Convert any child's bicycle into a trailer, then detach at your destination, by Trail-Gator - $139.99

• A bicycle "tow bar" instantly converts an ordinary child's bike into a safe, towable trailer bike
• to ride attached: unclip tow bar from the stored position the adult bike, extend it, and connect it to the receiver mounted on the child's bike lifts off the ground
• a stabilizing bar prevents the handlebars from turning
• adult is always in control - child can coast or pedal while they are being towed
• to ride unattached: unclip from child's bike, telescope, and attach to adult bike's frame
• Fits 12" to 20" wheel children's bikes
• Trail-Gator weight: 5 LB, child maximum weight: 70 LB
• Includes: quick-release mounts for adult and child bikes; bicycles not included
• Read about the Trail-Gator bicycle child trailer tow bar and the Trail-Gator Owner's Manual (PDF)
• Also available: Trail-Gator flip-up training wheels - $29.99 (shown below, bicycle not included)