I'm an old dude (61) from Hawaii. I ride 3x a week (used to be 5x but, again, I'm old). I use Strava, and don't have any significant complaints about it. I currently am riding a Giant Defy 5, an entry level road bike. Have close to 15k miles on it (with the original chain and cassette) and plan to replace these in the coming days. I've replaced a chain and cassette before (on a Giant Escape 3) but I have to find out if I can use the same cassette removal tool(s) for the current bike. You would think because both bikes are Giants, you'd need the same tool(s), but I've discovered that's not always true. Anyway, glad to be here, and I look forward to getting to know folks here. Aloha!