This is the maintenance schedule with associated service intervals for the Triumph Street Twin motorcycle, launched in 2016 to replace the Triumph Bonneville EFI.
It’s very similar to those for other motorcycles with similar engines in the Triumph Modern Classics, notably the Triumph Street Cup.
The Street Twin is a sporty, basic roadster based on the Triumph 900cc liquid-cooled engine. It’s somewhat of a replacement for the Bonneville (base model), whereas the Bonneville T100 replaces the old T100.
The engines that once were 865cc and air/oil cooled became 900cc and liquid-cooled, as well as getting a small power bump (that increased with time). The “Street” series also tends to make its power higher up in the rev range.
The Street Twin could also be seen as the smaller sibling to the later-released Speed Twin, a 1200cc standard/sport bike.
In 2019, Triumph updated the Street Twin with a small power bump and a torque curve that’s a little higher in the rev range, but the maintenance schedule and manual stayed the same. (Note: The brake pad spec is different, see below.)
Finally, in 2021, Triumph updated the 900cc platform line, including the 2021+ Street Twin.
What you need to service the Triumph Street Twin (2016-2020)
Servicing the Triumph Street Twin is just like servicing another modern British 900cc twin. You need the below parts and consumables for a standard maintenance job.
|Part||Triumph 900cc Street Twin spec|
|Oil||Triumph recommends 10W/40 or 10W/50 semi or fully synthetic motorcycle engine oil that 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. A high-quality alternative is Motul 7100.|
|Oil filter||Replace the oil filter every time you change the oil. Use Triumph part number T1218001, which fits a lot of Triumph motorcycles. You can also use Hiflofiltro HF204RC which has a neat nut on the end.|
|Brake fluid||Triumph motorcycles need DOT 4 brake fluid (the 900cc range has a clutch cable, so you don’t need fluid for the clutch).|
|Coolant||Triumph uses Hybrid Organic Acid Technology coolant with a 50% ethylene glycol mix. Zerex Asian Vehicle Coolant is a HOAT coolant that meets this spec.|
|Front brake pads||Standard brake pads code is T2027535. The equivalent part number for EBC brakes is FA142HH.|
2019+ (Brembo caliper): Standard brake pads code is T2026565. The part number for EBC brakes is FA322/4HH.
|Rear brake pads||Use original part number T2022955. The equivalent part number for EBC brakes is FA214/2HH.|
|Spark plugs||NGK code LMAR8A-9. Note they’re sold individually. Make sure they’re gapped to 0.9mm (+0.0, -0.1mm) with an appropriate spark plug gap tool.|
|Air filter||The part number for the air filter is T2201057. You can also use K&N part TB-9016.|
Maintenance Schedule for Triumph Street Twin (2016-2020)
The following is the list of maintenance operations and to be done on this motorcycle with a distance or time interval — whichever comes earlier.
- The maintenance schedule from the manual has been reformatted slightly to suit display in a web page.
- Part of the below table includes checks you should do every day. If they’re daily inspections, also do them at an annual service.
- Do the 500 km / 800 mi service at 1 month — whichever comes sooner.
- Items marked [T] are for Triumph dealers/authorised technicians, unless you have dealer tools handy.
