# Service bulletin SB633

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.

- Type: Service bulletin
- NHTSA id: 11016141
- Published by NHTSA: 2025\-04\-01
- Manufacturer's number: SB633
- Manufacturer's date: 2025\-03\-26
- NHTSA component: ENGINE

## NHTSA's summary

Service Bulletin 633 instructs dealers to release the torque of the Exhaust Butterfly Valve Spindle Nut and re\-torque it.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016141-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016141-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2025 TRIUMPH SPEED TRIPLE 1200 RS

## Other bulletins for the same vehicles and component

- [COM8\_30330](/bulletins/11016147.md), 2025-04-01, Service bulletin: ENGINE. Dealer notice advising of the release of SB633.

JSON: [/v1/bulletins/11016141](/v1/bulletins/11016141)

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