stranger coastersarus and infinity flow are probly the same. are semi-female (hermaphrodite?) - have shorten 14mm axle sticking out like those 10mm mtb's skewer types hubs; can't use enclosed dropouts with them.
Those aren't too female then. lol Why do they do this when you can have a regular axle? Isn't that all it is only the 14mm axle is hollowed out for 3/8" bolts?lol Regular female axles are just as strong...
This is because the design isn't looking to create a stronger axle in this particular instance.
The design itself is looking to reduce issues problems in regards to the coasters performance.
As without this extra support of the main part of the coaster body being supported in the dropouts, it can lead to variables that effect the performance of the coaster.
And a coaster that doesn't work properly is more problematic than anything else such as Axle strength ... which doesnt usually effect flat riders in the same way it does street riders.