I've been planning to purchase a Sram Rival equipped road bike which is going to have a compact crankset and a 11-28 cassette. I'm going to use it mostly for casual road riding and some races. However I have some thoughts of a cross-Europe tour which made me think about the gearing. 32 gear inches might be too little for some huge ascents with load so I've been thinking of putting a triple crank to the bike for this possible tour.
The thing is, I want to keep the costs as minimal as possible. Best option would be touring specific bike but I don't have the money to buy yet another bike. I do have a mountain bike that has a Shimano Deore triple crankset and derailleur. I believe that they are compatible with the 10-speed drivetrain but Rival shifters can't of course handle triple.
Are there any cost-effective ways to utilise the Deore crankset? Would there be any sense using the crankset and installing separate bar-end shifters for the front? If it's possible, which bar-end shifters would work? Or could I possibly use also the shifter from my mountain bike. I realize that it is made for different bar diameter but maybe it could be fixed some way?
So what do you think? All ideas are welcome.