How to install Transmission?
Transmission is available in the official Kodi repository which is included by default in Kodi. You can install this addon by going in Kodi to System >> Settings >> Addons >> Get Addons >> XBMC.org Addons or Kodi.tv Addons
About SuperRepo and Transmission
SuperRepo does not maintain Transmission. We only provide an automated index for Kodi users to have easy access to Transmission and other addons for Kodi. We are not affiliated with the developers (Correl Roush) and do not provide help for this particular addon.