Teeth!
The BDP-11 have ten teeth and the BDP-12 have eleven: see description for compatibility.
SJS have Tacx T4090 but some sources list them as being 10 speed, no mention of 11.
The Tacx website just lists compatible groupsets (no mention of speed) so you'll need to compare with your current wheels.
Too much effort. Gonna order 11 tooth and hammer it until it fits
@PhilDAS started
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Teeth!
The BDP-11 have ten teeth and the BDP-12 have eleven: see description for compatibility.
SJS have Tacx T4090 but some sources list them as being 10 speed, no mention of 11.
The Tacx website just lists compatible groupsets (no mention of speed) so you'll need to compare with your current wheels.