Shimano Nexus SG-C3001-7D Internal Gear Hub - Centerlock - 10x135mm Nut Type - 7-Speed - black
Shimano Nexus 7 Axle Unit Assembly Instructions - Sheldon Brown
Shimano Nexus 7 Speed not shifting. That white part is just moving up and down (with force applied). Can't find repair guide online and I don't want to take it anymore apart