There are 11 products.
Shimano Tourney MTB chainwheel 7 - 8 speed model TY501 with 175mm cranks. Recommended BB 122.5mm square.
Shimano Tourney ty501 triple chainwheel black with 48-38-28T and 175 mm aluminum cranks. For transmissions 6-7 or 8 speed
Shimano chainwheel Model TY301 Crank with 42-34-24 teeth and cranks 175 mm Recommended b.b. 122.5mm