With the popularization of cycling, the types and forms of mountain bike parts are becoming increasingly diverse.
Many riders, while pursuing high performance and appearance of parts, overlook or confuse the basic performance and usage conditions of parts, and many seemingly reasonable combinations are actually wrong. Here are some common misconceptions about the selection and use of mountain bike parts.
1. Four Peilin flower drums are more moist than two Peilin flower drums
Explanation: The Four Peilin Flower Drum refers to four independent Peilin bearings inside the rear flower drum, with two on each side. There are also 2 Peilin Flower Drums and 5 Peilin Flower Drums commonly seen - there are 5 independent Peilin bearings inside the rear flower drum, 3 on one side of the tower base (flywheel side), and 2 on the other side. Regardless of the number of Peilin Huagu, it refers to the number of Peilin inside the rear Huagu, while the front Huagu only has two. For example, the Nine Desires 4 Peilin Flower Drum, the Rear Flower Drum is 4 Peilin, and the Front Flower Drum is 2 Peilin; Quad5 Peilin Flower Drum, Rear Flower Drum is 5 Peilin, Front Flower Drum is 2 Peilin.
Some riders believe that the Four Peilin Flower Drum is more moist than the Two Peilin Flower Drum, but this is a misconception. The smoothness of Peilin Flower Drum depends on the smoothness of Peilin and the number of Peilin. The more Peilin there are, the greater the rolling resistance of the flower drum.
The characteristic of Duopeilin Flower Drum (3 or more flower drums) is to obtain greater flower drum strength, to withstand greater impact force, reduce the probability of damage to the flower drum, and reduce the wear and tear of the flower drum.
2. Size of outer tire
The common tire sizes for mountain bikes currently include 26x1.3, 1.5, 1.75, 1.9, 1.95, 2.0, 2.1, 2.125, 2.3, etc.
I often hear my fellow riders say, 'Why is my 2.1 tire as wide as your 1.95 tire?'?
The size data marked on the tire size represents (taking 26x2.0 as an example): the outer diameter of the rim is 26 inches, and the tire height is 2.0 inches. Here, 2.0 refers to the height of the tire (the height from the outer edge of the rim to the ground under normal tire pressure) rather than the width. The higher the tire, the larger the outer circumference of the tire, so we need to adjust the base of the odometer accordingly based on the size of the tire. The height of the outer tire is an international standard, but the width is not, so the width of tires of the same size may not be the same. It is precisely because of this that many riders have found that the width of tires from different brands, 2.1 and 1.95, seems to have little difference.
The advantage of large-sized tires: the outer diameter of the wheel increases
(1) The inertia of tire rotation increases, which is more conducive to maintaining vehicle speed. Travel cars and road cars use large diameter wheels like 700c because of this.
(2) The larger the diameter of the wheel, the easier it is to pass through rough roads, improving the vehicle's passability and off-road performance.
(3) Raise the body of the vehicle to reduce the likelihood of the teeth or feet coming into contact with obstacles during off-road driving.
(4) As the height of the tire increases, the width of the tire will disproportionately increase, improving the stability of the vehicle during off-road driving.
Disadvantages of large-sized tires: increased outer diameter of the wheels
The potential energy of tire rotation increases, which is not conducive to acceleration. Inertia is a thing that helps maintain the original motion state of an object, but hinders changes in its motion state
Note: The surface of most tires is curved, and the contact area of tires of different sizes is similar under normal tire pressure.
3. Tire pressure - please maintain normal tire pressure
Different brands and models of tires have specific normal pressure ranges. The normal pressure range of a tire depends on the pressure range of the outer tire. The normal pressure range of a tire is indicated on the outer tire in units of "bar" and "psi".
The advantages of having a lower tire pressure within the normal tire pressure range are:
(1) The tire is relatively soft, absorbing the vibration of the road surface to the vehicle and the rider, providing better comfort.
(2) Increase the contact area between the outer tire and the ground to improve vehicle stability.
(3) Increase grip on dry and hard (icy) road surfaces.
(4) Reduce pressure to prevent tire sinking into very soft surfaces such as sand and mud.
