The bicycle trailer Big Boy is extremely multifunctional, uncomplicated, unbreakable, and inexpensive. Its design is simple and convincing and has proven 100,000-fold.The plastic box is made of shock-resistant 100% recycling material and has a load volume of 90 litres. It is extremely robust and can be removed quickly. The trailer can be loaded with a distributed load up to 90 kg and is perfectly suited for all hobby craftsmen, indispensable for gardening and a useful helper in the stable and the pasture, fishing or for a larger purchase.The 16 spoked aluminium wheels guarantee a quiet and easy drive and a comfortable handling. It is pneumatically tyred. The high-tow arm can slightly be adjusted in height to optimally adapt it to the frame size of the bicycle.The tubular steel frame is black powder-coated. The scope of delivery contains the fitting hitch-type coupling and reflectors. A plastic top, deliverable against extra charge, lying slack, however, since the upper edge of the bowl can vary due to the kind of loading. In these cases the bowl and top have to be drilled through at the intended positions thus the top can be fastened by means of a splint or a padlock.The bicycle trailer Big Boy B is the modern brother of the Big Boy A. They are of identical purpose, setting, and quality (see Big Boy A).The Big Boy B is equipped with the Roland drawbar adapter system allowing the use of the trailer either with the high-tow arm adjustable in height or with a low-tow arm with a Weber adapter.Due to the possibility to adapt the height the tow-arm alternatives can be mounted to the bicycle in an optimal way. This increases the cycling safety and the comfort. With the low-tow arm only the Weber E coupling is possible, contained in the scope of delivery of course. The small wheels do not allow a supporting leg.The bicycle trailer Big Boy D is identical with the bicycle trailer Big Boy A. It has a so-called import drawbar though. Due to the possibility to adapt the height the tow-arm alternatives can be mounted to the bicycle in an optimal way.