Triumph Street Triple S 765cc (2017-2019) Maintenance Schedule

This is the maintenance schedule with associated service intervals for the Triumph Street Triple S made from 2017-2019.

The Triumph Street Triple S 765 is the base model of the new 765 cc line. It has lower-spec brakes and suspension, and the same 765 cc inline three-cylinder engine (a triple) at its core, but it makes slightly less peak power — 111 kW (113 PS / 83 kW) at 11250 rpm.

The maintenance schedule for the Street Triple S 765 very similar to those for other motorcycles with similar engines in the Triumph Street Triple Series, like the full spec Street Triple R.

From 2020, the Street Triple S 765 seems no longer available, replaced by the Street Triple S 660.

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Triumph Street Triple S (765) Service Intervals

Overall, the 765 cc Triumph Street Triple S has 6 000 mile / 10 000 km or annual service intervals, similar to its higher-spec siblings.

At every service, change the oil and filter, and do a number of checks shown below in the service schedule.

Every 12000 miles / 20000 km, change the spark plugs and the air filter, and check the valve clearances.

Even if the Street Triple S isn’t the highest-spec of the range, you’re still likely to ride it aggressively! Thus, regularly attend to its drive chain’s lubrication condition and tension.

You also need to regularly service the brake fluid and the coolant.

Triumph also recommends changing fork oil every 24000 miles / 40000 km.

What you need to service the Triumph Street Triple S 765

Firstly, you need to see if you have the basic motorcycle maintenance tools — nothing shocking, just things like a paddock stand, oil filter wrench, and so on.

The following is a list of specific consumables for the Triumph Street Triple series of motorcycles.

Part	Street Triple S 765 Spec
Engine oil	The manual suggests semi or fully synthetic 10W/40 or 10W/50 motorcycle engine oil which meets specification API SH (or higher) and JASO MA, such as Castrol Power 1 Racing 4T 10W-40 (fully synthetic) engine oil, sold as Castrol Power RS Racing 4T 10W-40 (fully synthetic) in some countries.
Oil filter	Replace the oil filter every time you change the oil. Use Triumph part number T1218001. You can also use HifloFiltro part HF204RC.
Spark plugs	Use NGK spark plugs with code CR9EIA9. Make sure they’re gapped to 0.9mm with an appropriate spark plug gap tool.
Air filter	Use Triumph part number T2200987 or K&N equivalent part TB-6713.
Coolant	Triumph uses Hybrid Organic Acid Technology coolant with a 50% ethylene glycol mix. Zerex G05 is a HOAT coolant that meets this spec.
Brake pads	Front: EBC part FA226HH (you need two sets) — Note, these are different to the RS’ pads Rear: EBC part FA213HH (just need one set) — Same as the RS

Maintenance Schedule for the Triumph Street Triple S 765

In the original manual, the maintenance schedule is one large table of items, combining daily checks, periodic major maintenance, and chain maintenance.

To make it more clear, the maintenance schedule is broken up into.

• Daily checks
• Chain maintenance
• Periodic maintenance

Daily checks

Do these checks on your Triumph Street Triple S 765 before every ride.

Triumph Street Triple S 765 — Daily Checks
Engine and oil cooler – check for leaks
Fuel system – check for leaks, chafing etc.
Cooling system – check for leaks
Coolant level – check/adjust
Clutch cable – check/adjust (Protect all cable life)
Wheels – inspect for damage
Tyre wear/tyre damage – check
Tyre pressures – check/adjust
Lights, instruments, and electrical systems – check
Steering – check for free operation
Forks – check for leaks/smooth operation
Brake pads – check wear levels
Brake master cylinders – check for fluid leaks
Brake calipers – check for fluid leaks and seized pistons
Brake fluid levels – check
Drive chain slack – check/adjust
Drive chain rubbing strip – check
Fasteners – inspect visually for security
Bank angle indicators – inspect visually for wear
Side stand – check operation

Chain maintenance

Chain maintenance is an important part of maintaining any chain-driven motorcycle, especially sporty ones whose chains may undergo significant stress.

Triumph recommends the following chain maintenance schedule for your Triumph Street Triple S.

Chain Maintenance for the Triumph XXX

Triumph recommends you lubricate your chain and check the wear periodically according to the following schedule.

Item	Every
Drive chain – lubricate	200 miles (300 km)
Drive chain – wear check	500 miles (800 km)

To check wear of the Triumph XXX, hang a 10-20 kg (20-40 lb) weight on the chain. Measure the length of 20 links of the straight part of the chain (from the 1st to 21 pin). Make the measurement in a few places to be sure.

If the length of any section of the chain exceeds 319 mm or 12.6 inches, replace the chain, as well as the sprockets.

You also need to regularly check the slack of the chain per the schedule.

How to Check Chain Slack on a Triumph Motorcycle

Every brand of motorcycle measures chain slack differently. For Triumph motorcycles, slack is the free vertical movement of the center part of the bottom chain segment.

1. You need a ruler (or tape measure) and nitrile gloves or a rag (to avoid getting grease on your hands)
2. Put the motorcycle in neutral, on a level service, and elevate the rear wheel with a stand or center stand if you have one fitted.
3. Rotate the wheel and find the tightest part of the chain, in the middle.
4. Use a finger to lightly push the chain up and down. Measure the deflection, which is the chain slack.

