Powell Peralta clamp-on chain tensioner for your hardtail bobber. 1/2" thick steel bracket, TIG welded and powdercoated. The spring is hand wound spring stainless steel for unsurpassed tension. Universal to any chain size or belt drive. Available for 1", 1.125" (1 1/8th), and 1.25" (1 1/4th) diameter tubing sizes.
This tensioner is used to keep the chain tight automatically which avoids chain slap which can cause drive issues as well as damage to fenders and frames.
Typically ships in about 1 week.