The 14-34 tooth Shimano freewheel for eZip and IZIP electric bikes is a high-quality replacement item. This Currie OEM 7-speed freewheel is the proper size for the 3/32 drive chain used on so many eZip and IZIP models. Replaces Shimano models MF-TZ31 and MF-TZ37.
Please refer to the Compatibility tab before ordering.