Barrel B Twinn Exhaust for Triumph Street Twin 900

The B Twinn Exhaust for Triumph Street Twin 900 is Barrel's twin-outlet line, built for modern classics where the exhaust is part of the silhouette. This version is made for the Triumph Street Twin 900.

As a slip-on it keeps the factory headers and catalytic section, so the character stays recognisably your bike's, just with more depth behind it. It is the reversible option: keep the stock can on a shelf and the bike goes back in an afternoon.

Fitment guidance

Listed by Barrel for the Triumph Street Twin 900. Model years and regional variants do differ, so if you are unsure, send us your registration year and a photo of your current exhaust and we will help you check before you order.

Good to know

• An aftermarket exhaust is louder than stock. Check what your local rules allow.
• Free-flow systems can change fuelling. On some bikes a remap gets the most out of the change.
• We are an authorized Barrel dealer. Every unit is genuine, supplied direct by Barrel.