Questions about Garmin Flux S Smart T2900S

I dont know if 12mm but it comes with 3 or 4 different sizes. My bike is a road with disc breaks and thru axle and the adapter came with it. But funny because I think somewhere it says it comes without or must be sold separately but I think they started sending it together because thru axle is now more or less standar.

The following cassettes are compatible with the Garmin Tacx FLUX S Smart Trainer: - Shimano and SRAM: 8-, 9-, 10- and 11-speed cassettes. No spacer ring is required for 11- and 12-speed cassettes, while a spacer ring can be used for 8-, 9- and 10-speed cassettes. - Separate freehub bodies are required for SRAM XD/XDR and Campagnolo cassettes and must be purchased separately. It is important to note that no cassette is supplied with the trainer and must therefore be purchased separately.

The Tacx Flux S Smart T2900 and the Garmin Tacx Flux S Smart T2900S are essentially the same product, with some minor differences in branding and marketing. ### Main differences: - Brand name: The main difference lies in the brand name. The Tacx Flux S Smart T2900 is sometimes still marketed under the Tacx brand, while the Garmin Tacx Flux S Smart T2900S is marketed under the Garmin brand, as Garmin has taken over the Tacx brand. - Product ID: The product IDs may vary slightly, as in the case of "T2900S" vs. "T2900S.61", but this does not mean any functional differences in the product itself. - Accessories and software: Both models come with similar accessories and software connectivity, including ANT+ and Bluetooth connectivity as well as compatibility with various cycling apps such as Zwift and Tacx Training App. ### Conclusion: This is the same product with the same specifications, such as a maximum resistance capacity of 1500 watts, power measurement accuracy of +/- 3% and the ability to simulate inclines of up to 10%. The price difference may be due to various factors, such as the retailer, region or special offers, but there are no significant differences in the products themselves.