In our previous ZEP
Mythbusters articles, we addressed the myth of 'moving back to descend' and focused on why being neutral and mostly centred on the bike is key for improving your stability, balance and traction. We'll continue with the same theme here in part two, by taking a closer look at how this myth applies to steep terrain, rock rolls, and braking, and how we can use the fundamental skill of position and balance, to address it.
First, let's have a quick review of the key points from the previous article:
- A good position on the bike helps improve your stability... not letting the forces of the trail push you around.
- Being mobile to allow the bike and body to adjust to the terrain is equally important.
- The neutral and ready positions are simple reference points to then move, adjust and balance from.Here, the rider is in more of a ready position: chin over stem, bending at the waist, low and wide. This centred position helps keep good traction on both wheels and allows for great range of movement in any direction when the rider needs it.STEEPSThe Myth
We've all done it. The trail gets steep and we lean back, over the rear wheel. Since we feel like we may go over the bars on steep terrain, this seems like a natural reaction to the situation. The problem comes when we start weighing up the pros and cons. Sure, it does make it harder for the rider and bike to rotate forward, flipping you over the bars, but can we achieve the same thing without the negative effects that leaning back brings with it? So what are the cons to moving back? With your weight back typically:
- Reduces front end traction.
- Compromises the front brake, since a brake can only work if the wheel has good traction.
- Reduces speed control since the rear wheel sucks at slowing you down on steep terrain.
- Reduces range of movement and therefore control, since your arms are now straight, or nearly straight.
- Makes it very difficult to steer, move, balance or adjust to the terrain, since there is less range of movement.
So, we've potentially stopped ourselves from flipping over the bars, but at the expense of lots of other really important stuff... like speed, control, and balance!The Solution
Simply put, can we reduce the likelihood of going over the bars without bringing in these negatives either at all, or a least to a lesser extent? Yes, we can! Instead of moving back, try to get low. The position of an objects centre of mass (COM) directly affects its stability. On a slope, to make the object more stable (less likely to tip over) we can move the COM either to the back or we can move it down.
As long as the rider's COM doesn't move in front of the contact patch of the front tire, they are unlikely to start going over the bars (OTB). From a physics standpoint, this is because as long as the COM of an object doesn't move outside of its base of support (BOS), it will not tip over.
As we've talked about, riding isn't about hard and fast rules that apply all the time. It's more about understanding techniques as tools. Tools that can be adapted and tweaked as needed, based on the situation. So what's the message then? Most of the time, riders are moving too far back and moving back before they need to. Instead...
- Try getting low before
- The lower you get, the less you'll have to move back, if at all.
So, even though moving back can make it safer by helping to avoid an OTB, the idea is to try and use this as a last resort rather than a first option.Steeper terrain naturally makes us think we need to move back. Getting low keeps your COM between the two wheels, maintaining your stability (stopping you from going OTB), while also keeping traction and braking power on both wheels. This is key if you need to control your speed.
At first, it can feel intimidating or even alien to not lean back on a steep trail. But don't worry, a million people have been there before you! Remember, you're not moving forward on the bike, you're just trying to stay as close to the middle as you can... at least to begin with. And, if you move a little over the back, that's probably okay, especially if you are braking or it's a rough trail. Just be aware, though, as soon as you move too far back, your front brake will no longer work and your range of movement to control the bike will be compromised. This being said, there are always exceptions and on a crazy steep trail, with the brakes applied, you may well have to move over the rear of the bike quite a lot... again, the key is to use this as a last resort in an extreme situation, rather than something you do all the time.
ZEP's guest coach, Chris Kovarik
, tells us his thoughts... "For rock rolls or steeps, I would say from a centred position, hinge at the hips, chin over the stem, while bracing with arms slightly bent, not locked. This keeps your centre of gravity low while keeping good movement in your arms and legs over the bike. Plus, your weight is relatively close to the centre to maintain front wheel grip. Without that, you've got no front brake!".
