I bet you're right. Pretty much exactly like my drawing.
That looks sketchy as fuck.
Amazon confirms:
Question: What keeps this from spinning as you apply the brakes? Only the raised piece in the axle slot? Does that work well enough? Answer: It's strong enough, it still holds and i use it on a motorized bike
@Tijmen started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I bet you're right. Pretty much exactly like my drawing.