|Engine – check for leaks||•||•||•||•||•||Day|
|Engine oil – replace (Castrol Power 1 Racing 4T 10W-40)||•||•||•||•||•||Year|
|Engine oil filter – replace (HF204RC)||•||•||•||•||•||Year|
|Fuel System and Engine Management|
|Fuel system – check for leaks, chafing etc.||•||•||•||•|
|Throttle body plate (butterfly) – check/ clean||•||•||•||•|
|[T] Autoscan – Carry out a full Autoscan using the Triumph Diagnostic Tool||•||•||•||•||•||Year|
|Air cleaner – replace||•||•||•||•||Year|
|Fuel filter – replace||•||•||Year|
|Fuel hoses – replace||4 years|
|Evaporative loss hoses* – replace||4 years|
|Spark plugs – check||•||•||Day|
|Spark plugs – replace (NGK LMAR8A-9)||•||•||Year|
|Cooling system – check for leaks||•||•||•||•||•||Day|
|Cooling system – check coolant hoses for chafing/ cracks/ damage. Replace if necessary.||•||•||•||•|
|Coolant level – check/adjust||•||•||•||•||•||Day|
|Coolant – replace (Zerex Asian Vehicle Coolant)||3 years|
|Clutch cable – check function and adjust as necessary||•||•||•||•||•||Day|
|Valve clearances – check||•||•|
|Wheels and Tires|
|Tire wear/tire damage – check||•||•||•||•||•||Day|
|Tire pressures – check/adjust||•||•||•||•||•||Day|
|Wheels – inspect for damage||•||•||•||•||•||Day|
|Wheel bearings – check for wear/smooth operation||•||•||•||•||•||Year|
|Steering and Suspension|
|Steering – check for free operation||•||•||•||•||•||Day|
|Front and rear suspension – check for damage/ leaks/ smooth operation||•||•||•||•||•||Day|
|Fork oil – replace||•|
|Headstock bearings – check/adjust||•||•||•||•||•||Year|
|Steering head bearings – lubricate (use lithium soap-based grease)||•||•|
|Brake pads – check wear levels||•||•||•||•||•||Day|
|Brake master cylinders – check for fluid leaks||•||•||•||•||•|
|Brake calipers – check for fluid leaks and seized pistons||•||•||•||•||•|
|Brake fluid levels – check||•||•||•||•||•||Day|
|Brake fluid – replace (Castrol DOT 4)||2 years|
|Drive chain slack – check/adjust||•||•||•||•||•||Day|
|Drive chain – wear check||800 km (500 mi)|
|Drive chain – lubricate (Motul Chain Paste)||300 km (200 mi)|
|Drive chain rubbing strips – check||•||•||•||•||•||Year|
|All lights, instruments and electrical systems – check/adjust||•||•||•||•||•||Day|
|[T] Instruments, chassis ECM (if equipped) and engine ECM – check for latest calibration download using the Triumph diagnostic tool||•||•||•||•||•||Year|
|Fasteners – inspect visually for security||•||•||•||•||•||Day|
|Bank angle indicators – check for wear||•||•||•||•||•||Day|
|Side stand/Center stand – lubricate/check operation||•||•||•||•||•||Day|
|Side stand pivot pin – clean/grease||•||•||•||•|
|[T] Carry out all outstanding Service Bulletin and warranty work||•||•||•||•||•||Year|
|Carry out road test||•||•||•||•||•||Year|
|[T] Complete the service record book and reset the service indicator (if equipped)||•||•||•||•||•||Year|
General information about the Triumph Street Twin
The Triumph Street Twin was a big refresh from the Bonneville of earlier years.
The Triumph Street Twin is based on a new 900cc liquid-cooled motor from Triumph. In its original incarnation in 2017 and 2018, the Street Twin made 41 kW (55 hp). It got a bump in 2019, when the motor made 65 hp peak at peak, but higher in the rev range. The manual and maintenance schedule stayed the same.
Like the earlier Bonneville (not the T100), the Street Twin is the low-spec, light-weight motorcycle that’s more “engaging” to ride (or “less relaxed”). It’s more revvy and lightweight compared to its T100 sibling.
The new Triumph Street Twin’s (and stablemates’) 900cc engine also got a 270-degree crankshaft. This was previously a feature of the Scrambler, and meant to more suit “torquey” engines.
Triumph had retained the 360-degree crankshaft for their Bonnevilles for what they considered to be a more classic British feeling and sound. But from 2016 onward, the 270-degree crankshaft became a mainstay of Triumph parallel twins, large and small.
Power in the water-cooled engine is made slightly higher in the rev range than on the air cooled motors. The service intervals of 10,000 miles (16,000 km) help reduce the Street Twin’s cost of ownership, too.
In 2021, Triumph refreshed the 900cc engine and issued a maintenance schedule for the new 2021+ Triumph Street Twin.
Manual for the Triumph Street Twin (2016-2020)
The above maintenance schedule comes directly from the user’s manual for the Triumph Street Twin (2016-2020), including the 2019 refresh, which is available on the Triumph website.