Originally Posted by Doge

Don't make me count. You can get DA Combination 4 - 12-13-14-15-16-17-18*-19*-21*-23*-25*T
Or 12-13-14-15-16-17-19*-21*-23*-25*-28*T
I think the 18-19-21 could be put on the 12-28 for a 12-13-14-15-16-17-18-19-21-25-28 which is for real purposes quite useful.

2018-2019 SHIMANO Product Information Web

I road today Recon 14,15,16,17,18,19,20,21,23,25,27 but they change.

Ultegra has
Combination 5 14-15-16-17-18-19-20-21-23-25-28T
Combination 4 12-13-14-15-16-17-18-19-21-23-25T