. As you can see above, Chris is low, elbows are bent and chin is close to the stem.Again, here Chris is low helping him stay closer to the middle of the bike. This keeps him more stable, gives him plenty of range of movement to work with and maintains good traction (and therefore braking power) on both wheels. Keeping the elbows flexed is key - as soon as your arms are straight, you know your weight is most likely pretty far back on the bike
Other advantages with trying to stay closer to the middle on steeps include:
- If the trail suddenly drops away, you'll have the range of movement to be able to lead the bike through.
- If you need to slow down or maintain speed (not speed up), you'll have better traction for the front brake to work.
- If you need to turn or change direction, you'll have better range of movement to turn the bars and control the bike.
- If you need to pop the front wheel over a bump or dip, you'll be in a better position to make this happen.
- It also looks better!
Try to come into the section as centred as you can, and as low as you feel you need. It's from that position you can then allow any other movements, balance and adjustments to happen from there. Being lower and centred before the rock, gives me good range of movement to lead the bike through with my arms, keeping stable and mobile. This range of movement is key to help separate the bike from the body so it can move underneath me, while my body remains fairly stable.
Here's an example where I'm low but also have the bike just ahead of me, with my chin slightly behind the stem. This can help put you in a stronger position to brace against any bumps that are trying to slow the bike down (and potentially pitch you forward), or help you brace, if you're braking on a steep rock roll. Centred enough for good traction and braking, but slightly back to help brace and stay stronger.
We have to be careful though, if we say back, people typically take this too literally and move too far, losing front end control and stability. Instead, try to see it as an adjustment of the bike moving slightly ahead of you, rather than you moving back on the bike. Semantics, I know, but these slight changes in thinking, or the language we use, can make a real difference. And again, the pros and cons come will always come into play. This slightly rearwards position may give a stronger stance to push through any fast speed impacts, or help you brace when braking on steeps, but it can still reduce front end traction. The key is to remain adaptable and mobile, and keeping making the adjustments of your body and bike underneath you, to get the best outcome for the situation you're in.HEAVY BRAKING
So, in terms of riding steep terrain, trying to stay closer to the middle of the bike is going to help your stability, range of movement and traction on both wheels. We've talked a little bit about his this affects your braking, but let's get into this a little deeper. As some of you may know, the front brake works better for controlling speed on steeps or slowing down quickly, when compared to the rear brake. This is because when the rider is slowing down rapidly, the front of the bike becomes heavy. This is mostly due to a phenomenon called load transfer - which explains why the front wheels in a car with no suspension, still get heavier under heavy braking than the rear wheels (and therefore why the front brakes in a car are applied a lot more often and to a greater extent, than the rear brakes).
- When a rider is braking hard, the front of the bike typically gets heavier than the rear.
- Increased weight means more traction on the front wheel.
- The more traction a wheel has, the harder the brake can be applied before the wheel starts to skid.
- The harder the brake can be applied without locking the wheel, the better it will be at slowing you down.
Under heavy braking, people are nervous about going OTB, which is where the common technique of moving back kicks in. However, much like with steeps, can we achieve the same thing but without taking traction and braking power away from the front wheel? Of course we can! Instead...
- Try to get low and brace by dropping the heels and slightly tensing your muscles.
- This will help avoid an OTB by lowering the rider's centre of mass while...
- Maintaining a more centred position and therefore better traction on the front wheel, for better braking.
This is even more important on a steep slope as the bike is constantly trying to accelerate. If the rider moves back they can only use the rear brake (since the front wheel is too light and won't have enough traction), often resulting in lots of skidding and picking up speed - we've all done this one as well!
Ultimately, braking can be a very personal and situational thing. The student's ability level, confidence and experiences, along with things like the terrain surface, pitch, type of bike, their brakes and tires, are all factors that contribute to how a person brakes. The key for effective teaching and skill development in your own riding is to try and utilize a pros and cons approach, so different techniques can be introduced at different times, depending on what these factors are doing. Let's take a look at a few examples...
Moving the hips behind the seat can help boost confidence and maintain some balance when trying to brake more quickly; especially for novice to intermediate riders. However, it does remove weight and therefore braking power from the front of the bike. We therefore try and find a balance as soon as possible, to introduce students to braking by bracing and getting low, rather than moving back. Incidentally, the stopping distance with the same speed was a foot longer using this technique, than in the picture below.
