Luggage carrier
A bike rack is a device for transporting loads on bicycles. It is mounted either above the rear wheel of the bicycle, then it is called the rear rack, or on the front fork, then he called Lowrider. There also exist a front wheel luggage rack above the front wheel.
Properties
Bike rack usually consist of wire or pipe. The materials used aluminum and steel. Heavy-duty luggage carrier are generally thin-walled steel tubes, which ensure high rigidity and low weight.
Racks are designed for a maximum weight that is sometimes stamped on the carrier. Thus, typical maximum weights on the rear wheel 25 kg at Lowrider per page 12 kg. So-called expedition carrier on the rear wheel can be charged even sometimes up to 40 kg. However, the dropouts of the frame must be approved for the higher load. There are models with each side one, two or three struts and the dropout. Without folding down extending struts carry loads well from a by bending backwards projecting strut or a cross strap holds a saddlebag on distance from the rotating wheel for stablety against lateral vibration - inspired by saddle, high drive speed and cadence - provides a rigid wide or dimensionally stable linkage in the area of the seat stays and especially behind a pair of struts, which as narrow as possible merges above.
Some porters have admissions for child seats or special bags or luggage systems.
Mounting on the rear
Many, many times simpler rear carriers are prepared for mounting on the so-called Pletscher, located in many bikes at the top of the rear fork and also serves to mount the fender.
On travel and trekking bikes newer design and hardtail mountain bikes you'll find the Pletscher rare, there mounting the rear luggage carrier is realized via two mounted on both sides of the fork eyelets that are bolted on perforated plates or similar compound parts to the carrier.
On bikes with spring-loaded rear retro-fitting a luggage carrier is usually only possible by clamp to the seat post. Such Porters are small (usually 8-12 kg) load capacity. If a rear suspension needed along with a More Robust Porter, which needs to be considered when buying the bike, plus there are special designs of the manufacturer.
Installation of the front
Front Rack older design, which carry the load over the front wheel, are similar to the Pletscher variants mounted to the mounting points of the mudguard. Today more common are so-called low-rider rack.
Mounting on the seat post
On bikes with rear suspension itself offers the possibility to mount special luggage carrier on the seat post.
Proper loading
Of packing bags are used, they should be loaded such that large weights are placed as far as possible below. This is particularly important when loading the luggage rack on the front wheel. Light loads, such as sleeping pads can be safely mounted on top of the front carrier.