It's like that because you're only supposed to finger tighten it, it needs very little torque. It just preloads the BB bearings (a lot like a headset top cap) before you then tighten the crank arm onto the axle.
@Regal 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.
It's like that because you're only supposed to finger tighten it, it needs very little torque. It just preloads the BB bearings (a lot like a headset top cap) before you then tighten the crank arm onto the axle.