Front stud installation includes the stroke options listed here: 0.5 -- 1.0 -- 1.5 -- 2.0 -- 3.0 -- 4.0 -- 5.0 -- 6.0 -- 7.0 -- 8.0 -- 9.0 -- 10.0 -- 11.0 -- 12.0 Use the drop down box below to select the stroke that suits your needs.