| 摘要 |
A double wing bicycle fender is mounted on a frame pipe of a bicycle. When in use, a fender main body of the roll-up bicycle fender can be pulled out into an operative position at both sides of the shaft to increase the effective width of the fender for blocking the splashing of mud, water and road debris, and can also be rolled up on the shaft and collected in a holding body, thus it not only saves space but is aesthetically pleasing.
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