Aprilia RS 660 (2020+) Maintenance Schedule

2021 Aprilia RS 660 RHS diagonal studio shot

This is the maintenance schedule for the 2020+ Aprilia RS 660, Aprilia’s entrance into the “middleweight sports” category.

The Aprilia RS 660 uses an all-new 659cc liquid-cooled DOHC parallel twin engine with a 270/450-degree firing order, giving it a nicely aggressive rasp off.

The RS 660 is a high-end middleweight sportbike. With premium features like fully adjustable front suspension (and rear suspension adjustable for preload and rebound damping), cornering ABS, and cruise control, it offers a lot in a package which doesn’t require you to go to a race track to enjoy it.

Its modest (but fun) 75 kW / 100 CV engine produces peak power at 10,500 rpm and peak torque at 8,500 rpm, both of which mean that this bike is very street-usable.

The same engine is used in the Aprilia Tuono 660, which is a very similar motorcycle to the RS 660, just positioned more as a standard.

Aprilia RS 660 RHS profile pic

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What you need to service your Aprilia RS 660

Below are the recommended products and some common alternatives. This is from the service manual (screenshot below).

ProductAprilia recommendation
Engine oilSynthetic motorcycle oil, 10W-50, API SL, JASO MA2., e.g. Castrol Power 1 10W-50.
Oil filterSame oil filter as many Aprilia motorcycles — OEM part 857187, Hiflofiltro HF138RC.
Spark plugNGK IR MR9DI-7 (gap 0.7-0.7mm)
Air filterDNA air filter P-AP6S21-01, Sprint PM176S
GreaseLithium-calcium soap based grease
CoolantEthylene glycol-based coolant with organic inhibition additives, Red, ready to use.
Brake fluidSynthetic DOT 4 brake fluid, e.g. Castrol DOT 4
Fork oilSAE 7.5W fork oil. Aprilia motorcycles generally recommend a distance or time interval for fork oil.
BatteryYuasa YTZ10S or BS Battery BSLi-04
Aprilia RS 660 recommended consumables
Recommended products — Aprilia RS 660

Maintenance schedule for the Aprilia RS 660

Below is the maintenance schedule from the Aprilia RS 660’s service manual.

The service manual has the items in an unintuitive order. The order below makes more sense intuitively, e.g. with things grouped together, and “things to replace” more up the top.

Legend for the maintenance schedule

  • I = check and clean, adjust, lubricate, or replace, if necessary
  • C = clean
  • R = replace
  • A = adjust
  • L = lubricate
km x 1000110203040
mi x 10000.66.212.418.624.9
Motorcycle set upIIIII
Vehicle general operationIIIII
Engine oil (Castrol Power 1 10W-50)RRRRR
Engine oil filter (HF139RC)RRRRR
Air filter (DNA P-AP6S21-01)IRIR
Spark plug (NGK MR9DI-7)RR
Valve clearanceAA
Clutch cableLLLLL
Drive chain (2) (Motul chain care kit)I – LI – LI – LI – LI – L
Front sprocket – rear sprocket – chain sliderIIII
Steering bearings and steering playIIIII
Rear shock absorber (bearings – linkage mechanisms)II
Fork oil (3)R
Fork oil sealsII
Brake discs & brake pads wear (1)IIIII
Brake systemsIIIII
Brake fluid (Castrol DOT 4)IIIII
Wheel bearings – wheelsIIIII
Tyres – pressure/wear (1)IIIII
Cooling systemIIII
Safety switches (stand, stop, clutch, extra negative stroke, gas control)IIIII
Headlight aimingIIII
Nut/bolt tightnessIIIII
[D] Diagnosis by toolIIIII
Aprilia RS 660 maintenance schedule


  1. Brake discs, brake pads, and tyres: Check before every trip.
  2. Drive chain: Check and clean, adjust, or replace if necessary every 1000 km (600 mi).
  3. Fork oil: Replace at the earlier of 40000 km (25000 mi) or 4 years.

General info about the Aprilia RS 660

The Aprilia RS 660 is an entrant into the growing arena of modest-powered middleweights that are high-spec.

Like the 2021+ Yamaha YZF-R7, for example, the Aprilia RS 660 has high-spec suspension, brakes, and ride electronics — being one of the few middleweights with cruise control.

The RS 660’s 75 kW / 100 hp motor, while “middleweight”, is very well-matched with the motorcycle’s modest weight of 183kg — wet, with a full tank of gas. It’s a very lightweight motorcycle, especially considering the high level of spec.

The engine, while low-capacity, runs quite “hot” with an aggressive 13.5:1 compression ratio. This both helps the engine get higher power peaks as well as keep it very efficient (maximum combustion), for Euro 5 compliance.

To keep the engine cool there’s both a radiator AND a water-oil heat exchanger.

The Aprila RS 660 is a motorcycle designed to appeal to a growing majority of riders who want a sportbike but don’t necessarily want to rev much past 10,000 rpm on a regular basis, and who might only rarely make it to the track.

The comfortable seating position of the RS 660 (compared to aggressive track-first bikes, anyway) means that it’s usable every day. Aids like cruise control add to that experience.

The RS 660 distinguishes itself by having quite high-end running gear. Its Kayaba adjustable forks and Brembo brakes on 320mm discs are the kind of equipment you might see on motorcycles with 50% more engine capacity and peak power.

But the lower power output of the RS 660 means that you might actually see the redline in everyday use — on the weekends, maybe. And when you do it, you won’t be chewing through the most expensive tyres in the world.

Some of the comfort gear to make the Aprilia RS 660 usable as an everyday bike include

  • Cornering ABS and lean angle-aware traction control, via an IMU
  • Ride modes (five of them!)
  • A quickshifter
  • Cornering lights
  • Automatic high beams
  • Self-cancelling turn signals
  • Full LED lighting
  • A colour TFT display

Basically, while a sportbike, the Aprilia RS 660 is the Rolls Royce of middleweight sportbikes. Many of those features (like self-cancelling turn signals) are the kind of gear you might more often see on a high-end BMW or Honda touring rig.

Some owners have complained of small oil leaks in the early models of the RS 660. While these may have been random failures and not representative of the majority, it’s prudent to be observant.

Maintaining the RS 660 isn’t too complicated thanks to the fact that there are only two cylinders and only one head. The valve service has a relatively infrequent 20 000 km (12 000 mi) interval, but with one head and only two cylinders, it’s much less work than inline four motorcycles, or the RSV4 with its V4 engine.

Manual for the Aprilia RS 660

The above maintenance schedule came from the service manual for the Aprilia RS 660.

Aprilia RS 660 maintenance schedule table screenshot

Aprilia doesn’t make their user manuals available as PDFs, unfortunately.

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