Mountain frame size 15, mountain frame size

A 17-inch rack is enough, and a 35cm seatpost will meet your needs.

If you insist on trying a 19-inch shelf, you can do it, but if it's just for your personal use, you don't need to have a 35cm seatpost for the 19-inch shelf, just a 25cm long one. The same seatpost 25cm size length is cheaper.

In fact, the average height of 170-180 people is suitable for a 17-inch rack, and the riding comfort mainly depends on the length of your seat tube and the angle of saddle inclination.

I've also used the pro's shelf, and I'm about the same height as you. The Pro's 17-inch frame does have a shrinkage problem, but when I use it, it is equipped with a 35cm long seat tube, and the legs can be stretched out when the foot pedal movement reaches the bottom dead center, which is quite comfortable. If you are afraid that the 19 shelf is not suitable, you can ask the clerk to find you a 19 prototype car to try, if you sit on the seat and step directly on the ground, then you can use the 19.

Don't have 18's? Just use 18! Although it can be used for 17 ......But it's still on the small side after all! I'm two centimeters shorter than the landlord, and it's no problem to ride 18 inches, but of course 17 inches can be said to be just right for me......19 inches is definitely too big!

Height? Then buy 17's.

Is it to buy giant? The words of 19 are almost...

The frame is mainly made of chromium-molybdenum steel, aluminum alloy, titanium alloy, magnesium alloy, carbon fiber and carbon steel.

Main advantages: chromium-molybdenum steel, carbon steel, advantages: easy to weld, cheap, better absorbent of impact, beautiful appearance, and usually classic shape. Disadvantages: The biggest disadvantage of steel is that it is easy to be corroded, so rust prevention is a big problem, and the steel frame is relatively heavier.

Advantages and disadvantages of mountain bike frames of different materials:

1. Ordinary carbon steel frame. Advantages: sturdy, low cost. Disadvantages: large weight, easy to rust.

2. Aluminum alloy frame. Advantages: light, good hardness, reasonable. Disadvantages: low fatigue strength, poor elasticity.

3. Chromium-molybdenum steel frame. Advantages: good hardness, good elasticity and high durability. Disadvantages: high weight, ** high.

4. Titanium alloy frame. Advantages: light, good hardness, good elasticity, rust resistance. Cons: High.

5. Carbon fiber frame. Advantages: very light, elastic, rust resistant. Disadvantages: poor impact resistance, high impact.

Giant mountain bike frame models are distinguished by XS, S, M, L and other labels (as shown in the figure below). Among them, the XS size is equivalent to the size of the edahashi eggplant, which is suitable for people with a height of 160-165cm. The size S is equivalent to 17 inches, which is suitable for people with a height of 165-175cm.

The auspicious M is equivalent to 19 inches, which is suitable for people with a height of 175-185cm. The L size is equivalent to 21 inches, which is suitable for people with a height of 180-195cm.

1) Frame S (17 inches): suitable for 165-175 heights.

2) M frame (18 inches): suitable for 175-185 heights.

3) Frame L (19 inches): suitable for heights above 185.

The professional brand design of the frame, the different sizes of the same model, directly affect the handling performance and body adaptation of the amount of reach, stack height, head tube height, as well as the equivalent top tube length, head tube angle, towing distance, wheelbase, span height, many will be different. Go to the official website of Lightning or Trek to compare the geometry of several cars (these two brands are each type of car has a frame geometry, each type has more sizes, and the parameters are very detailed.) Many parameters of XS, S, M, M L, L, XL, and XXL are different, so that people of all heights and different arm and leg lengths can find the right size and consistent ride and handling.

Small and medium-sized brands or miscellaneous brands do not have such a high strength, experience and R&D investment, generally little change, and even simple enlargement and reduction with a size parameter (so most players in the circle say that Lightning Trek has the best sense of integration between people and cars, and Giant Merida is also quite good and easier to ride than other brands).

<> as a counterexample, some ZA brands only have one size (said to be able to ride from meter to meter) or two sizes, which will definitely be uncomfortable to ride, and will cause serious damage to the lumbar spine, cervical spine or knees.

Hello, there are differences in the angles of different sizes of mountain bike frames, and there is not only one angle.

The angle of the head tube and seat tube is not the same unless it is an extra large size or an extra small size, and the factory is generally too lazy to change it.

As the skeleton of the whole bicycle, the bicycle determines and affects the correctness and comfort of the riding posture to the greatest extent.

The frame size of the bicycle and the comparison table with the height are as follows:

At present, the main materials that can make bicycle frames are as follows: steel, aluminum alloy, titanium alloy, magnesium alloy, scandium alloy, carbon fiber, etc., and the main frames that appear in the general market are steel, aluminum alloy, titanium alloy, and carbon fiber. Scandium alloys and magnesium alloys are recent emerging materials and are relatively rare.

As the skeleton of the whole bicycle, the bicycle rolls wide, which determines and affects the correctness and comfort of the riding posture to the greatest extent.

The frame size of the bicycle and the comparison table with the height are as follows:

At present, the main materials that can make bicycle frames are as follows: steel, aluminum alloy, titanium alloy, magnesium alloy, scandium alloy, carbon fiber, etc., the main frames that appear in the general market are steel, aluminum alloy, Luyu titanium and bright gold, carbon fiber. Scandium alloys and magnesium alloys are recent emerging materials and are relatively rare.