The clear assumption is that any bike trailer you buy will offer reasonable protection for your child. The choices you make should be based on how you expect to use it.

Size

Do you expect to have two kids, toys, and a picnic basket in the trailer? Not all trailers are equal, and you may find that many are uncomfortable for your pair. If you do not own a garage, and you store your transport bikes together with trailer, you might want to consider the overall width. Few live in apartment buildings, with a bike room and roll-in access. In addition, the Roll-in access does not help for a trailer that does not fit through the door, and many do not. This may also be a concern if you will be using the trailer in stroller configuration to do some shopping, as you should be able to roll into the stores where you shop. Most trailers’ specifications say they are 32-33 inches wide, and there are many 29 or 30-inch door openings.

Some of the new models fold into a vertical position where they can still roll, which would solve the roll-in bike room problem, but not the shopping problem. Trailers are a great option for those who are tired of using bike racks, but also you should make sure that the trailer is a help to you but not additional stress, and this is why when going shopping for a trailer make sure that the trailer is the one you need.