I’m a very casual biker (due to family mostly MTB with kid trailer) but I’d like to use my old racing bike (a cheap one with a Shimano 105 setup) along with a direct trainer. Was aiming for the Tracx Flex Smart S (new version) but my new favorite is the brand new elite suito (still a gamble). The Suito comes with 11gear pre-installed. Which is a great saving of money (gear, tools) and especially time (no possibility to fail).
However, my 109 has only 9gears on the rear wheel. I guess the trainer wouldnt work with adjustments. Would be spacer rings and tools be enough or do I need a new set of gears? The bike is only needed for the trainer if that is of any help.