Kids bikes have greatly improved in the last decade or so. Bikes that used to be a bit of an afterthought now receive a great deal of focus, like the Marin Muir Beach girls bike pictured above. This is essentially a scaled down version of an adult cruiser made by Marin. With a relatively lightweight aluminum frame and matching fenders the bike is lightweight and functional. Right now this bike is on sale for just $272, down from the regular price of $320 - at the sale price it might just make the perfect gift for under the Christmas tree.