For 2016 the Tiagra range has been bumped up to essentially contain all the guts of 2015 105. Likewise the 2016 105 has been bumped up to 2015 Ultegra level, so while it doesn't have the badge it is the equivalent of 2015 Ultegra, but more affordable and more badass in black. That 105 chainset is one of my favourite road chainsets
For 2016 the Tiagra range has been bumped up to essentially contain all the guts of 2015 105. Likewise the 2016 105 has been bumped up to 2015 Ultegra level, so while it doesn't have the badge it is the equivalent of 2015 Ultegra, but more affordable and more badass in black. That 105 chainset is one of my favourite road chainsets