sheet
Dunlop Sportmax Q5 setbudget$510fits: verified · 2021+120/70 front, 180/55 or 180/60 rearAdd to sheet
Pirelli Diablo Supercorsa SC V4 set track onlybudget$450fits: reported · 2021+120/70 front; 180/60 rear, the alternative to the stock 180/55Add to sheet
Levers6 fitASV and CRG shorty levers fit; the handlebar cockpit (vs the RS's clip-ons) means mirror, lever and perch fitment differs from RS 660 listings even where everything else matches.
ASV C5 folding lever pairpremium$300fits: verified · 2021–26Add to sheet
Gilles Tooling FXL adjustable lever pairpremium$260fits: verified · 2021+Add to sheet
Puig 3.0 lever pairpremium$240fits: verified · 2021–26Add to sheet
Bonamici EVO brake lever guardpremium$230 eBay — $258.30 checked Oct 14 (opens in new tab)fits: reportedSold without adapter; needs a Bonamici adapter chosen by bar-end inner diameter (13–21 mm) or by bikeAdd to sheet
Pazzo shorty lever pairmid$200fits: verified · 2021–26Add to sheet
R&G moulded lever guardbudget$70fits: verifiedTuono 660 2021–24 (MLG0013); 2025+ incl. Factory (MLG0047)Add to sheet
Rearsets3 fitSeat: The stock seat is thin and flat — comfort seats and gel retrofits are a recurring owner purchase for commuting duty. Try seat position tweaks before spending; the 660's triangle is roomier than the spec sheet suggests.
Bonamici rearsetspremium$670fits: verified · 2020–26Same set as the RS 660Add to sheet
Sato Racing rearsetspremium$600fits: verified · 2021+Same set as the RS 660Add to sheet
Woodcraft complete rearset kitmid$530fits: verified · 2021+Add to sheet
Clip-ons & Throttle2 fit
Domino A450 race gripsbudget$30 eBay — $29.95 checked Oct 14 (opens in new tab)fits: verifiedUniversal 22 mm (7/8 in) open-end race grips, 120–125 mm, for twist throttlesAdd to sheet
ProGrip 717 gripsbudget$18 eBay — $17.98 checked Oct 14 (opens in new tab)fits: verifiedUniversal open-end race grip, 122 mm long, fits 22-25 mm bars; the RA version is 125 mmAdd to sheet
Crash Protection8 fitGB Racing and Woodcraft case covers list the 660 engine; add frame sliders and bar-end weights — naked bikes drop onto bars and cases. Womet-Tech and R&G cover the budget-to-mid ladder.
GB Racing engine cover setpremium$320fits: verified · 2021–26Uses the RS 660 setAdd to sheet
Evotech Performance radiator guardpremium$110fits: verified · 2021–242025+ not listedAdd to sheet
R&G engine case cover kitmid$220fits: verified · 2021–24Race-series pair; 2025+ not coveredAdd to sheet
R&G Aero frame slidersmid$140fits: verified · 2021+Tuono 660 Factory 2022+ tooAdd to sheet
Woodcraft frame sliders (with pucks)mid$85fits: verified · 2021–26Same kit as the RS 660Add to sheet
T-Rex Racing engine case coversbudget$140fits: verified · 2021+Add to sheet
R&G fork protectorsbudget$60fits: verified · 2021+Tuono 660 Factory tooAdd to sheet
R&G bar end slidersbudget$55fits: verified · 2021+Tuono 660 Factory 2025+ tooAdd to sheet
Tail Tidy & Billet5 fitFender eliminator is mod #1. TST-style integrated tail lights and flush signals are widely catalogued for the 660 family — the Tuono tail is its own part number, not the RS's.
Rizoma Fox license plate supportpremium$320fits: verified · 2021–26Kit PT801Add to sheet
Evotech Performance tail tidypremium$230fits: verified · 2021+Add to sheet
New Rage Cycles fender eliminatormid$180fits: verified · 2021–24Shared with the RS 660 kitAdd to sheet
R&G tail tidymid$160fits: verified · 2021+Tuono 660 Factory 2025+ tooAdd to sheet
TST Elite-1 fender eliminatormid$85fits: verified · 2021+Same kits as the RS 660Add to sheet
Bodywork1 fit
Stompgrip tank grip kitbudget$65fits: verified · 2021–26Shared RS 660 / Tuono 660 kitAdd to sheet
Quickshifternone listed yetThe signature Tuono 660 cheap win: the ECU on 2021–24 base bikes already supports Aprilia's AQS up/down kit (~$200 accessory) — it's a plug-in, not an aftermarket retrofit. Factory trims have it standard.
Nothing listed for this bike yet
Drivetrain7 fitSame tall stock gearing story as the RS 660: +1 or +2 rear teeth wakes up a tight-track or city bike. 520 kits (Vortex/EK, Driven) are catalogued for the 660.
DID ERV7 520 race chainpremium$300fits: reported · 2021+520 pitchAdd to sheet
EK MVXZ2 520 chainmid$180fits: reported · 2021+520 pitchAdd to sheet
Renthal Ultralight rear sprocketmid$100fits: verified · 2021–26520 pitchAdd to sheet
Driven aluminum rear sprocketmid$85fits: verified · 2021+520 pitchAdd to sheet
Superlite steel rear sprocketmid$60fits: verified · 2020–26RSX steel, 520 pitchAdd to sheet
DID 520VX3 X-ring chainbudget$180fits: reported · 2021+520 pitchAdd to sheet
Vortex steel front sprocketbudget$35fits: reported · 2021–22520 pitchAdd to sheet
Electronics5 fit
AiM MXS Strada race dashpremium$1,400fits: reportedUniversal dash; kits ship with a 14-pin CAN or OBD CAN+K harness; AiM claims 2,000+ supported ECUsAdd to sheet
AiM Solo 2 DL lap timerpremium$850 eBay — $899.00 checked Oct 14 (opens in new tab)fits: reportedUniversal GPS lap timer; the DL adds ECU logging via CAN/RS232/K-line; dedicated bike kits availableAdd to sheet
AiM Solo 2 lap timermid$480 eBay — $499.00 checked Oct 14 (opens in new tab)fits: verifiedUniversal GPS lap timer; no ECU connectionAdd to sheet
Starlane Stealth-5 lap timermid$460 eBay — $465.40 checked Oct 14 (opens in new tab)fits: verifiedWires to the bike's 12 V battery (cable supplied) or an optional battery case; mounts includedAdd to sheet
Healtech Brake Light Pro flasher modulemid$65fits: verifiedTuono 660 2020–26 (BLP-U02); Tuono 660 Factory 2022–26 (BLP-U01)Add to sheet

