EuroJamb bsatimingdisc Factory-style Degree Wheel BSA 441 500 650 750 timing tool So pretty you may want to frame it You will be all the envy of your tuner buddies Fashioned &#39;in-replica&#39; of the metal degree wheel BSA supplied back in the day Diameter is 6 1/2"/165mm Plastic construction, will not dent or bend