I'm considering a custom gear combination for my Century-ride bike. The bike has a 50-39-30 Shimano 105 triple.
I plan to use the middle chainring 90% of the time. The large chainring would be used for traveling down longer hills. The small 30t chainring is my bail-out gearing.
I'm considering this combination 11-12-13-14-15-16-18-21-24-27. I have all the parts except the 18t gear. I would expect to use 14-15-16-18 X 39t most of the time.
Shimano sells an Ultegra 11-12-13-14-15-17-19-21-24-27. I like having a 16 and the 18 looks more usefull than the 19.
Will this combination shift well with an Ultegra GS long reach RD?