The Golden Wrench: The Servicing of an Internally Geared Hub
Shimano Internal Gear Hub Service
I'm going to oil bathe this shimano nexus 7.. the proffesional bike repair person I asked to do this for me sprayed wd40 in it, €80 later I decided to just buy
Shimano Internal Gear Hub Service
Nexus Oil Special Grease For Internal Gear Hubs - 2.5kg - Bicycle Oil Lubricant - AliExpress
High Quality Bike Hub Grease Composite Aluminum For Shimano Nexus Hub Body Mineral Oil Mountain Bike Freewheel| | - AliExpress