Road bike wheels are typically 700c size, Even though the lesser 650b size are available on some scaled-down frames. Despite size, both are offered as carbon or alloy selections. A further bike which is get rid of fat, in its situation 300g. The Gen 7 does this in large part https://cervelo-road-bike40486.ja-blog.com/26645843/helping-the-others-realize-the-advantages-of-kids-bicycle