Some links may earn Unstocked a commission at no cost to you. Prices shown are typical street prices — always verify fitment and price at the retailer. Model-specific parts (exhausts, rearsets, bodywork) can run 2–3× between bikes — the sheet shows a typical figure.

Stock parts by year

What the Tuono 660 runs stock

PartWhat it came withYears
SuspensionKayaba (KYB) 41 mm USD fork
adjustable for rebound and spring preload, 110 mm travel; rear shock adjustable for preload and rebound, 130 mm travel
2021–2024
SuspensionKayaba 41 mm USD fork, fully adjustable
rebound, compression and preload adjustment, 110 mm travel; piggyback monoshock with rebound, compression and preload adjustment, 130 mm travel
2022–2024
SuspensionÖhlins 43 mm USD fork, fully adjustable
2025 Factory: fully adjustable Öhlins 43 mm fork (110 mm travel) and fully adjustable Öhlins monoshock (130 mm)
2025–present
BrakesBrembo radial 4-piston calipers, 320 mm discs
dual 320 mm discs, Brembo radial calipers with four 32 mm pistons, Brembo radial master cylinder, braided lines; rear 220 mm disc with Brembo 2-piston caliper; multi-map ABS, with the cornering function listed on the Factory sheets
All years
Tires & Wheels120/70 ZR17 · 180/55 ZR17
180/60 ZR17 listed as the alternative rear; 3.5 × 17 / 5.5 × 17 aluminium alloy wheels
All years
QuickshifterAprilia Quick Shift (AQS) — not standard
the base-model spec sheet lists a plain 6-speed gearbox with no AQS; the quickshifter is an add-on on this trim
2021–2024
QuickshifterAprilia Quick Shift (AQS) up/down
bidirectional quickshifter standard on Factory trims
2022–2024 · 2025–present
Drivetrain17/43 final drive
chain final drive, 17/43 on the base bike; the Factory sheets do not list a ratio
2021–2024
ElectronicsAPRC suite
ATC traction control, AWC wheelie control, AEB engine brake, AEM engine maps, ACC cruise control; 5 riding modes (3 fixed, 2 customisable); ride-by-wire with twin 48 mm throttle bodies
2021–2024
ElectronicsAPRC suite with 6-axis IMU
6-axis inertial platform with ATC, AWC, AEB, AEM, ACC and multi-map cornering ABS; 2025 adds ALC launch control and a bonded 5-inch TFT
2022–2024 · 2025–present

From the manufacturers' press material; entries marked reported come from other sources. Check against your exact model year. Stock parts for every bike →

Read before buying

Why mod a Tuono 660

The Tuono 660 is the cheapest ticket into Aprilia's top-shelf electronics, wrapped in a naked that commutes Monday and does track Fridays. The half-fairing keeps it from being just another naked — and the RS 660's race ecosystem means the upgrade catalog is already deep.

Tuono 660 street mods, in order

  1. Tail tidy

    The stock plate hanger is enormous — a fender eliminator is mod #1 on every naked and doubly so here. Flush LED signals while you're in there.

  2. Quickshifter (base bikes)

    2021–24 base bikes left the factory AQS as a ~$200 accessory the ECU already supports — the highest grin-per-dollar purchase on this bike. Buying used? Check whether it's already activated.

  3. Protection

    Frame sliders and engine case covers — the 660 twin's cases are shared with the RS 660, so GB Racing and Woodcraft coverage applies. Nakeds land on their sides; sliders earn their keep.

