The leg issue is still being sorted. See low&slow and his latest success compared with Alan Smith's streamliner. Both are well developed machines but I suspect a front or diagonal hinged door will eventually prove most suitable in touring. A commuter scooter may only need a smaller opening. Ease of putting a foot down at a stop and protecting the legs in a crash or slide are key. The main bulkhead needs to be strong enough to resist crushing in a roll and anchor the rear crush zone. The front crush cell would be integrated with the frame and front wheel. While a long way from popular, an inertial reel lap belt needs to complement the front air bag.
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