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 Internal Geared Hub SG C3000 7C SG C3001 7C and Shift Lever SL 7S30 SL C3000 7 7 speed Original parts| | - AliExpress
Shimano Nexus SG-C3000-7R 7-Speed Internally Geared 36h Rear Roller Brake Hub Kit, Small Parts Included | Tree Fort Bikes