This post and video provide a complete guide for choosing the best child bike seat or trailer for your baby, toddler, or small child. A quality child bike seat makes it easy and safe for you to take your child with you on bike rides. But the choices can be overwhelming. This post lays out the choices simply and clearly. We explain the differences between, and the pros and cons of, the following: rear-mounted child bike seats; front-mounted child bike seats; and bike trailers.