1. The factor of vehicle type: The traditional Kun car (also known as a "grocery shopping cart") like the one in your photo is common when encountering uneven roads and severe bumps, causing various physical discomforts (including Wrist pain, knee pain, even crotch prostate damage, etc.). If you often ride on bad roads, it is recommended to change the model. Switching to a car with a shock-absorbing front fork will slow down some of the impact. . . 2. Accessory factors: If you do not change the car model, you can purchase a composite-filled elastic ergonomic seat cushion or a seat post with shock-absorbing function (that is, the vertical bar under the seat cushion) to replace the original seat post. . A shock absorber seatpost can cushion some of the shock. . . 3. Factors of car control skills: When encountering bumpy roads, you should "sit empty" (floating seat), use your thighs to exert force, use the soles of your feet to step on the pedals, raise your buttocks slightly and do not sit hard to reduce the vibration and avoid The impact injured the waist and spine.
A "hybrid sports car" (also called an "urban sports car") with a shock absorber front fork, in addition to a shock absorber front fork, and a transmission kit (for high speeds on flat roads, downhill; against wind, climbing) In addition to adjusting the speed on different occasions such as slopes, load-bearing, and physical decline, etc., to achieve fast or light effects), the geometric design of the frame also has a special vibration filtering design (such as special-shaped tubes, frog-leg type or flattened one-piece chainstays, etc.).
Seat cushion with a certain shock-absorbing function: This one is from Italian RS, Lookin, with patented second-generation silicone filling. It is not only comfortable and does not irritate the crotch, but also seems to have a spring when going off-road (I use This can be seen when riding a mountain bike off-road; three hundred yuan):
Suspension seat post:
Bicycles specially designed for riding on bumpy and off-road roads: soft-tail mountain bikes, With advanced shock absorber front fork, rear suspension bracket and rear shock absorber