Originally Posted by
cyccommute
An XT will work fine with an 11-34 and any road shifter. You could down spec to a Deore if you want a less expensive alternative. Either will work.
+1 on the Deore. XT is nice, but the reliability and durability of the Deore is just as high for half the price. I spent around $50 on mine, and about $40 for my 11-32 SRAM PG970 cassette.