View Full Version : Exhaust

11-25-2014, 8:19 AM
What's the exhaust diameter on a triumph 650 is it 1 3/4 ?going to make a pipe bending die at work and I don't have the bike to check size.

11-25-2014, 8:49 PM
It was 1-3/4" O.D. on the first pre-unit 650 engines.
In later years, that was reduced to 1-3/8", because it produced more torque and power.