Will a Rusty Motorcycle Frame Break?
2 Answers
Under normal circumstances, a rusty motorcycle frame will not break. Specific reasons: Normally, a motorcycle frame should not break even when ridden until the entire vehicle is scrapped. This depends on the quality of the replaced new frame and the specific usage conditions. Generally, frame breakage is extremely rare and is mostly caused by poor quality or improper use. Maintenance methods: A non-corrosive rust removal method can be used to eliminate rust. First, dissolve ammonium acetate (a white crystalline powder available at chemical stores) in an equal amount of clean water. Once fully dissolved, heat the solution to around 70 degrees Celsius. Soak a soft cloth in the solution and scrub the rusted areas until the rust spots disappear. Then, use a dry cloth to wipe off any remaining solution, and the electroplated parts will shine like new. For rust in the fuel tank and exhaust pipe, you can use a small stick about 30 cm long that is slightly flexible. Attach a magnet to one end and insert it into the bottom of the fuel tank, moving it back and forth. Then, remove it and clean the rust off the magnet. Repeat this process several times to remove the rust.
Just helped Old Zhang with a similar issue yesterday. Rust on motorcycle frames does pose a fracture risk, depending on the location and severity of corrosion. On that old cross bike I saw last time, the rear swingarm joint had rusted through 2mm steel plate - you could poke through it with a finger. Pay special attention to welded seams and stress concentration areas. If left wet after rain, water pooling in grooves can quickly rust through. Some smaller manufacturers still use ordinary carbon steel, unlike quality bikes that use galvanized sheets or aluminum alloy chassis. If you see paint bubbling or peeling, test with a screwdriver - if it feels soft, it means complete rust penetration. Remember that food delivery bike whose frame rusted through and caused an accident two years ago? Best to sand and apply anti-rust paint annually.
