Snow Defender

Snowy days are bad news for people who like to ride. Snow and ice on the road will make the bicycle wheels slip and cannot travel. Snow Defender this bicycle can be switched between snow bicycle and land bicycle and can adapt to a variety of weather. Its central structure is that the two auxiliary wheels can rotate and expand, increasing the contact area and friction. Let users travel smoothly in snowy days to ensure personal safety. The two auxiliary wheels are located on both sides of the wheel and can be used normally on land when they are retracted. The dual-purpose concept bicycle breaks the single use scenario of traditional bicycles and adds new functions to enrich the riding experience. On a snowy day, there is snow on the road and melts and freezes, making ordinary bicycle tires extremely easy to slip, unable to move forward, and even traffic hazards. However, the current snow bicycles are too heavy in ordinary life, inconvenient to ride and have low use value. The rider can turn the knob to turn the inner rotating groove. The buckle moves downward due to the path restriction of the limit groove and the rotation groove, pulling the bracket and the plate tire to contract to the center. The snow mode shrinks inward, the land mode expands outward, and the two modes switch to each other to facilitate riding.