Triumph Bonneville T100 (2017-2020) Maintenance Schedule
This is the maintenance schedule with associated service intervals for the Triumph Bonneville T100 motorcycles made from 2017-2020 (announced in late 2016).
The Bonneville T100’s maintenance schedule is very similar to those for other motorcycles with similar engines in the Triumph Modern Classics with the same engine.
The Bonneville T100 is an evolution of the previous generation of Bonneville T100 which had an air/oil-cooled 865cc engine
The 2017-2020 Triumph Bonneville T100 is based on the same platform as the 2017 Street Twin, with a 900cc parallel twin liquid-cooled and fuel-injected motor with a 270-degree crank. It’s a modest engine, producing just 40.5 kW / 55 hp at 5900 rpm, with peak torque of a healthier 80 Nm / 59 lbf-ft at 3230 rpm.
The 2021+ Bonneville T100 was updated for EURO 5 regulations, with the engine re-tuned significantly, closely matching the new Street Twin.
This post was originally published on May 31, 2020, but has been significantly updated since then with more detail.
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Triumph Bonneville T100 (2017-2020) Service Intervals
In general, the Bonneville T100 has 10000 mile / 1 000 km or annual service intervals. At every service, you change the oil and oil filter, change the air filter, and do a list of checks.
The valve service interval for the Bonneville T100 is every two services, or 20000 miles / 32000 km. That’s also the point at which you change the spark plugs.
Since the Speed Twin has a liquid-cooled engine, make sure you keep the coolant up to date. And replace the brake fluid per the schedule.
What you need to service the Triumph Bonneville T100 (2017-2020)
Servicing the Bonneville T100 is a lot like servicing the Street Twin. After all, they’re very similar motorcycles (same engine base) — just different in terms of chassis.
| Part | Triumph 900cc Bonneville T100 (2017-2020) |
|---|---|
| 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 FA181HH. |
| 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 Bonneville T100
The following is the list of maintenance operations and to be done on this motorcycle.
We’ve split it into three parts
- Daily / pre-ride checks
- The service schedule
- The annual service checklist.
Daily / Pre-ride checks
These are checks to do daily, or before rides.
| Pre-ride checks — Triumph Bonneville T100 |
|---|
| Engine – check for leaks |
| Cooling system – check for leaks |
| Coolant level – check/adjust |
| Clutch cable – check function and adjust as necessary |
| Tire wear/tire damage – check |
| Tire pressures – check/adjust |
| Wheels – inspect for damage |
| Wheels – check wheels for broken or damaged spokes and check spoke tightness |
| Steering – check for free operation |
| Front and rear suspension – check for damage/ leaks /smooth operation |
| Brake pads – check wear levels |
| Brake fluid levels – check |
| Drive chain slack – check/adjust |
| Fasteners – inspect visually for security |
| Bank angle indicators – check for wear |
| All lights, instruments and electrical systems – check/adjust |
| Side stand/center stand (if fitted) – lubricate/check operation |
Service schedule
Notes
- Follow the earlier of the distance or time interval.
- Keep following it in the pattern shown.
- The break-in service isn’t shown as this generation of T100 is no longer sold new. The 2017-2020 T100 had a six-month or 600 mile / 1000 km break-in service.
| mi x 1000 | 10 | 20 | 30 | 40 | |
|---|---|---|---|---|---|
| km x 1000 | 16 | 32 | 48 | 64 | Every |
| Perform all items in daily maintenance checklist and annual service checklist | ✓ | ✓ | ✓ | ✓ | Year |
| Engine oil – replace (Motul 7100 10W-40) | ✓ | ✓ | ✓ | ✓ | Year |
| Engine oil filter – replace (HF204RC) | ✓ | ✓ | ✓ | ✓ | Year |
| Air cleaner – replace | ✓ | ✓ | ✓ | ✓ | |
| Spark plugs – check Optional — Omitted in later revisions to the owner’s manual | ✓ | ✓ | |||
| Spark plugs – replace (NGK LMAR8A-9) | ✓ | ✓ | |||
| Valve clearances – check | ✓ | ✓ | |||
| Camshaft timing | ✓ | ✓ | |||
| Fuel filter – replace | ✓ | ✓ | |||
| Fuel system – check for leaks, chafing etc. | ✓ | ✓ | ✓ | ✓ | |
| Throttle body plate (butterfly) – check/clean | ✓ | ✓ | ✓ | ✓ | |
| Cooling system – check coolant hoses for chafing/ cracks/ damage. Replace if necessary. | ✓ | ✓ | ✓ | ✓ | |
| Coolant – replace (Triumph HD4X or equivalent) | 3 years | ||||
| Steering head bearings – lubricate | ✓ | ✓ | |||
| Fork oil – replace | ✓ | ||||
| Brake fluid – replace (Castrol DOT 4) | 2 years | ||||
| Fuel hoses – replace Optional — Omitted in later revisions to the owner’s manual | 4 years | ||||
| Evaporative loss hoses (if fitted) – replace Optional — Omitted in later revisions to the owner’s manual | 4 years |
Annual service items
Note
- [T] Some maintenance items are only able to be done by a Triumph mechanic with all the Triumph official tools.