  4. Slip-on

    SC-Project, Akrapovič and LeoVince list the 660 platform — many systems share fitment with the RS 660 (verify the listing). Slip-ons keep the cat and run fine stock.

  5. Comfort and contact

    Shorty levers, grips, and a comfort seat — the stock plank is a top-three owner complaint for anyone doing real miles.

  6. Suspension honesty

    The 2021–24 base shock adjusts preload only. Spring the fork for your weight and either upgrade to Factory-spec adjustable units or an aftermarket shock (Öhlins, K-Tech, Nitron all list the 660).

Tuono 660 track build, in order

  1. Tires and tank grips

    Supercorsa SP/Q5-class rubber in the stock 120/70-17 and 180/55-17 sizes, plus Stompgrip/TechSpec panels — the upright ergos make lock-on grip matter more, not less.

  2. Brake consumables

    Race pads, braided lines, high-temp fluid and a lever guard for the Brembo radials. Hardware is already good; consumables are the gap.

  3. Fix the rear first

    Base bikes: the preload-only shock is the weak point at pace — an adjustable aftermarket unit sprung for your weight is the single biggest track upgrade on this bike.

  4. Case covers and sliders

    Track orgs want covered cases: GB Racing/Woodcraft covers plus axle sliders. Twins Cup vendors (Spears Racing and co.) stock the 660 family.

  5. Ergonomics and gearing

    Rearsets (Bonamici, Woodcraft — most RS 660 sets have Tuono fitment, verify per listing) and a rear sprocket bump for tight tracks; base 2021 gearing is tall.

  6. Full system and tune

    Full exhaust plus a matched flash last — decat without a tune throws a CEL, and the money does more in suspension and tires until you're chasing tenths.

Tuono 660 fitment by year (2021–2026)

  • Tuono 6602021–2024

    Launch bike: ~95 hp claimed, preload/rebound-adjustable KYB fork, Sachs shock, quickshifter a ~$200 factory accessory rather than standard. 2021 builds fall under the 660 con-rod recall (NHTSA 21V-502) — verify by VIN.

  • Tuono 660 Factory2022–2024

    ~100 hp claimed, fully adjustable KYB fork and Sachs reservoir shock, lithium battery (~4 lb lighter), quickshifter standard, shorter gearing. The trim most worth hunting used.

  • 2025 refresh2025–present

    US lineup goes Factory-only: ~105 hp claimed via 52 mm throttle bodies, Öhlins NIX fork + STX46 shock, launch control added. Suspension parts for 2021–24 bikes do not transfer.

Tuono 660 gotchas — read before buying

Caution: 2021 con-rod recall (NHTSA 21V-502) covered the Tuono 660 alongside the RS — affected engines were replaced whole. Confirm recall closure by VIN on any used 2021.
Caution: Base vs Factory is a real parts split: different suspension, battery, gearing and quickshifter status. 'Fits Tuono 660' listings don't always mean both trims — verify fitment for your exact trim and year.
Caution: From 2025 the US lineup is Factory-only with Öhlins — suspension upgrades and takeoffs from 2021–24 bikes don't transfer to 2025+.
Caution: The quickshifter being optional on 2021–24 base bikes means used listings claiming 'quickshifter equipped' need checking — it's an ECU-activated accessory, not standard.
Caution: Despite the shared platform, Tuono bodywork, tail and cockpit parts are not RS 660 parts — the handlebar vs clip-on difference alone changes levers, mirrors and cable routing.

Tuono 660 parts interchange

Reported by riders; verify before buying. Full chart → See also: Aprilia RS 660.

  • RS 660 shares the engine and frame — community-reported crossover on engine covers, case protection, drivetrain and most engine-adjacent hardware; bodywork, subframe and cockpit parts do not swap.
  • Factory-trim takeoff suspension (fully adjustable KYB fork, Sachs reservoir shock) is community-reported to fit 2021–24 base bikes as a budget upgrade path — verify year and lengths before buying used takeoffs.

Aprilia Tuono 660 mods FAQ

Can I add the quickshifter to a base Tuono 660?

Yes — Aprilia's AQS up/down quickshifter is a roughly $200 factory accessory on 2021–24 base bikes, and the ECU already supports it. It's the consensus first mod for this bike.

Do RS 660 parts fit the Tuono 660?

Engine, protection and drivetrain parts largely do (community-reported); bodywork, tail sections, screens and cockpit controls don't — the Tuono runs a handlebar and its own fairing. Check each listing's fitment line for your exact year.

Tuono 660 base or Factory — which is the better platform?

Factory, if the price gap is small: fully adjustable suspension, standard quickshifter, lighter battery and shorter gearing are exactly the first ~$1,500 of mods you'd do to a base bike anyway.

Is the Tuono 660 good on track?

Yes — it's an RS 660 with a handlebar. Sort the rear shock (base bikes), fit race pads and proper rubber, and it hangs with faired middleweights at track-day pace.

What recalls affect the Tuono 660?

The 2021 connecting-rod recall (NHTSA 21V-502) covered early Tuono 660s along with the RS 660 — Aprilia replaced complete engines. A VIN check should show it closed on any 2021 bike.