Bicycle accessories should be how to choose the wheel

The wheels include the rims, steel wires, front and rear axles, tires, inner tubes.
Circle: mountain bike should choose double circle. Because the double circle is stronger than the single-layer circle, more able to withstand the terrible terrain performance test. Circle is divided into: knife ring and model circle.
The advantages of the knife ring is the impact of anti-longitudinal strong, and then the intensity of large deformation will not occur, and the lateral deformation is well adjusted; knife ring can reduce air resistance, suitable for amateur drivers and training. The disadvantage is heavy, not suitable for climbing.
The shape of the ring against the impact of the horizontal stronger.
Steel wire (spoke): there are two, one is common, cross-section is round; another cross-section is flat (wind resistance), can reduce the front of the wind resistance.
Axle: also known as hub Friends with disc brakes should choose the disc brake shaft, because the disc brake is fixed on the disc brake shaft; with V brake friends, you can use the ordinary axis, if you want to upgrade to the disc brake, you can first install the disc brake shaft The
The axle is divided into [the peat] axis and the [bead] axis. Recommended to buy Peilin axis, the ball is broken, you can replace.
Tire: It is important because it directly affects the rider's manipulation of the car on a particular road. Different treads adapt to different pavements.
Tread more flat, the smaller the resistance, the faster the faster the friction on the ground. Bald tires, suitable for the formation of cement in the city road.
Tread more convex, the greater the resistance, the slower the more intense the friction in the mountains.
Inner tube: belong to consumables.