MTB cranks and chainrings

The Shimano TOURNEY FC-TY501 3 x 6/7/8-speed square crank with chain guard offers maximum drive efficiency and ensures optimum rhythm. Product features - FC-TY501 48/38/28 Use: MTB, Trekking Group: TOURNEY Model: FC-TY501 Gradation: 48-38-28T Crank Arm Length: 175mm Threaded BB shell width: 68 / 73mm Gear: 3 x 6/7/8-speed Construction: Square Q-Factor: 185.5mm Compatible Chain: HG/UG 6/7/8-speed PCD: Riveted Chain line: 47.5mm Chain Protection Ring: Yes Crank Arm Length (choose variant) 170mm 175mm Material Aluminum Steel Color silver Scope of delivery 1 Shimano TOURNEY 6/7/8-speed Crank FC-TY501 Square 48/38/28 Bottom Bracket BB-UN100 Square BSA not included!