These cranks seem impossible to get off – especially as YT don’t supply the special crank extractor tool that is supposed to come with them (and no-one in the UK stocks them!). I can see this being a massive problem for any YT or Tues owners when it comes time to change a worn BB or chainring (or to fit a bash guard like me).
When I contacted YT they seemed to think that you can use one of these: http://pedros.com/products/tools/pedal-crank-and-bottom-bracket/universal-crank-remover-with-handle/ which quite frankly is a load of tosh.
The problem is that the outer thread which the tool pulls/pushes against is too narrow (ie. you cant get enough purchase) and it starts to pull the thread out. I also think that YT have installed the cranks without any grease, as even when we created a similar tool, they wouldn’t budge. The removal instructions are here for anyone who may be interested: https://ytmedia.azureedge.net/pdf/manuals2016/capra-cf-pro/e_thirteen_trs_crankset-manual.pdf
The only way I can see to get these off is to cut them off. I’m severely pissed off about it, and I suspect a few others will be when the time comes. I’ve complained to YT (why supply a bike with these cranks knowing you can’t get hold of the tool to remove them). I await their response…