All eyes will no doubt be on Lenzerheide this weekend as the enthralling World Cup season speeds towards its finale, but we shouldn't forget another very prestigious event in the mountain bike calendar on Sunday - the Megavalanche.

Take 1,500 riders, the Alpe D'Huez glacier and some dodgy European techno and you've got a recipe for absolute carnage. The riders charge down the mountain like wildebeest fleeing a pack of lions and given the conditions there are very few who will manage to stay on two wheels the entire time - painful for those involved, but great armchair viewing for us back at home.

Here are the best crashes in the history of the Megavalanche:

1. Rene Wildhaber

Rene "Mr Megavalanche" Wildhaber may be a six time winner of the event but he misjudged it in 2012 as he attempted to fly down the inside like Senna at his peak. unfortunately the move didn't quite come off and set off a chain reaction that, frankly, left everyone lucky to be alive.

Most amazing of all, Wildhaber went on to finish 18th despite this huge smash.

2. Dan Smith

Megavalanche is one of the sternest tests of a bike's reliability and unfortunately Dan Smith's was not quite up to it in 2013. A small crash ripped out his rear brake hose and left him hurtling down the icy field. Thankfully he soon discovered you don't really need brakes when another rider can slow you down from 50 mph pretty easily.

There's another angle of Dan's bucking-bronco ride here:

3. Adam Price

Unfortunately if you don't get the hole shot out of the start line this is what your Megavalanche is going to look like - stuck in an expanding snowball of sliding riders slithering your way down the glacier. Ride.io's Adam Price took this footage back in 2013 and while it's not the biggest crash ever, it's still pretty funny.

4. Jamie Nicoll

Jamie Nicoll is a renowned hard man and he did his reputation no harm with these two crashes in the first three minutes of his race in 2015. The first one is a bit of comedy but the second (at 1:36) is truly sickening. Nails Nicolls shook it off though and finished in seventh overall, mental!

5. Have a go heroes

It's not just the glaciers that challenges riders at the Megavalanche, the rest of the course is pretty brutal too. you may think these guys aren't the best bike handlers, but after half an hour of full-on downhill you'd find it pretty hard to hang on too.