retrobikefranken - Shimano Nexus Inter 7-speed gear hub SG-7C18
Gear Rear Hub Nexus Sg-c3000-7r Inter 7 Speed Bearing Bike Hub For Roller / V Brake City Touring Trekking Road Bike Hub 32 Holes - Bicycle Hubs - AliExpress
Shimano Nexus 7 Gear Adjustment - YouTube
Universal Cycles -- Shimano Nexus Inter-7 SG-7R45-7 Small Parts Kit [KSM7R45N010H]
MicroShift Compact Twist Shifter 7 speed Internal Geared Hub Shifter for Shimano Nexus Inter 7 - Walmart.com