SPROCKET SPROCKET COMPATIBLE WITH MODELS: 305 340 345 350 350 352 355 360 415 450 451 500 3/8" (91) 6 TEETH INNER BOWL: 68mm Bore: 13mm Overall height: 30.7mm SELF-ALLINATING RING: ROLLER CAGE: SHINDAIWA CODE: R370374 ORIGINAL CODE: AT