Many people think it is from a Suzuki RV90, but I am selling as an unknown exhaust. However, here is a comment from a Suzuki Facebook Group: "
It’s an RV90. The Rv50 pipe is on the left side of the bike and the 125 is at a different angle where it attaches to the engine.
120 cm total length. Header flange mounting holes 5.5cm on center Please measure your need before ordering.