Introduction: Mud Flap for Bike Fender
Old mountainbike tube
1. Cut a 40 cm piece of the tube
2. Cut it open
3. Fold it to a 20cm x 10 cm piece
4. Staple it in three rows 20 cm x 3 rows.
5. Cut 2 holes on each side so you can zip-tie it around the two metal-strings on your fender