Video: Mike Cotty & The Col Collective take you up Mont Ventoux

In their latest video, Mike Cotty and the Col Collective tackle one of the Tour de France's most feared climbs, Mont Ventoux.

Ventoux's raw numbers are bad enough, but what makes the windy mountain, in Cotty's words a "highly unpredictable monster" is the changeable weather.

From the start in Bédoin, the mountain's numbers look like this:

• Length: 21.8km
• Summit: 1,912m
• Elevation gain: 1,629m
• Average gradient: 7.4%
• Max gradient: 12%

Before tackling Ventoux Cotty says he became obsessed with the weather report.

He writes: "I’d been checking the forecast continually, secretly praying to the weather gods to be kind to us, knowing that we only had one day to try and bring this mythical mountain to life.

"On Monday, Tuesday and Wednesday torrential rain, near hurricane winds, thunder and lighting hammered the slopes of Ventoux.

"We arrived late on Wednesday night, I couldn’t sleep, nervous at what we may face the next day.

"I guess all my praying paid off as we were gifted with the best day I’ve ever seen on the mountain. Barely a breath of wind, the fresh smell of pine in the forest and high temperatures certainly helped get the legs spinning again but such is the history of Ventoux this is a climb that should never be taken lightly and needs full respect no matter what.

"A hard section through the forest from Saint-Estève to Chalet Reynard, barely dropping below 9% gradient, followed by a final six kilometres exposed to the elements and all whilst the summit overlooks one and all from high above.

"One word: unbelievable. Four words: you must ride it!"