Triumph Bonneville T120 Ace Maintenance Schedule

This is the maintenance schedule with associated service intervals for the Triumph Bonneville T120 Ace motorcycles.

It’s very similar to those for other motorcycles with similar engines in the Triumph Modern Classics, like the Speed Twin.

This maintenance schedule applies to the following model:

• 2019 Triumph Bonneville T120 Ace

Tools you may need to maintain your motorcycle

To maintain your motorcycle you need to make sure you have the best oil and other consumables, motorcycle-specific tools, and other tools for your workshop.

Below we’ve listed:

• The most essential motorcycle tools for everyday maintenance
• General workshop tools (sockets, pliers, wrenches etc.) for motorcycles and other use

What you need to service a Triumph Bonneville T120

Triumph recommends many specific kinds of consumables for their motorcycles with the 1200cc engine.

Here’s a list of the things you need to service your Triumph Bonneville T120.

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.
Oil filter	Replace the oil filter every time you change the oil. Use Triumph part number T1218001. You can also use K&N’s KN-204-1.
Brake fluid	Triumph motorcycles need DOT 4 brake fluid (they have 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 G05 is a HOAT coolant that meets this spec.
Front brake pads	Standard brake pads code is T2026565. The equivalent part number for EBC brakes is FA604/4HH.
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 with an appropriate spark plug gap tool.
Air filter	The part number for the air filter is T2201122. You can also use K&N part TB-1216.

You also need the following general consumables for servicing your Triumph Bonneville T120.

Product	Thumbnail	Description
Chain lubricant		The chain needs to be lubricated every 800 km/500 miles (or more, if it gets wet/dirty), with variations recommended between manufacturers. Motul chain paste is cheap and well-loved.
Chain cleaner brush		A chain cleaner brush makes cleaning off grime and then distributing new lubricant much more easy.
Paddock stand		Lubricating the chain and changing the oil both become a lot easier once you use an affordable paddock stand (not necessary if you have a center stand).
Cable lubricant		Remember to lubricate your clutch cable (and brake cables if you have them) with a cable lubricant. Protect All Cable Life is a good general-purpose lubricant.
Grease		Get a good lithium soap based grease for lubricating major components like your side stand, centre stand, and bearings.

Maintenance Schedule for Triumph Bonneville T120 Ace

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

There are two kinds of service interval: every a) distance or b) time period. In each case, it’s the earlier of the two that’s most important.

Part of the below table includes checks you should do every day.

Operation Description	Every	500 (800) 1 month	Year	10,000 and 30,000 (16,000 and 48,000)	20,000 (32,000)	40,000 (64,000)
Lubrication
Engine – check for leaks	Day	•	•	•	•	•
Engine oil – replace	–	•	•	•	•	•
Engine oil filter – replace	–	•	•	•	•	•
Fuel System and Engine Management
Fuel system – check for leaks, chafing etc.	–			•	•	•
Throttle body plate (butterfly) – check/clean	–			•	•	•
Autoscan – Carry out a full Autoscan using the Triumph Diagnostic Tool (print a customer copy)	–	•	•	•	•	•
Air cleaner – replace	–			•	•	•
Fuel filter – replace	–				•	•
Throttle bodies – balance – 1200 cc engines only	–			•	•	•
Fuel hoses – replace	Every 4 years regardless of mileage
Evaporative loss hoses* – replace	Every 4 years regardless of mileage
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.	–			•	•	•
Coolant level – check/adjust	Day	•	•	•	•	•
Coolant – replace	Every 3 years, regardless of mileage
Engine
Clutch cable – check function and adjust as necessary	Day	•	•	•	•	•
Valve clearances – check	–				•	•
Camshaft timing	–				•	•
Wheels and Tires
Tire wear/tire damage – check	Day	•	•	•	•	•
Tire pressures – check/adjust	Day	•	•	•	•	•
Wheels – inspect for damage	Day	•	•	•	•	•
Wheels – check wheels for broken or damaged spokes and check spoke tightness (models with spoked wheels only)	Day	•	•	•	•	•
Wheel bearings – check for wear/smooth operation	–	•	•	•	•	•
Steering and Suspension
Steering – check for free operation	Day	•	•	•	•	•
Front and rear suspension – check for damage/ leaks/smooth operation	Day	•	•	•	•	•
Fork oil – replace	–					•
Steering head bearings – check/adjust	–	•	•	•	•	•
Steering head bearings – lubricate	–				•	•
Brakes
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	Every 2 years regardless of mileage
Drive Chain
Drive chain slack – check/adjust	Day	•	•	•	•	•
Drive chain – wear check	Every 500 miles (800 km)
Drive chain – lubricate	Every 200 miles (300 km)
Drive chain rubbing strips – check	–	•	•	•	•	•
Electrical
All lights, instruments and electrical systems – check/adjust	Day	•	•	•	•	•
General
Instruments, chassis ECM (if equipped) and engine ECM – check for latest calibration download using the Triumph diagnostic tool	–	•	•	•	•	•
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	–			•	•	•
Carry out all outstanding Service Bulletin and warranty work	–	•	•	•	•	•
Carry out road test	–	•	•	•	•	•
Complete the service record book and reset the service indicator (if equipped)	–	•	•	•	•	•

* Evaporative system fitted to models for certain markets only.

General information about the Triumph Bonneville T120 Ace

The 2019 Triumph Bonneville T120 Ace is purely a styling exercise. Underneath all the custom parts is a standard Bonneville T120 Black. That means you get the 1200cc High Torque engine, along with modern electronics ranging from ride-by-wire to a USB charging outlet. However, one could argue that the shorty fender from the Triumph accessory catalog is functional.

A 25.5° steering-head angle and 18-inch front wheel give it 4.14-inches of trail and an eager demeanor in the curves in keeping with its stoplight-racing roots. A 17-inch rear rim rounds out the rolling chassis, and of course, the look of the laced wheels accentuate the dated panache of the bike and mount a 100/90 up front and a 150/70 around back.

Manual for the Triumph Bonneville T120 Ace

The above maintenance schedule comes directly from the user’s manual for the Triumph Bonneville T120 Ace, which is available on the Triumph website.