20 INCH BIKES FOR BOYS

Yakima SideWinder Tandem Fork Mount Rooftop Bicycle Carrier

Yakima Sidewinder Tandem fork mount bike carrier features a easy-to-use swing-out skewer arm for easy loading.
Swing-out skewer arm enables you to hook the fork on first, then swing the bike into place
Holds a tandem more securely than wheel-tray designs
Lockable long-throw skewer handles any 9mm/100mm tandem fork
Padded boom cradle and quick-release ratcheting straps protect bottom-mounted cables
Includes handlebar strap for added stability

Wondering how to take your tandem bike to the beach house? Look no further than the Yakima SideWinder tandem bicycle carrier, which holds a tandem far more securely than racks with wheel-tray designs. The SideWinder boasts a swing-out skewer arm for easy loading. The SKS-lockable skewer arm lets you hook the fork on first, then swing the bike easily into place on the roof. As a result, you can rifle around the cooler for some delicious beverages while your riding partner does all the work. The SideWinder's padded boom cradle and quick-release ratcheting straps, meanwhile, protect bottom-mounted cables. Perhaps most importantly, the SideWinder won't interfere with most hatchbacks or flip-up rear doors, even while dangling a tandem bike over the back edge. Other features include support for any 9 mm/100 mm tandem fork (locks are sold separately) and a handlebar strap for added stability. Compatible with round and square crossbars, the SideWinder carries a limited lifetime warranty.

Tandem Bicycling is really fun but very difficult. We found this out the hard way...

After a quick research, then I know this is call a Tandem bicycle. :D