Target chain slack for the Triumph XXX: 20-30 mm (0.8 – 1.2 in)

How to Adjust Chain Slack on the Triumph XXX

The procedure is similar on many motorcycles, but of course, specifics vary between brands and models.

You need wrenches and torque wrenches to re-tighten the rear wheel. You need a large torque wrench for the rear axle.

1. Keep the motorcycle’s rear wheel elevated.
2. Loosen the rear axle nut.
3. Loosen the lock nuts on the left and hand side.
4. Turn the adjuster bolts, usually counter-clockwise, extending the bolt “outward” to lengthen the chain and make it tighter. (Sometimes you’ll want to make it looser — in those cases, turn it clockwise / inward)
5. Make sure to adjust the bolts the same amount on each side — check the markings.
6. Tighten both adjuster nuts to 15 lb-ft / 20 Nm, and the rear axle nut to 81 lb-ft / 110 Nm (“very tight”).

Regular maintenance schedule

The following is the list of maintenance operations and to be done on the Street Triple S with a distance or time interval.

Notes

• There are two kinds of service interval: every a) distance or b) time period. Follow the earlier of the two intervals.
• The first break-in service should be done at 1 000 km / 600 miles or 6 months, whichever arrives sooner.
• Items marked [T] need Triumph specialist equipment.
• Camshaft timing check is at first 12K miles (20K km) service only.

x 1000 mi	0.6	6	12	18	24
x 1000 km	1	10	20	30	40	Every
Engine oil – replace (use Castrol Power 1 Racing 4T 10W-40)	✓	✓	✓	✓	✓	Year
Engine oil filter – replace (Triumph part number T1218001)	✓	✓	✓	✓	✓	Year
Throttle body plate (butterfly) – check/clean		✓	✓	✓	✓
[T] Autoscan – carry out a full Autoscan using the Triumph diagnostic tool (if you have one)	✓	✓	✓	✓	✓	Year
[T] ABS modulator – check for stored DTCs	✓	✓	✓	✓	✓	Year
Secondary air injection system – check/clean			✓		✓
Air cleaner – replace (K&N part TB-7617)			✓		✓
Throttle bodies – balance		✓	✓	✓	✓
Fuel hoses – replace						4 years
Evaporative loss hoses – replace						4 years
Spark plugs – check		✓		✓
Spark plugs – replace (NGK CR9EIA9, sold individually)			✓		✓
Coolant – replace (Triumph HD4X or PEAK OET European Vehicles Blue, an equivalent)						3 years
Valve clearances – check/adjust			✓		✓
Camshaft timing – check/adjust			✓			At 12000 mile / 20000 km only
Wheel bearings – check for wear/smooth operation	✓	✓	✓	✓	✓	Year
Fork oil – replace					✓
Steering head bearings – check/adjust		✓	✓	✓	✓
Steering head bearings – lubricate			✓		✓
Rear suspension linkage – check/lubricate			✓		✓
Brake fluid – replace (Castrol DOT 4)						2 years

About the Triumph Street Triple S 765

The Triumph Street Triple has been a long-standing mainstay of Triumph’s line-up since launched over a decade earlier as the 675cc naked roadster based on the then Daytona 675.

The Street Triple in every version is a “street”-able sportbike — revvy, but not too highly strung; powerful, but not so powerful you’ll flip your bike; high-spec, but not a race bike. The Triumph Street Triple S is another incarnation of that same spirit — comfortable, quick, and very high-quality.

In 2017, Triumph increased the displacement of their engines from 675cc to 765cc, a move that caused more than one writer to think it was just a typo (until I saw it a few times…). This is obviously for the benefit of more power, and also went along with an engine redesign to help the motorcycles meet emissions regulations.

Triumph also expanded the Street Triple range from 675 onward, releasing multiple distinct models.

To confuse things slightly, there were two versions of the Street Triple S released in 2017 — a 765cc version and the 660cc version. The 660cc version was restrictable to lower power output (35 kW / 47 hp) for compliance in Europe/Australia etc.

The Triumph Street Triple S 765 is very similar to the rest of the range — but is lower spec.

Some differences between the Street Triple S and the R and RS are that the Street Triple S has

• Front brakes — Nissin two-piston calipers, vs. the Brembo 4-piston calipers on the R and RS (in two different variations)
• Suspension — Preload-adjustable fork and shock on the Street Triple S, whereas the R and RS have fully adjustable suspension front and rear
• Instruments — the Street Triple S has an analogue + LCD display, compared to the TFT instruments on the R and RS

So the Street Triple S is much more a low-spec commuter than are the R and RS.

Still, it’s a capable bike, with an engine that produces 83 kW (111 / 113 PS hp) at 11250 rpm, you can’t say it’s a slouch. It’s the kind of bike that you can use every day without worrying about expensive parts being dinged by gravel, and then occasionally when you want to go for a blast, the suspension and brakes won’t let you down, unless you push the bike REALLY hard…

The Street Triple S was an unpopular choice as it was lower spec and wasn’t available in the 2020 revisions to the motorcycles. In the US you can only get the R and RS now. In other markets, you can only get the 660cc Street Triple S.

Reference — Manual Screenshot for the Triumph Street Triple S 765

Below is a screenshot from the original manual for the Street Triple S. It’s a little confusing — it implies that the service intervals are every 10,000 miles. But it’s 6,000 miles / 10,000 km.

The above maintenance schedule comes directly from the user’s manual for the Triumph Street Triple S, which is available on the Triumph website.