Cyrusher via YouTube
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Fenders and Mudguard Purchase:
https://www.cyrusher.com/en/i/bike-mudguard-and-fender-for-fat-tire-mountain-ebike?sid=2832
Special Notes: If you have rack on your ebike already, you may also need drill a small hole for rear fender or mudguard and use a plastic ribbon to tie it on the rear rack to avoid any play around or movement for the fenders during the riding.