New 20 ounce tumblers available now! Forum donation credit with purchase. https://www.wildguzzi.com/Products/products.htm#Tumbler
One of my friends who is a very good engine tuner found some KTM adjusters with the little elephants foot on them. I think they were 5mm with a very fine pitch. He fitted them to a highly developed XR500 engine. Cheers, voncrump