The difference lies in the performance and manufacturing process of bicycle parts. The frame is welded by robots and manual labor, and the batch (assembly line) is produced quantitatively (all by hand), so that the price and quality are distinguished and the materials of the whole vehicle are also used. At present, in addition to classic models or technology-oriented cars, most of them are light, bulky and expensive. As for riding, the feeling is similar (same model/don't compare mountain bikes with roads).
Transmission: the difference between high-end and low-end
The difference lies not in the level of flywheel, but in the sensitivity, durability, stability and accuracy of rear derailleur and front derailleur and manual control.
7 speed means the flywheel has seven toothed discs, and 8 speed means eight and nine. ...
The front chain disc (toothed disc) is not called flywheel.
When riding on ordinary roads, the front toothed disc (operated by the left gear lever) is fixed in the middle (or the maximum toothed disc is 1). It is easier to understand by using only the rear gear (operated by the right gear lever). Use the smallest front tooth plate when going uphill.
How to choose the transmission ratio of the rear toothed disc? This is determined by the number of revolutions of the pedal [number of revolutions of the front tooth plate (central axis) 1 min]. So how many revolutions is appropriate? It varies according to foot strength, skill and cardiopulmonary function. Generally, 70 ~ 80 rpm ※ 2 is more suitable.
● In order to accelerate, start from the lower gear (the larger gear at the back) and shift to a higher gear (the smaller gear at the back) with the increase of speed.
● When going uphill, the speed will be reduced, the transmission ratio will be reduced, and a certain pedaling force will be maintained.
● When the wind is downwind, it will speed up and increase the transmission ratio to maintain a certain pedaling intensity.
What is the multiplication of the number of front flywheel and rear flywheel?
This involves transmission ratio, please know more about it.