Gallery: Vinokourov, Hincapie and McEwen lead retirements in 2012

The end of the year always brings a number of retirements, and the list this year features both major stars and treasured domestiques. In the first of a two-part series, Cyclingnews takes a look at some of those who are hanging their bikes on a nail in 2012, from Olympics winner Alexandre Vinokourov to Rabobank veteran Grischa Niermann.