Heavy gauge 6061 T-6 aluminum

Parkerized reproduction of OEM# 223-15 locknuts used on 1915-1939 Singles

11/16-20 thread

75's 80's with Aluminum Heads

Please note if you use older classic bikes from mid 1980s and earlier you should update the charging systems to a modern voltage regulator

SS2 Solo Seat Springs - Barrel Style - 4 inch Stainless Steel Subcategory_Gas Tank Mounts & Hardware Heavy gauge 6061 T-6 aluminumNo more bottoming out on cheap, imported seat springs! 50% stiffer than other seat springs on the market Made from stainless steel, eliminating the need for shoddy chrome plating Ground flat on top and bottom to assure proper alignment 4" total height 100% Made in USA