I am new to the road biking scene. On the few club rides I have been on I notice that many riders stay in the big chainring while climbing hills. Myself, I shift to the small chainring (34 teeth on a compact double) and spin up the hill, very often passing the more experienced riders who are pedalling their large chainring with some difficulty. I even get complimented on my climbing skills. Why do people use the big chainring on climbs? Does it make your stronger?