Its main wheel has 3 discs and the driven wheel has 7 discs, you can choose to hang on different discs of the main and driven wheels to get 21 different speeds to facilitate your ride Its triangular frame design and thickened and thickened tube type make it have a good weight-bearing capacity of 120kg/ 264.55lbs Its saddle can be adjusted between 80-95cm/ 31.5-37.4in, so you can adjust the height according to your comfort Its shock-absorbing frame and U-shaped shock-absorbing fork give it a stronger damping effect, which can effectively relieve the pressure on your hands and shoulders caused by intense riding You can choose to lock the fork or not depending on the road conditions. The locked state is suitable for smooth roads or uphill and downhill. The non-locked state is suitable for outdoor bumpy roads such as off-road Its main wheel has 3 discs and the driven wheel has 7 discs, you can choose to hang on different discs of the main and driven wheels to get 21 different speeds to facilitate your ride|Its triangular frame design and thickened and thickened tube type make it have a good weight-bearing capacity of 120kg/ 264.55lbs|Its saddle can be adjusted between 80-95cm/ 31.5-37.4in, so you can adjust the height according to your comfort|Its shock-absorbing frame and U-shaped shock-absorbing fork give it a stronger damping effect, which can effectively relieve the pressure on your hands and shoulders caused by intense riding|You can choose to lock the fork or not depending on the road conditions. The locked state is suitable for smooth roads or uphill and downhill. The non-locked state is suitable for outdoor bumpy roads such as off-road