These chrome upswept exhaust adapters allow you to run vintage style mufflers / silencers on your modern Triumph Bonneville or other motorcycle! One end is 1-1/2" inside diameter, and the other is 1-1/2" outside diameter, allowing you to run classic styled mufflers on your Hinckley (modern) Triumph. T100 T120 Bonneville, Thruxton, etc. These are sold in pairs. Find more motorcycle exhaust hardware at Lowbrow Customs Store now.