SPROCKET SPROCKET COMPATIBLE WITH MODEL: CS300 301 305 306 330T 340 341 345 345 346 355T 360T 3000 3350 3400 3450 BELL INDEX: 59.7mm BORE THICKNESS: 13 mm TOTAL HEIGHT: 23.5mm 3/8" (91) 6 TEETH ECHO CODE: 106906X ORIGINAL CODE: AT