Two Harrow men are all set to cycle 1,700 miles in just 12 days across Western Ireland to raise money for the London Air Ambulance.

The pair are raising money for the Your London, Your Helicopter campaign - and hope to donate towards the cost of a second emergency medical helicopter.

Gerry Boots and friend Brendan Barrett start their 'Wild Atlantic Way Charity Cycle Challenge' on Monday (August 10) in Kinsale, Ireland, and aim to finish on August 21 in Derry.

The 12-day challenge is believed to be the quickest time anyone has ever attempted to cycle this route.

Brendan Barrett said: “For two complete amateurs this is a serious challenge.

“To put it in perspective, the pros on the Tour De France average 100-miles per day, with rest days, and we will be cycling as much as 175 miles in a single day – not to mention battling west coast winds and other elements!”

Father-of-four and grandfather-of-one Gerry is the owner and director of Ultimate Workwear, a Wembley-based company supplying workwear to the constuction industry.

Brendan is the owner of the construction company JB Structures, based in Hertfordshire.

London's Air Ambulance is a charity that delivers an advanced trauma team to the critically ill.

After a serious road accident two years ago, an air ambulance saved Brendan's life.

The pair also had a mutual friend who was recently helped by the air ambulance too, which is why they have decided to raise money for the charity.

Mark Davies, director of development at London’s Air Ambulance, said: “We are very grateful to Brendan and Gerry for their support of the charity and wish them the best of luck on this remarkable challenge.

“With the continued help of our tireless fundraisers and through the generous donations from the public, we will be able to deliver our life-saving service to more people in London.”

Brendan and Gerry are welcoming anyone who either wants to join them along the route or cheer them on as they pass.

You can follow their journey and keep updated on their progress on Twitter and Facebook, or sponsor their challenge on their Just Giving page.