Does anyone know which blankers fit the tracer rear swing arm? I've just brought a number of blankers and none of them fit! - no chace (10mm), bolt size is too large and willl not fit! Got the 10mm ones again, looks like the correct size but my problem is that once you take the bosses out there is a 5mm unthreaded area where the bosses go in. Surely you need a thread to start from the top so you can get the bolt to screw in? Could you guys have a look on your frame, do you have an unthreaded section just at the top of the two holes?

I'm going to go mad, searched but there's no information in the archives.