Spacing the rear hub is fine, I'm running a conversion with 130 mm rear dropouts and Miche track hubs using spacers and it's been trouble free for a year or so. The spacers are actually slightly offset, so 2 mms more on one side, to allow me to get a decent chainline.
Spacing the rear hub is fine, I'm running a conversion with 130 mm rear dropouts and Miche track hubs using spacers and it's been trouble free for a year or so. The spacers are actually slightly offset, so 2 mms more on one side, to allow me to get a decent chainline.