I saw this 2013 video of mountain bikers crashing (mostly on downhill runs) on a couple of Facebook pages in recent weeks:
Most of the crashes in the video seem to happen in such a way that there’s little the riders could do to mitigate the impact because of the speed or type of motion that their bodies had.
But there are at least two types of falls in which riders do seem to have some ability to, all things being equal, make better or worse.
1. Over the bars (OTB)
Here’s a sequence of 4 screenshots from the above video (at the 01:26 mark) showing how one rider extends his hands and arms straight out in front of him as he goes OTB:
2. Sliding out sideways
Here’s a one-minute video (GoPro chest harness view) of me crashing at MORC’s Lebanon Hills Mountain Bike Park in Eagan, MN last year. I got caught in a brief rain shower that turned the trail surprisingly slick and I slid out three times in a short span, mainly due to improper form on the flat corners:
Three screenshots:
In both types of falls, my instincts are to use my hands and arms to protect my head because it’s where my brain is, not withstanding my wife’s contention that it sometimes migrates to more southern regions of my body.
The expert mountain bike coaches suggest that this instinctual maneuver to extend our arms in a fall is generally a bad idea (there are exceptions) because of the havoc it tends to wreak on our hands, wrists, rotator cuffs, collarbones, etc.
I first blogged about this back in 2012 with a post titled: How not to crash on your shoulder. I’ve never followed through on the tumbling drills advice in the video by James Wilson, in part because I had a handy excuse: I didn’t have easy access to a place with a tumbling mat. I do now, at my local Northfield Area YMCA.
So the big question for both types of falls: What can you practice so that you’re more likely to override your instincts to stick out your hands and arms?
I’ll soon blog about the drills for the OTB scenario but for the remainder of this post, I’m going to focus on the technique of hanging onto the handlebars for crashes where you slide out sideways at speed. I first learned about this in Ned Overend’s 1999 book, Mountain Bike Like a Champion:
In Chapter 18, Crashing: the right instincts reduce the damage, he writes:
Depending on what you’re going to land on, one way to reduce the chance of serious damage is to hang on to the handlebar. Keep your hand on the grip and turn the bar so the end hits first. Ease yourself onto the ground by landing with your hip. arm, and shoulder in sort of a rolling motion. This technique works on soft surfaces, but you may need to use an outstretched arm if the ground is full of roots or rocks—things too hard for a hip to take. If you reach out, do your best to absorb the impact by collapsing your elbow, as if lowering yourself from a one-arm pushup.
A more detailed explanation of this hang-on-to-the-handlebars technique is in William Nealy’s 1992 book, ...