Anyone know if the Shimano 105 5800 chainset is compatible with 10spd (tiagra) ?
You almost certainly can. It’s fairly common (for those into bikes) to mix and match chainsets from one groupset or brand with others - look at the popularity of crank-based powermeters for example. The front derailleur is pretty primitive after all.
Really wasn't sure. I went from 8spd to fixed. Then retro build, so back to 8spd. Now this. I've basically missed out the whole 10spd-11spd part of bicycling evolution.
You almost certainly can. It’s fairly common (for those into bikes) to mix and match chainsets from one groupset or brand with others - look at the popularity of crank-based powermeters for example. The front derailleur is pretty primitive after all.