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Service bulletin SMT-TN-154

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10192916
Published by NHTSA2021-05-10
Manufacturer's numberSMT-TN-154
Manufacturer's date2013-12-01
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

If a customer reports excessive top-end engine noise on an engine fitted to the above models up to VIN 602960, the dealer is requested to replace the cylinder head with a new cylinder head and camshaft drive chain tensioner following the procedure listed below.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
TRIUMPH TROPHY2000
TRIUMPH TROPHY2012, 2013, 2014
TRIUMPH TROPHY SE2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH TROPHY SE A12015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20V1500002020-03-17. ENGINE; ELECTRICAL SYSTEM:WIRING; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
20140082014-01-16. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SMT-COM012022-09-26. Service bulletin. Dealer notice reminding of the new California Prop 65 regulation.
SMT-TN-1662021-05-10. Service bulletin. Crackshaft position sensor/ignition pickup, front brake hose p-clip, headlight fixings, reed valve cover torque fixing, engine bar plugs, lower yoke wire guide, front fork oil level and volume, motorcycle assembly guide update-backrest bar, rear bevel box parts kit, and pannier frame.
SMT-TN-1532021-05-10. Service bulletin. If a Trophy or Trophy SE customer reports excessive top-end engine noise (a ticking and or knocking noise) on an engine fitted to the above models up to VIN 602960, the dealer is requested to arrange the return of the motorcycle to Triumph Motorcycles to permit factory repairs. This will include either a modification to the existing cylinder head or replacement cylinder head and replacement camshaft drive chain tensioner.
SMT-TB201-20DEC22020-01-21. Service bulletin. Technical Bulletin 200 provides instructions that apply to Steering Lock and Keys, Neutral Position Adaption, Triumph Diagnostic Tool - End of Support for Microsoft Windows 7®, Triumph Diagnostic Tool - Internet Connection and Minimum eEquipment Requirement, Torque Change, Clutch Cable, Camshaft Frame Installation, Immobiliser Antenna Wire Routing.
SMT-TN 159 1 Oct2017-11-03. Service bulletin. Technical service bulletin 159 addressing 19 service instructions, some of which apply to all models. Instructions relate to piston and piston top ring, alternator rotor retaining bolt, rear brake hose guide, auxiliary lights, headlight spares, gear selector drum and neutral light switch, pulser ring fixings, side stand fixing, battery terminal cover, heated grip fixings, headstock bearing adjustment, front and rear diretion indicator fixings, swinging arm, throttle linkage cleaning, headlight label, clutch lifter piece, rear brake caliper bleed nipple and owner's handbook.
SMT-TN 155 1 Feb2017-11-03. Service bulletin. Technical service bulletin 155 addressing 9 service instructions, some of which apply to all models. Instructions relate to the upper drive belt guard, catalytic converter mounting bracket, torque figures updates, horn fixing, centre stand fixings, front brake hose clip, clutch cover kits, breather cover fixings and audio systems.