gérard vroomen (born 20 july 1971, nijmegen) is a dutch-born mechanical engineer and the owner of open cycle. he was previously the co-founder of cervélo & the now-defunct cervélo testteam. he left the operational side of cervelo in may 2011. since february 2012, he has been the part-time business development advisor for cervelo's new owner, the pon bicycle group.