It took 1/1000th of a second for your helmets to split. After that, where do you think the force went? That's not how helmets work, a split means the integrity's compromised. Your helmets failed.
@spindrift 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 took 1/1000th of a second for your helmets to split. After that, where do you think the force went? That's not how helmets work, a split means the integrity's compromised. Your helmets failed.