New Zongshen RX3 (ZS250GY-3) Dual Sport

[Weldangrind]

Originally Posted by jimjr21

25.6hp @ 8994 rpm
This is a brake dyno of some type. Easy to tell by the rpm time trace. Engine is at maximum rpm then is pulled down to lower rpm over 6 seconds. These types of dyno's are hard on engines.

I have no personal experience with dyno sheets, but I've reviewed several over the years. I am struggling to understand the inverse curve at the bottom of the graph, and I'm failing to get which curve represents torque.