Aprilia SX 125 service intervals and costs
The full service schedule for the 2025 SX 125: oil change interval, valve checks, first service and realistic costs, built from its published service data and the assumptions shown further down. A compiled guide like this supplements the owner's manual; it never replaces it.
- 6,000 km
- oil service
- 12,000 km
- valve check
- 2 years
- warranty
- €1,555
- est. per 10,000 km
What is due next on yours?
Service intervals
One row per oil-service milestone. Bold rows are the bigger visits.
| Odometer | Work due |
|---|---|
| 6,000 km |
|
| 12,000 km |
|
| 18,000 km |
|
| 24,000 km |
|
| 30,000 km |
|
| 36,000 km |
|
| 42,000 km |
|
First service at 1,000 km
The first service matters more than any visit after it: it drains the oil that carried the metal particles of engine break-in. Booked at a dealer it runs about €145, and skipping or stretching it is the cheapest way to buy an expensive problem. Here is what the workshop does:
- Engine oil and filter change
- Chain tension and lubrication
- Brake, throttle and clutch operation check
- Fastener torque check and fluid levels
By calendar, not odometer
| Engine oil and filter | every 12 months if the distance interval is not reached |
|---|---|
| Brake fluid | every 2 years |
| Coolant | every 3 years |
| Fork oil | every 40,000 km |
| Battery | load test yearly; typical life 4 to 5 years |
What each service costs
Dealer estimates from the labour and parts assumptions below. DIY removes the labour line entirely.
| First service1,000 kmBreak-in oil and filter change plus the full checklist; flushes out running-in metal | ~€145 |
|---|---|
| Routine serviceevery 6,000 km or 12 monthsOil and filter, ~2 L, chain and brake checks, 1 h labour | ~€145 |
| Valve check serviceevery 12,000 kmRoutine service plus 2 h of valve work and new spark plugs | ~€360 |
What it costs per 10,000 km
| Fuel2.6 L/100 km at 1.85 EUR/L | €480 |
|---|---|
| Oil servicesevery 6,000 km, ~2 L oil plus filter and 1 h labour | €245 |
| Valve checksevery 12,000 km, ~2 h labour plus plugs | €180 |
| Chain and sprocketskit roughly every 24,000 km | €115 |
| Tyressupermoto rubber, ~6,000 km a set | €535 |
| Total, estimated | €1,555 |
Assumptions: workshop labour €95/hour, fuel 1.85 EUR/L, oil €18/L, chain kit €180 fitted, supermoto tyres €320 a set lasting about 6,000 km. Oil quantity is estimated from displacement. DIY servicing removes the labour lines entirely. Your prices will differ; the ratios mostly will not.
Oil, plugs, chain and tyres
The consumables card: what the SX 125 takes, for the parts counter or the shopping basket.
| Oil change interval | every 6,000 km or 12 months |
|---|---|
| Spark plug replacement | every 12,000 km |
| Tyre sizes | 100/80-17 front, 130/70-17 rear |
What to buy for the SX 125's next service
Each card carries the manual's grade or size straight into an Amazon search. Match the listing to the spec yourself; the search is a head start, not a verified pick.
- Find at Amazon
Oil filter
Oil filter for the Aprilia SX 125
Filters are keyed to the engine, not the badge. Check the listing's fitment names the SX 125 and its model year before buying; the part number in the manual settles any doubt.
- Find at Amazon
Front tyre
100/80-17 front tyre
Size is exact and not up for debate. Speed and load ratings must meet or exceed the manual's; compound and tread pattern are where taste comes in.
- Find at Amazon
Rear tyre
130/70-17 rear tyre
Same rule as the front: size exactly as listed, ratings at or above the manual's. Buying front and rear as a matched pair keeps the handling the factory set up.
As an Amazon Associate, The Moto Ref earns from qualifying purchases. Prices and availability live on the retailer's page; recommendations follow the spec sheet, not the commission.
What SX 125 owners actually watch
- The 6,000 km service interval is shorter than the KTM's, but each visit is simple work on an engine every Aprilia dealer has known for years.
- Teenage commuting kills chains with neglect, not distance. A monthly clean and lube is the single cheapest habit an SX owner can build.
- Check the rear preload before carrying a pillion; the stock setting assumes one light rider, and the long-travel shock sags fast with two aboard.
Frequently asked
- When is the first service on the Aprilia SX 125?
- At 1,000 km. It is mostly an oil and filter change plus a full checklist, and it matters more than any later visit: it flushes out the metal particles from engine break-in. Expect around €145 at a dealer.
- How often does the Aprilia SX 125 need an oil change?
- Every 6,000 km or 12 months, whichever comes first. Expect roughly €155 at a dealer, or the price of oil and a filter if you do it yourself.
- What is the valve check interval on the Aprilia SX 125?
- Every 12,000 km. Budget around 2 hours of workshop labour plus spark plugs when it comes due.
- Is the Aprilia SX 125 cheap to maintain?
- It is pricier than average for its class: scheduled servicing works out near €425 per 10,000 km on our model, against a supermoto average of €310. The full cost table above shows where it goes.
- What does the Aprilia SX 125 cost to run per 10,000 km?
- Roughly €1,555 including fuel, scheduled servicing, chain and tyres, using the assumptions published on this page. Ride harder or softer and the tyre line moves first.