Bicycle assembly What is this crossbar for?

This is the fork protector, which is useless when the wheels are installed. But it's best to keep it, if you need to disassemble the car and pack it, remove the wheel and then install this protective rod to prevent the fork from being deformed or even broken by impact.

Of course, if your wheels don't have axles or quick releases, they are probably used to install wheels. However, the wheels are generally assembled with axles, and this kind of screws are fixed to the wheels of the lowest-end bicycles, and slightly better cars are used for quick disassembly.

Seeing your **, your wheels are quick to disassemble, this must be a protective bar.

According to the ** provided, this crossbar is the bike's fork protector, which sits between the fork and the handlebars. Its main role is to provide extra support and protection to the fork while the bike is in motion to prevent the fork from bending or deforming.

In the structure of a bike, the fork is the part responsible for bearing the weight and impact of the front wheel. Since the front wheels are mobile, the forks are subjected to a large impact when encountering bumps or obstacles on the road. This crossbar is connected to the fork to disperse some of the impact force, reducing the burden on the fork while preventing the fork from bending or deforming if it is subjected to excessive impact.

In some bike designs, the fork protector also serves as a decoration and beautification. But in modern bikes, this design has been gradually phased out in favor of a more modern and safe one.

The upper wheel set is used to equip the function of quick release, and some hubs are dead.

1.Remove the package.

Most bikes are heavily packed, with twisted handlebars and wheels removed. The first job was to remove all packaging, rope, cable ties, and plastic. The easiest way to do this is to place the bike frame in a large space and remove all the packaging.

If you don't have a work desk, then lean your bike against the wall.

Keep in mind that your bike may not be the right size and may need to be returned. Therefore, it is wise to carefully remove the packaging and be clear about how the packaging is. As if it needs to go back, you can put it in the box.

2.Put the wheels in.

Once the packaging is removed, insert the wheels. To attach the quick-release skewers to the wheels, first apply a thin layer of lubricant to the entire length of the skewers (they may be pre-lubricated). Check the tires for the rotation of the wheels (arrow marks on the sidewalls of the tires rotate forward).

When you are sitting on the bike, the quick release lever should be on the left side of the bike.

When installing the front wheel, simply place the axle evenly into the bar, with the quick release lever located on the left side of the bike. Make sure the wheels are aligned in the middle. You may need to release the cam on the brake caliper so that it widens so that the wheel can be inserted. Less expensive bikes may not have cams.

It's not uncommon for the wheels to bend slightly if not handled properly in transit. Therefore, you should check if they are true. To do this, lift the bike off the ground and rotate the wheels.

You should inflate your tires too! A rail pump with a pressure gauge is the best tool. Most tires have a written word on the side that tells you the recommended pressure you should pump in.

3.Turn the handle.

Loosen the bolt on the stem and twist the handle to the desired position. When tightening the stem bolts, make sure to tighten them gradually and gradually. If you tighten too tightly, then the front bar may fail. If you use a torque wrench, you should have 5-6 Nm of torque on each bolt.

4.Insert the seat bar.

The seatpost may already be in the frame, but clips into its lowest position so that the bike can fit inside the car. In order to get your cushion to the correct height, you can take a look at the previous tweet on how to adjust the height of your own cushion, where you have already written in detail.

5.Set the brakes and gears.

For safety and enjoyment, we strongly recommend that you check that your brakes and gears are set correctly and that the brakes are sufficiently tight.

Last time the car was dismantled**Someone commented to see how to load the car. This is Miss Linda, a female rider from Wanwan, who taught us how to assemble the bike quickly. Miss Linda also has a scarf and bili Oh, but I haven't changed it for a long time

Bicycle parts can be roughly divided according to their functions: Body part: including frame, fork, handlebar, saddle and fork fittings, etc., is the main body of the bicycle.

Transmission part: including pedals, cranks, sprockets, chains, central shafts and flywheels, etc., pedals are stepped on by manpower, and the wheels are driven to rotate through the above transmission parts and drive forward.

Action part: i.e. front and rear wheels, including front and rear axle parts, spokes, rims (rims), tires, etc.

Safety devices: including brakes (brakes), lights, bells, reflectors, etc.

As needed, some accessories can also be added, such as stands, hangers, safety forks, fenders, air pumps, etc. In addition, sports cars, racing cars, and mountain bikes equipped with a transmission mechanism are equipped with a transmission controller and front and rear derailleurs. Hope to adopt thank you!