With a regular hex and special ball-end side on the hex key

Emgo Cartridge Oil Filter for Ducati

and Sportster XL 1200 Custom

Series 2054 Micro 0

Instruction available here

wannabe choppers ball end clutch lever assembly Handlebar diameter:1" (25.4mm) With a regular hex andWannabe Choppers Ball End Clutch Lever Assembly for Motorcycles The Wannabe Choppers handlebar controls are made in small exclusive productions. These sand cast products true handmade pieces of art with a not so everyday design ready to spark your imagination. Perfect for any classic chopper or bobber project. Match with the Wannabe Choppers Wannabutton handlebar switches for a killer look! Semi unpolished stone washed cast finish 3 8" cable hole