Rasmus Henning’s Front End Published February 14, 2012 at 3240 × 4320 in Interesting Bike Tech From Panama 70.3 Rasmus Henning’s Front End Does Rasmus know something that we don’t? Does having a custom aero plug between the arms make you faster? This “plug” seems to fit within USAT guidelines for permissible dimensions… Clearly this is custom, cool, and aero?