Here are some mock ups of some straight tube forks. I used a 16 x 1.75, 16 x 1 3/8, 20 x 1.75 wheels. I also made them 2 different heights. Check the tube height over the top plate. I made one full height and the other I tried to level out the bike. I used 2 foot fork tubes. Huffy Rail and Murray F Series frames.
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