Weasler Idler Sprocket, 17‑Tooth, #50 Chain, ½″ Bore, 1⁄4″ Keyway (09‑20501708) MSRP: Was: Now: $37.81
Omni Gear 5013W #50 Roller Chain Idler Sprocket, 13T & 5⁄8″ Bore (5013W) MSRP: $11.59 Was: Now: $6.46
Gates DriveAlign Automatic Belt Drive Tensioner, Steel Smooth/Backside (90 mm x 17 mm x 39.5 mm) (36234) MSRP: $81.29 Was: Now: $48.82