Over on the eastside there is Performance bike shop, and another one in Tacoma that I go to, all the others listed are good but I think he will find the best prices at performance, along with lifetime service tuneups, just in case he needs that. I just went all over Puget Sound with a friend and can honestly say we found the best prices at performance.
15230 NE 24th
Redmond Wa
425-643-8122