Up for grabs is a new auto advance unit mounting bolt. A bolt must be used to secure your advance unit or else it will fall out (not good). In this listing you can choose from many types of advance unit bolts that can be used on many Triumph, BSA and Norton motorcycles including singles, twins and triples. Please view all part numbers to ensure the best fitment.

Use the drop down menu below to select which type of advance unit bolt you desire