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Service bulletin SMT-SB-521

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 id10192899
Published by NHTSA2021-05-10
Manufacturer's numberSMT-SB-521
Manufacturer's date2015-01-01
NHTSA componentEQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

We have identified a need to carry out the following checks at PDI or at the motorcycles next visit to the deralership: To check the the tqoue of the six M4 screws on the alternator de-coupler.

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

Equipment and accessories

Vehicles listed
TRIUMPH TIGER 800 XRX LRH2016, 2017 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH TIGER EXPLORER SPOKE ABS2015 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH TIGER EXPLORER XC2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH TROPHY SE2012, 2013, 2014, 2015 (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
20145422014-12-03. Accessories
12V5920002012-12-11. EQUIPMENT:OTHER:LABELS

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-COM012023-12-11. Service bulletin. Dealer notice announcing the availability of Diagnostic software 2023-06 and dealers should begin using it immediately.
SMT-COM012023-02-06. Service bulletin. Dealer notice reminding of the new California Prop 65 regulation.
227142023-01-03. Service bulletin. Dealer notice announcing the availability of Diagnostic software 2022-11 and dealers should begin using it immediately.
226512023-01-03. Service bulletin. Dealer notice announcing the availability of Diagnostic software 2022-10 and dealers should begin using it immediately.
20680 SVC2022-05-31. Service bulletin. Triumph has released Technical Bulletin 222 including 8 subjects across a range of models.
SMT-TN-1402021-05-10. Service bulletin. The Tiger Explorer is now equipped with either cast or spoked wheels. The Tiger Explorer XC will be equipped with spoked wheels, hand guards, sump guard, engine guards and fog lights. The tyre options and tyre pressures for both types of wheel are the same as described in the Owner Handbook and Service Manual.
SMT-TN-1392021-05-10. Service bulletin. A new sliding selector shaft and detent assembly has been introduced on the above models from engine number 563847. The new shaft is secured into the crankcase with E-clips and is not retrofittable. When ordering replacement parts, always refer to EPC.
SMT-SB-4862021-05-10. Service bulletin. We have identified that the punch mark used to align the transmission linkage has in some instances been incorrectly positioned on the above models. Dealers are requested to check, and if necessary, adjust the gear change pedal position.
SMT-COM09-25MAR22020-04-13. Service bulletin. Dealer notice announcing the availability of Diagnostic software 2020-4.3 available and dealers should begin using it immediately.
SMT-COM06-17MAR22020-04-13. Service bulletin. Dealer notice announcing the availability of Diagnostic software 2020-4.2 available and dealers should begin using it immediately.