It's a nice gimmick, like many, but it won't catch on, and as has been touched on, may engender or perpetuate bad riding habits, e.g. people looking behind too rarely.
@Oliver Schick started
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It's a nice gimmick, like many, but it won't catch on, and as has been touched on, may engender or perpetuate bad riding habits, e.g. people looking behind too rarely.