The Moto Ref

Triumph Trident 660 maintenance

Service schedule, intervals and realistic running costs for the 2025 Trident 660, built from its published service data and the cost assumptions shown further down. A compiled guide like this supplements the owner's manual; it never replaces it.

16,000 km
oil service
32,000 km
valve check
2 years
warranty
€1,545
est. per 10,000 km

What is due next on yours?

Distance-based schedule

One row per oil-service milestone. Bold rows are the bigger visits.

Distance-based maintenance schedule for the Triumph Trident 660
OdometerWork due
16,000 km
  • Engine oil and filter
  • Chain wear and tension check
32,000 km
  • Engine oil and filter
  • Chain wear and tension check
  • Air filter
  • Valve clearance check
  • Spark plug
  • Chain and sprocket kit (expect replacement)
48,000 km
  • Engine oil and filter
  • Chain wear and tension check
  • Chain and sprocket kit (expect replacement)
  • Fork oil service
64,000 km
  • Engine oil and filter
  • Chain wear and tension check
  • Air filter
  • Valve clearance check
  • Spark plug

By calendar, not odometer

Time-based maintenance items for the Triumph Trident 660
Engine oil and filterevery 12 months if the distance interval is not reached
Brake fluidevery 2 years
Coolantevery 3 years
Fork oilevery 40,000 km
Batteryload test yearly; typical life 4 to 5 years

What it costs per 10,000 km

Estimated running costs per 10,000 km for the Triumph Trident 660
Fuel4.7 L/100 km at 1.85 EUR/L€870
Oil servicesevery 16,000 km, ~2.5 L oil plus filter and 1 h labour€95
Valve checksevery 32,000 km, ~2 h labour plus plugs€65
Chain and sprocketskit roughly every 24,000 km€115
Tyresnaked rubber, ~8,000 km a set€400
Total, estimated€1,545

Assumptions: workshop labour €95/hour, fuel 1.85 EUR/L, oil €18/L, chain kit €180 fitted, naked tyres €320 a set lasting about 8,000 km. DIY servicing removes the labour lines entirely. Your prices will differ; the ratios mostly will not.

What Trident 660 owners actually watch

  • Service every 16,000 km with valve checks at 32,000 makes this one of the cheapest bikes here to keep serviced; there is little owner folklore because little goes wrong.
  • The triple holds its oil level well but rewards a warm-up before hard revs, like every small triple.
  • Check rear preload with a pillion; the stock setting is solo-soft.

Frequently asked

How often does the Triumph Trident 660 need an oil change?
Every 16,000 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 Triumph Trident 660?
Every 32,000 km. Budget around 2 hours of workshop labour plus spark plugs when it comes due.
Is the Triumph Trident 660 cheap to maintain?
Yes, for its class. Scheduled servicing works out near €160 per 10,000 km on our model, below the naked average of €225.
What does the Triumph Trident 660 cost to run per 10,000 km?
Roughly €1,545 including fuel, scheduled servicing, chain and tyres, using the assumptions published on this page. Ride harder or softer and the tyre line moves first.