This is the maintenance schedule with associated service intervals for the Triumph Street Twin motorcycle, launched in 2021 to replace 2017-2020 Triumph Street Twin.
It’s very similar to those for other motorcycles with similar engines in the Triumph Modern Classics, notably the Triumph Bonneville T100 (2021+).
Like the outgoing model, the Triumph Street Twin (2021+) is based on a 900cc liquid-cooled parallel twin with a 270-degree crank. It’s a sporty, basic roadster, with a single front disc brake and a single gauge which doesn’t include a tachometer.
What you need to service the Triumph Street Twin (2021+)
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 T2026565 (for the Brembo caliper). 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 (2021+)
Below is the maintenance schedule for the 2021+ Triumph Street Twin.
It’s quite similar to the Street Twin from 2017-2020, but the order changed and there are a few less items to maintain.
Service intervals for the Street Twin are every 16,000 km or 10,000 miles — quite wide.
- * Carry out the initial maintenance at that period or after six months, whichever comes earlier.
- Part of the below table includes checks you should do every day. Do these on your annual service too.
- [T] Some maintenance items are only able to be done by a Triumph mechanic with all Triumph official tools.
|km x 1000||1*||16||32||48||64|
|mi x 1000||Every||0.6*||10||20||30||40|
|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.||•||•||•||•|
|Air filter – renew (replace more often if consistently riding in wet or dusty conditions)||•||•||•||•|
|Fuel filter – renew||•||•|
|Spark plugs – renew (NGK LMAR8A-9)||•||•|
|Cooling system – check for leaks||Day||•||•||•||•||•|
|Cooling system – check coolant hoses for chafing/cracks/damage. Replace if necessary.||•||•||•||•|
|Coolant level – check/adjust||Day||•||•||•||•||•|
|Coolant – renew (Zerex Asian Vehicle Coolant)||3 years|
|Clutch – check operation||Day||•||•||•||•||•|
|Clutch lever pivot – lubricate||Year||•||•||•||•|
|Valve clearances – check||•||•|
|Wheels and Tires|
|Wheels – inspect for damage||Day||•||•||•||•||•|
|Wheel bearings – check for wear/smooth operation||•||•||•|
|Wheels – check wheels for broken or damaged spokes and check spoke tightness (models with spoked wheels only)||Day||•||•||•||•||•|
|Tire wear/tire damage – check||Day||•||•||•||•||•|
|Tire pressures – check/adjust||Day||•||•||•||•||•|
|Steering and Suspension|
|Steering – check for free operation||Day||•||•||•||•||•|
|Front and rear suspension – check for damage/ leaks/ smooth operation||Day||•||•||•||•||•|
|Fork oil – renew||•|
|Headstock bearings – check/adjust||•||•|
|Brake system – check operation||Day||•||•||•||•||•|
|Brake pads – check wear levels||Day||•||•||•||•||•|
|Brake fluid levels – check||Day||•||•||•||•||•|
|Brake fluid – renew (Castrol DOT 4)||2 years|
|Drive chain slack – check/adjust||Day||•||•||•||•||•|
|Drive chain – wear check||500 miles (800 km)|
|Drive chain – lubricate (Motul chain paste)||200 miles (300 km)|
|Drive chain rubbing strips – check for wear, cracks, or damage||Year||•||•||•||•||•|
|Lights, instruments and electrical systems – check/adjust||Day||•||•||•||•||•|
|[T] Autoscan – Carry out a full Autoscan using the Triumph Diagnostic Tool||Year||•||•||•||•||•|
|[T] Instruments, chassis ECM (if equipped) and engine ECM – check for latest calibration download using the Triumph diagnostic tool||Year||•||•||•||•||•|
|Bank angle indicators – inspect visually for wear||Day||•||•||•||•||•|
|Side stand/Center stand – check for wear/smooth operation||Day||•||•||•||•||•|
|Carry out road test||Year||•||•||•||•||•|
|[T] Carry out all outstanding Service Bulletin and warranty work||Year||•||•||•||•||•|
|[T] Complete the service record book and reset the service indicator||Year||•||•||•||•||•|
General information about the Triumph Street Twin (2021+)
The 2021 Triumph Street Twin was largely a EURO 5 update to the Street Twin, but it brought with it a new manual and maintenance schedule for the motorcycle, which is reproduced above.
At its core, the Street Twin is largely the same. It’s still a “street” focused motorcycle that’s very simple in nature – based on a 900cc parallel twin fuel-injected liquid-cooled motor with a 270-degree crankshaft giving it a nice exhaust note and torque-friendly power delivery. Power is largely unchanged — one horsepower less on the official specs, but details like that are lost in dyno checks and street roll-on tests.
There’s a single dial and a round headlight, keeping things simple.
But the new 2021 Triumph Street Triple hides a few changes under the hood. Triumph says the engine has a lighter crankshaft, balance shafts, and magnesium engine cover, giving the Street Twin a slight weight loss of 4kg over the outgoing models.
Additionally, there are some really stylish new colour schemes, like the “Gold Line” — an instant classic. Bikes like the Street Twin need to look good as well as go well, and it achieves this with aplomb.
The Street Twin has standard ABS and traction control, as well as two ride modes — rain and road. These adjust both the throttle map and traction control settings.
Manual for the Triumph Street Twin (2021+)
The above maintenance schedule comes directly from the user’s manual for the Triumph Street Twin (2021+), which is available on the Triumph website.