| Triumph Bonneville T100 standard annual service checklist |
|---|
| [T] Autoscan – Carry out a full Autoscan using the Triumph Diagnostic Tool |
| [T] Instruments, chassis ECM (if equipped) and engine ECM – check for latest calibration |
| Wheel bearings – check for wear/smooth operation |
| Steering head bearings – check/adjust |
| Brake master cylinders – check for fluid leaks |
| Brake calipers – check for fluid leaks and seized pistons |
| Drive chain rubbing strips – check |
| Side stand pivot pin – clean/grease |
| [T] Carry out all outstanding Service Bulletin and warranty work (Triumph mechanics only) |
| Carry out road test |
| [T] Complete the service record book and reset the service indicator |
Maintaining the Chain on your Triumph Bonneville 100
Chain maintenance isn’t part of scheduled service. Triumph recommends you do it much more often, lubricating and checking it for wear daily or weekly with regular use.
Follow the below service recommendations for the chain of your Bonneville T100.
Use a high-quality lubricant that you can store with the bike when going with it on longer rides.
| Item | Every |
|---|---|
| Drive chain – lubricate Motul Chain Paste | 200 miles (300 km) |
| Drive chain – wear check | 500 miles (800 km) |
About the Triumph Bonneville T100
In 2017, Triumph updated their Bonneville T100 line significantly, updating the 865cc air/oil-cooled engine to the new liquid-cooled “high torque” 900cc engine.
The Triumph Bonneville line is a long-standing brand within Triumph’s range. It’s the “relaxed standard” motorcycle made by Triumph. Calling it a “naked bike” would be a disservice, because the Bonneville wouldn’t dream of having fairings, so comparing it to street-tuned sportbikes — even vintage-styled ones like the Yamaha XSR900 — would not work. They’re for different markets.
The Bonneville T100 is the smaller of the two modern liquid-cooled Bonnevilles, the larger being the Bonneville T120, which along with a bigger engine gets additional components like twin front disc brakes.
The Bonnie T100 is quite different to the Street Twin with which it shares an engine block. Here are the key differences:
| Spec | Triumph Street Twin (2019-2020) | Triumph Bonneville T100 (2017-2020) |
|---|---|---|
| Compression ratio | 11.0:1 | 10.55:1 |
| Peak power | 48 kW (65) hp @ 7,500 rpm (2019-2020) | 40.5kW (55bhp) @ 5900rpm |
| Peak torque | 80 Nm @ 3,800 rpm | 80 Nm @ 3,200 rpm |
| Riding position | Comfortable/sporty | Comfortable |
| Dry Weight | 198kg | 213kg |
| Braking | Single 310mm disc, Nissin 2-piston floating caliper | Single 310mm disc, Nissin 2-piston floating caliper |
| Ride gear | Single dial (no tacho) | Twin dial (inc. tachometer) |
| Wheels | Cast | Spoked |
The Bonneville T100 is closer to the T120 (with the larger engine) in concept than the Street Twin. It’s a relaxed motorcycle, but lighter than its bigger sibling. Having a smaller engine doesn’t make it a weaker feeling motorcycle — it’s a revvier engine and riding it can be a more engaging experience, depending on how and where you ride.
In 2019, Triumph upgraded the Street Twin’s engine, separating it from the Triumph Bonneville T100’s in terms of performance, and changing a couple of chassis parts.
In 2021, Triumph upgraded the Bonneville T100’s engine too, with some changes to the maintenance schedule. You can see the Bonneville T100 2021+ maintenance schedule here.
Manual for the Triumph Bonneville T100
The above maintenance schedule comes directly from the user’s manual for the Triumph Bonneville T100 (2017-2020), which is available on the Triumph website.
