Pour white vinegar into a spray bottle. White vinegar is best at rust removal as it is much more acidic than other kinds. Even though it is possible to dab the vinegar onto the bicycle rust immediately, spray bottles are suitable to make sure a fair coating with the liquid. https://rustybikercommunity76418.activoblog.com/31023313/the-smart-trick-of-rusty-biker-cheats-that-nobody-is-discussing