Shimano XT Thumb Shifters are perhaps the finest bicycle component ever engineered. For the bicycle tourist riding a mountain bike style bar Shimano XT Thumb Shifters offer the perfect blend of functionality, reliability, adaptability, and ease of use.
I am a big believer in buying used bicycles. The last time I bought a new bicycle was in 1991 while working as a mechanic/sales person at a Cannondale shop. I sold the bike to myself. Since then I have been buying used bicycles on ebay, craigslist, and at garage sales.