This is a super little chain tensioner -

small and compact to fit modern small dropouts

14mm centre hole with sacer to fit 10mm axles if you need to

comes with 3 lengths  of allen bolt for different length dropout slots

CNC cut out sections

Alloy construction

Can be used left or right hand side

You get ONE single tensioner.

Colour: anodised Gold

[ all colours pictured for reference]