While most tag-a-longs feature a 20 inch wheel, the Trek Mountain Train 241 is one of the few single speed tag-a-longs to offer a 24 inch wheel. This makes it ideal for teaching older children the rules of the road or for use with those kids who exhibit balance problems. The Mountain Train 241 also features an adjustable stem that makes it easy to adjust for riders of different sizes. The tag-a-long hitches effortlessly to an adult bike and when not in use, the boom arm folds for easy storage and transportation. The Trek Mountain Train 241 comes included with a safety flag and a water bottle that attaches to the tag-a-long's frame so junior can enjoy his own refreshment as he rides with mom or dad.

Pros: Large, 24 inch alloy wheel, adjustable stem, folding boom arm for easy storage
Cons: High cost