SHIMANO TOURNEY MF-TZ500 MF-TZ31 7v 7 Speed Cassette Mountain Bike Freewheel Metal Thread Sprocket 14-28/34T Original Parts - AliExpress
Shimano Tourney Tz500 Tz31 7V 7 Speed Mountain Bike Bicycle Cassette Freewheel Metal Thread Sprocket 14-28/34t Original Parts - China Shimano Bike Parts, Freewheel | Made-in-China.com