Saying that, I've had a pair for ages and don't think I'd be brave enough to put them on anything other than a balance bike.
Some Profile Racing hubs have aluminium bolts.
The frame I had by Sillgey had very slick integrated tugs that mitigated any stress that the alu nuts might encounter.
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Not seen dropouts like that before, interesting.
@withered_preacher started
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Saying that, I've had a pair for ages and don't think I'd be brave enough to put them on anything other than a balance bike.
Some Profile Racing hubs have aluminium bolts.