Leaf 6 speed freewheel.

* Shimano MF-TZ500-6 Freewheel, 6 Speed, 14-28T
* Ideal replacement for mountain, hybrid or older road bikes
* A reliable screw-on 6 speed freewheel
* Chain Compatibility: 3/32"
* Gear: 14, 16, 18, 21, 24, 28
* Net weight: 350 grams