fadini chain tensioner with pinion 1/2" z20 support bracket 2053LBrand: FADINISKU: 2053L€91.12genius-10-telecomandi-4-canali-868mhz-jlc-kilo-tx4-6100333FADINI - CHAIN TENSIONER WITH SIMPLE 1/2" Z20 PINION AND GALVANIZED STEEL SUPPORT BRACKET WITH ADJUSTING SCREW2053L