Technically each TrueTrainer is compatible with each type of cassette that fits on a Shimano Hub.
Depending on the model, the TrueTrainer comes with our own TrueKinetix cassette, which is optimized to use in combination with virtual gears. This accounts for the 2022 models Swift and Max and 2023 model 6.2. This pre-installed cassette is optimized for working with virtual gears correctly.
Use of bigger cogs lead to less functionality of the TrueTrainer. The TrueTrainer is optimized to work with 11-25 cassettes in combination with virtual gears. Cassettes with a bigger range might encounter problems with 'kicking in'.
The TrueTrainer Base (2022) en 4.2 (2023) models come without pre-installed cassette and without virtual gears. As a result, these models are less suitable to be used with light resistance gears, like in the mountains.
These models are compatible with our own TrueKinetix cassettes and hubs. These can be ordered in our shop. Please take in mind that for 8-, 9- & 10 speed cassettes a 1.8mm spacer ring is required.