The MTS does not have a seal, and the Superbikes/Streetfighters use a 14mm OD seal, (so the DP seal would be 14mm too)...My buddy at Ducati searched and the best he could come up for an interchange was the MTS1000, But that does not fit. The problem is the shafts are machined differently...The MTS needs a 13mm seal...The seal company and all the searches I have done show that's an extremely rare seal size, in fact I never found a reference to it being in use anywhere...but it can be made in a week. I also imagine you could machine a special nut that is machined to accept a seal, but you rapidly run out of room to space all this...So for me the custom seal seems the best choice verses machining my primary shaft to fit a standard seal. I am getting really tired of waiting for parts only to have nothing fit...At least the weather sucks now and it only takes 3-5 days for parts to arrive from BolongaAny possibility that the seals you're trying to make and Bursi uses could be an actual DP replacement part?
Bursi uses STM clutch I believe and no, they never answered me but it could also be due to Email filters I suppose.