Be very wary,
I think it was " something motorsports" I purchased a stator, brand new " oem replacement stator for rm125,1979-80"Circa $150:00 delivered. Unfortunately it was missing the extra wire besides the 3 pin plug. I think it might be for rm80.Look closely at photo of stator and ensure the extra wire is there. I think "partspitstop.com" can still get NOS stators for about $350 plus $50 postage. I lucked out when watching a wrecker in U.S. with NOS stator start at $280.00 buy it now ( nearly bought it). It went down to $85 buy it now and I snapped it up. You win some, you lose some.
Cheers Chris