I make caliper spacers to you specification, these are mainly for Japanese calipers with 14mm dowels and M10 bolts. just let me know the length (offer your brake caliper up to the disc ensuring the brake pad material is close to the outside edge of the disc (don't let it overhang the disc as when the pads wear they will touch and will not longer push against the disc and you won't have brakes!) let me know if you want the ends flat, 14mm recess or 14mm spigot, you can mix and match e.g. recess on end and spigot on the other end :)