Comparison : Item # HT50P15, No. 50 - 5/8" Pitch - Triple Split Taper Sprockets
Item # HT50P16, No. 50 - 5/8" Pitch - Triple Split Taper Sprockets
Item # HT50P17, No. 50 - 5/8" Pitch - Triple Split Taper Sprockets
Item # HT50P18, No. 50 - 5/8" Pitch - Triple Split Taper Sprockets
Item # HT50P19, No. 50 - 5/8" Pitch - Triple Split Taper Sprockets