A new documentary is due for release which follows the lives of women riding bicycles in Afghanistan, showing how they are challenging gender perceptions in the country.

The film, which is still being recorded, first began shooting in 2013. It profiles three Afghanistan-based cycling teams based in the mountainous province of Bamiyan and in Kabul. This includes the Afghani national team which is striving to compete more greatly on the international stage.

The film's trailer was released on August 30 and it shows several women and girls talking about their cycling.

One woman, who speaks with her face hidden, says Afghanistan can be a dangerous place for women.

"The condition for girls in Afghanistan is full of fear. We know people are watching us from behind our backs and it is horrifying," she says.

The full-length documentary titled Afghan Cycles is expected to come out in 2016.

Sarah Menzies, founder and director of production company LET MEDIA, said the women ride for the love of riding and in doing so challenge gender barriers.

One myth female cyclists have to combat is the idea that riding bicycles make women less fertile, she added.

LET MEDIA is working to raise $50,000 to fund a trip to Afghanistan for one last shoot in the Autumn. The hope is to enter the film for international film festivals once it is eventually completed, Menzies said.