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shimano MF TZ500 7 Speed Freewheel£17.50
The Shimano Tourney 7-Speed TZ21TZ31 freewheels ensure a smooth transition when shifting up or down the block. With the TZ31 you can conquer the hills using the super-low 34T gear. The TZ21TZ31 freewheels are renowned for there reliability and smooth shifting.nbspSuitable for mountain bikes and a wide range of other cycles.