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Sram S7. Смотреть видео: How To Adjust Gear Hub Of A Bicycle SRAM SPECTRO S7 Hub Gear Bike Service Setup DIY, SRAM Sachs Click Box Installation And Adjusting, Nabenschaltung Richtig Reinigen Schmieren Fetten, Sachs SRAM Spectro S7 Repair 7 Speed Hub Service Adjust Shifter.