Getting low and bracing requires some practice to gradually build the confidence to stay more and more centred as you learn to trust the front brake more, and learn to trust your body to brace against the forces that are pushing it forward on the bike, as you slow down. Take your time learning this! If you ever want to ride steep sections or rock rolls in control, even slowly, then practicing this technique is key. It should feel rather like you're doing a push up as a lot of the weight can go into your arms. This is good... this is you putting weight (traction) into the front wheel, ultimately helping that front brake work better. However, riders can often find a good balance between this braking technique and the one above as they find somewhere in the middle, that works best for them.
You can sometimes see the pro's use this technique after they cross the finish line at World Cups. Using the key points from the neutral position as a baseline, the straighter arms and legs (and dropped heels) provide very strong supports from which to maintain a close-to-centre body position, as they brake heavily. On steep terrain this position can make a rider too tall and also reduces your range of movement to control the bike.
Mastering your position and balance on the bike is the fundamental skill in your riding. With time and practice and seeing how it can help your other skills, like braking, you'll be able to ride faster, tackle steeper trails, or even play with features you're previously thought were scary... like doing a stoppie down the Clown Shoes drop!
As with any of these techniques, remind yourselves to view them as tools. There's not one way of doing things and each tool has its own merits and drawbacks, ultimately enabling us to apply them in different situations and to varying degrees. Choose the one you think you need in the current situation. Change it if you need to. Try using a couple of different tools and see which works best. Mountain biking, by its very nature, involves constantly changing variables and if we try to apply a one size fits all approach to teaching and learning it, we will soon come up with roadblocks, learning plateaus and most likely a lack of basic understanding. People in today's world want a simple fix. "Tell me how I should ride all the time." "What's the
best body position"?
While we can give them a quick simple answer, this should be viewed as just that: a simple answer. True progression requires an open mind and a willingness to look outside your own knowledge, challenge the conventional wisdom (the world is not flat!) and try to develop your skills through a balanced and educated approach. Mountain biking isn't always easy. It's not supposed to be. Enjoy the challenge, be creative in your learning and stay open minded.
To summarize this article, the same message works well for both riding steeps and for braking. Whenever I ride into a steep trail and/or I really need to control my speed, the thought in my head is..."If I'm close to the middle of my bike and low, I'm good to go!"
Happy riding peeps,
PaulAbout the Author
Paul Howard is the Owner-Director and Head Coach of Whistler-based coaching company, ZEPtechniques
, Technical Director of the international, industry leading Professional Mountain Bike Instructor Association
, Technical Education Committee and 2015 Interski Team Member for the Canadian Association of Snowboard Instructors, Head Snowboard Trainer for Whistler Blackcomb SnowSchool, and has been teaching mountain biking and training mountain bike instructors around the world, since the late 90's. Paul trained approximately 100 riders and 250 instructors worldwide in the last year, alone.About ZEP - 10th year anniversary!ZEPtechniques
is a Whistler-based mountain bike camps and instructor training company. Established in 2006, ZEP is celebrating our 10th year anniversary and offers weekend and single or multi-week, adult specific rider improvement camps
, as well as private lessons
, customized programs and Whistler MTB Tours
. ZEP's Instructor Training services include the industry's original, multi-week mountain bike instructor training camps
; training riders four days per week with evening seminars on suspension set up, bike mechanics, nutrition, as well as strength and conditioning sessions, all with industry experts. As developers of the internationally available Professional Mountain Bike Instructor (PMBI) Certifications and Directors of the PMBI Association, ZEP has long played a key role in establishing and improving the finest teaching practices and instructor certifications, within mountain biking.ZEP is proudly supported byTransition BikesANVL ComponentsFox Racing ShoxTroy Lee DesignsFive TenMRPEVOCEvolution WhistlerVorsprung SuspensionReel CamerasSpun StudiosStarlight Custom ApparelKovarik RacingPhotosBike Park Photos
@davetrump @RedfernMedia Previous articlesPosition for Descending & CorneringClimbing in Technical TerrainBraking in Downhill CornersHow to Learn (featuring a discussion on pedal positions in corners)
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