A product / adjustment to a motocycle (or perhaps even bicycle): The saddle is placed on top of 2 curved grooves (one on each side) that are part of the cycle's body, and go from horizontal up to a 45 degree angle. The saddle rests on the bottom/horizontal part of the groove, and is attached by fasteners that are designed to break in the event of a quick decelleration.
In the event of a forward crash, the fasteners break, your saddle goes forward and then upwards a bit. Maybe just enough to clear the crash...
.... and maybe with enough hangtime to do a tuck & roll....
It's a very cheap automatic ejection seat, which uses your rapic decelleration to both trigger it and power it.-- sophocles, Jun 10 2004 There needs to be more to this rig: 1) A harness to keep the seat and rider together 2) A parachute that deploys based on altitiude 3) A radio locator 4) Emergency rations And in the event of an emergency, the seat should be usable as a floatation device.-- phoenix, Jun 10 2004 Sure, but most of those add-ons (rations & radio) could be on the bike anyway. I don't think a parachute would be a needed complexity though. We're talking about adding some feature to help in some scenarios, but not guaranteeing life-safety.
Also, I think some folks may want to engage this feature recreationally....-- sophocles, Dec 20 2004 You might want to add suction cups for retrieving the rider's testicles from their abdominal cavity.-- Belfry, Dec 20 2004 random, halfbakery