I am putting togeather a new Trek Crockett frame and want to put Rival 1 on it. My question is is the RH Rival 22 shifter the correct shifter to use with the Rival 1 long cage 3.0 derailleur? The cassette is 11-42. I looked on SRAM website and it appears it is. Just wanted to check before I buy on off eBay. Thanks in advance.