A standard crank extractor will do 95% of all square-taper cranks - for stronglight/TA there's a different extractor. If yours is a BMX-specific extractor it might have a different thread - I'm not familiar with BMX cranks.
Are you sure your forks aren't bent backwards?
@lae started
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A standard crank extractor will do 95% of all square-taper cranks - for stronglight/TA there's a different extractor. If yours is a BMX-specific extractor it might have a different thread - I'm not familiar with BMX cranks.
Are you sure your forks aren't bent backwards?