Joe, thank-you! Helpful advice when I purchased my 29 yr old daughter's tires a few Christmases back, and today great service when I had a "cranky" bike. Called a more convenient bike shop at first, but was unimpressed with their ability to understand or give clear answers. A friend reminded me of Sun Cyclery, and BAM, I'm glad he did. As an avid commuter cyclist, I feel like i've returned home. Thank-you Joe. Thank-you Sun Cyclery.