Can't imagine pipe cutters would be good on a threaded steerer, I would expect them to follow the groove, we've got a few around but I just use a hacksaw... cut straight and you're fine.
@tobyprice started
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Can't imagine pipe cutters would be good on a threaded steerer, I would expect them to follow the groove, we've got a few around but I just use a hacksaw... cut straight and you're fine.