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Triumph Speed Twin (2021+) Maintenance Schedule

2021 Triumph Speed Twin RHS front diagonal

This is the maintenance schedule with associated service intervals for the Triumph Speed Twin motorcycle, launched in 2019 as the original (modern) Speed Twin, but revamped as a higher-spec bike in 2021.

Triumph significantly upgraded its original Speed Twin in 2021. It’s still the same concept as before — a sportier standard bike than the Triumph T120, without being as committed as the Triumph Thruxton RS, with which it shares some components.

Already an attractive bike, Triumph gave it more performance (and more torque lower in the rev range), higher-spec Brembo M50 brakes, upside-down (rather than right-way-up, with gaiters like the old one), Marzocchi forks (though still not adjustable), and lightweight 12-spoked rims.

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What you need to service a Triumph Speed Twin (2021+)

Even though the majority of people who own such a new motorcycle as the Speed Twin will get it serviced at a dealer, a number of people out there will be doing their own service. This guide is for you!

TriumphPart spec (2021+ Triumph Speed Twin)
OilTriumph 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, or Mobil 1 10W-40.
Oil filterReplace the oil filter every time you change the oil. Use Triumph part number T1218001. You can also use Hiflofiltro’s HF204RC (better than K&N these days).
Brake fluidTriumph motorcycles need DOT 4 brake fluid (they have a clutch cable, so you don’t need fluid for the clutch).
CoolantTriumph uses Hybrid Organic Acid Technology coolant with a 50% ethylene glycol mix. Zerex G05 is a HOAT coolant that meets this spec.
Front brake padsThe 2021 Triumph Speed Twin has Brembo M50 calipers. Triumph part number for the pads is T2021541.
Rear brake padsTriumph part number is T2022955. Use FA214/2HH (same for many Triumph motorcycles)
Spark plugsNGK code LMAR8A-9. Note they’re sold individually. Make sure they’re gapped to 0.9mm with an appropriate spark plug gap tool.
Air filterThe part number for the air filter is T2201122. You can also use K&N part TB-1216.
Cable maintenanceProtect All Cable Life is a good-quality cable maintenance product. You can also use engine oil (but it’s a bit messy)
Chain maintenanceA good kit to have on hand is the Motul chain care kit — including lubricant, cleaners, a brush, and so on.
Consumables for the 2021+ Triumph Speed Twin

Maintenance Schedule for Triumph Speed Twin (2021+)

The following is the list of maintenance operations and to be done on this motorcycle with a distance or time interval — whichever comes earlier.

  • Part of the below table includes checks you should do every day. Do these as part of the annual check too.
  • We’ve removed the break-in schedule as the time would already have passed.
  • Keep repeating this maintenance schedule beyond the end of the indicated time/distance.
Mi x 100010203040
Km x 100016324864Every
Lubrication
Engine – check for leaks Day
Engine oil – replaceYear
Engine oil filter – replaceYear
Fuel System and Engine Management
Fuel system – check for leaks, chafing etc.
Throttle body plate (butterfly) – check/clean
Autoscan – Carry out a full Autoscan if you have Triumph toolsYear
Air cleaner – replace
Fuel filter – replace
Throttle bodies – balance
Fuel hoses – replace 4 years
Evaporative loss hoses* – replace4 years
Ignition system
Spark plugs – check
Spark plugs – replace
Cooling system
Cooling system – check for leaks Day
Cooling system – check coolant hoses for chafing/cracks/damage. Replace if necessary. (Zerex G05)
Coolant level – check/adjustDay
Coolant – replace3 years
Engine
Clutch cable – check function and adjust as necessary (lubricate as needed with Protect All Cable Life)Day
Valve clearances – check
Camshaft timing
Wheels and Tires
Tire wear/tire damage – checkDay
Tire pressures – check/adjust Day
Wheels – inspect for damageDay
Wheel bearings – check for wear/smooth operationYear
Steering and Suspension
Steering – check for free operationDay
Front and rear suspension – check for damage/leaks/smooth operationDay
Fork oil – replace
Steering head bearings – check/adjust Year
Steering head bearings – lubricate
Brakes
Brake pads – check wear levels (check parts table above)Day
Brake master cylinders – check for fluid leaksYear
Brake calipers – check for fluid leaks and seized pistonsYear
Brake fluid levels – checkDay
Brake fluid – replace (Castrol DOT 4)2 years
Drive Chain
Drive chain slack – check/adjust Year
Drive chain – wear check500 mi (800 km)
Drive chain – lubricate (Motul Chain Care Kit)200 mk (300 km)
Drive chain rubbing strips – checkYear
Electrical
All lights, instruments and electrical systems – check/adjustDay
General
Instruments, chassis ECM (if equipped) and engine ECM – check with Triumph tools (if available)Year
Fasteners – inspect visually for securityDay
Bank angle indicators – check for wearDay
Side stand/Center stand – lubricate/check operationDay
Side stand pivot pin – clean/grease
Carry out all outstanding Service Bulletin and warranty work (are you a Triumph mechanic?)Year
Carry out road testYear
Complete the service record book and reset the service indicator (if you can)Year
Triumph Speed Twin (2021+) maintenance schedule

* Evaporative system fitted to models for certain markets only.

General information about the Triumph Speed Twin (2021+)

The Triumph Speed Twin 2021+ takes the same basic formula of the 2019 Speed Twin and adds more.

It’s still a “sporty” motorcycle in the Triumph Modern Classics line. It has more of an aggressive riding position than the Bonneville T120, but less of an actual sporty position than on the Triumph Thruxton RS (updated for 2020). The same can be said of spec — somewhere between the two.

It’s easiest to look at the specs of the two models side by side:

Spec2019-2020 Triumph Speed Twin2021+ Triumph Speed Twin
Power72.3 (97 hp) kW @ 6750 rpm73.6 kW (98.6 hp) @ 7250 rpm
Torque112 Nm (82.6 ft-lb) @ 4950 rpm112 Nm (82.6 ft-lb) @ 4250 RPM
Front brakesTwin 305mm discs, Brembo calipersTwin 320mm discs, Brembo M50 calipers
Front suspension41mm cartridge forks, RSU43mm USD Marzocchi forks
Comparing specs of 2019 and 2021 Triumph Speed Twin

The 2021 Triumph Speed Twin otherwise delivers what the original did — a sporty and yet comfortable “everyday sports bike”, with an engine that’s full of character and doesn’t need you to rev it to the moon to get the most out of it.

It has handlebars, a “standard” plank seat, and a riding position that will have you enthusiastically revving without feeling like this bike is only happy when it’s leaned over, like on a superbike.

Triumph didn’t just improve the forks by adding the Marzocchi units. They also added lighter weight rims. Combined with the upside-down fork configuration, this contributes to significantly lower unsprung mass at the front, for better handling.

While the Triumph Speed Twin doesn’t have the higher power output of the Triumph Thruxton RS, Triumph did revise the engine’s internals. It has a lighter crank and an alternator built with rare earth magnets for less inertia, higher compression pistons, and modified intake and exhaust ports.

The combination of the engine mods means that even though power only got a small bump, peak power (the same) gets delivered lower in the rev range. This is a rare treat in the age of emissions restrictions!

Maintenance of the Speed Twin is much like earlier generations — 10000 mile (16000 km) service intervals where you need to check the valves and plugs, change the fluids (or on a time basis, e.g. brake fluid), and tighten everything up.

Manual for the Triumph Speed Twin (2021+)

Triumph Speed Twin 2021 maintenance schedule screenshot

The above maintenance schedule comes directly from the user’s manual for the Triumph Speed Twin (2021), which is available on the Triumph website.

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