I m going to buy a shifter bike and give me some advice

If it's a shifter bike.

The most important thing is the transmission.

Don't buy a domestic transmission, it's all like that.

It didn't take a few days to disperse.

It is recommended to buy a transmission of about three or four hundred from Shimano-Sis.

With a good transmission, the bottom bracket and crankset also need to be graded.

Of course, buy these sets and buy what is special for the competition.

Although it is very lightweight, it is expensive and has very poor durability.

I also highly recommend Mira's car, *** can stand up to play. My current broken Amini is my 6th car, and the quality is super poor... Highly recommend New Mano (???) The transmission is used with absolutely no regrets.

Do you want to buy a complete vehicle or assemble a car, and how much is the price.

I'm talking about pure mountain bikes, but the assembly is not very good, and the manual craftsmanship is still not as good as the factory one.

High-end recommendation of Meili (Li) Da's Mingqu champion. That's what I am. 7999 low-end with Merida's warriors. It seems like more than 1,000 yuan.

Jaante is good, but it's a little more expensive.

Buy a good fold for easy carrying.

Don't buy Jaante's, I love to lose them, I lost 4 of them.

Buy only those who are cheap and have good quantities.

Don't buy anything else. The green source is very good.

Go to the store and see more, I have a mountain bike, you either 500 yuan permanently.

There is a direct relationship between the price and the feeling of use!!

The internal-shift bike is not bad, the speed can be adjusted, and the ride is light.

For the characteristics of internal transmission, here we will explain the internal three-speed as an example.

1. There are three gears to choose from: light, flat and fast (27% lighter standard 36%), especially suitable for older people, women, students and some people with poor physical condition. Because the use of the inner three-speed is especially uphill, on the bridge, and against the wind, it will feel very relaxed and comfortable when driving, and at the same time can reduce the consumption of physical energy.

2. Generally, the external transmission device is exposed to the outside world and is easy to rust and be damaged. However, the inner three-speed can be avoided, and the entire shifting process is completed in one go inside the hub, so in general, maintenance-free is another significant advantage of the inner three-speed.

3. The inner three-speed is used as the internal transmission system, and the main transmission device is hidden inside the hub and protected by multiple layers of special sealing materials. Therefore, rainwater, dust, and grease cannot enter, so regular maintenance is not required, and the advantage of maintenance-free is realized.

4. The internal transmission mechanism of the inner three-speed hub is quite complicated, so it is recommended that you do not disassemble it, because it is difficult to repair it without technicians, and at the same time, consumers are also requested not to add some anti-rust oil at will, because it uses special oil carefully extracted from minerals, so in case of problems, please go to a professional bicycle shop for maintenance.

How to use the transmission.

Use the low gear first, take the 24-speed transmission as an example, if the front derailleur uses 2nd gear, the rear derailleur uses 4th gear, here abbreviated as 2-4 gear. Under normal circumstances, the transmission does not use the 7th and 8th gears of the rear derailleur, and the gears are too small, which affects the life of the chain.

And the transmission is best not to hang 1-8 gears, 1-8 gear crankset is the smallest gear, flywheel is the smallest gear, the chain is not straight, it is oblique, this is not good for the chain, it will accelerate and affect the life of the chain, and it is not good for the transmission.

In the same way, 3-1 gear is not good, because the chain is also oblique. Two do not ride for a long time, if you park the car, you can change to 1-8 gears, so that the front and rear are the smallest gears, which can relax the rear dial spring and prolong the life of the rear dial, but 1-8 is not a gear for riding, before riding, that is, before people get on the car, it is best to change to 2-4 gears.

If you use a 24-speed transmission, it is recommended to gear 1-1, 1-2, 1-3, 1-4, 2-2, 2-3, 2-5, 2-6, 3-6, 3-7, 3-8, 3-7, 3-8. Under normal conditions, gears 2-4, 2-5 and 2-6 can cope with most road conditions, and the speed range is between 15 km/h and 22 km/h without force.

The above content reference:

How to say, the internal shift bicycle is generally used in city bikes, its tires are narrower than mountain bikes, so it is more labor-saving to ride, and the disadvantage is that it is not suitable for complex road conditions.

To say that the effect of shifting is actually the same as that of external shifting, although there are differences in the principle of their shifting structure, the advantage is that internal shifting does not need to be adjusted as often as external shifting, and the shift is flexible. The internal transmission generally has 3 6 9 gears, which is determined by its structure, and the external transmission gear. Differs, there is no flywheel, rear derailleur.

The internal speed change is not easy to break, and there is basically no need to adjust.

Generally, there are three inner speeds and eight inner speeds, which determines its use, mainly in the city, commuting and the like, which can deal with small slopes.

The speed range is also small (around 0 to 35), and the maximum speed of the external transmission car can even reach 50 km h

To buy. Bicycle shifting system.

The function is to change the speed of the car by changing the cooperation of the chain and the gear discs of different front and rear sizes. The size of the front chainring and the size of the rear chainring determine how hard the bike rotates the pedals. The larger the front chainring, the smaller the rear chainring, and the more laborious it is when pedaling.

The smaller the front chainring and the larger the rear chainring, the more relaxed it is when pedaling.

Depending on the rider's ability, you can adjust the speed of the bike by adjusting the size of the front and rear chainrings, or cope with different road sections and road conditions. Generally, the so-called several stages of bicycle speed change refers to the number of front ** teeth x the number of rear flywheel teeth', and the mountain bike is usually the first 3**.