Off-Season Edge: Mountain Biking 2.0 With Kevin Jordan

PSIA-AASI’s recently announced partnership with the International Mountain Bicycling Association is all about promoting year-round outdoor recreation through top-level instruction.

Of course, many PSIA-AASI members are already working year-round on the hill, teaching skiing or snowboarding as well as mountain biking. Kevin Jordan, mountain bike coordinator and ski instructor at Snowmass, Colorado, shared a detailed description of the jump progression that he refers to as “CPR” in the Q&A. 

Please tell me more about the Jump Progression of CPR

"CPR” stands for Crouch, Press, Release. It helps students be more successful at jumps. If you have ever “ghost-ridden” (not recommended, but a good visual) a bike over a jump, as soon as the front wheel is in the air, all the force is pushing on the rear wheel. This causes the bike to rotate in a front wheel first position or the beginning of a front flip. This is why people learning jumps often nose-dive over the front wheel or flip over the handlebars pretty quickly. CPR helps us change the trajectory over the jump and avoid this "dead sailor" rotation. Before we break it down, we need to have the anatomy of a tabletop jump. We have the in-run (approach), lip (take-off), table portion (maneuver happens here), and then the landing.

Describe the Crouch Phase.

If we go back to the ABCs, specifically the Action Stance, we want our pedals level, our elbows wide, our knees slightly bent, and our butt off the saddle. As we come into the tabletop, we want to bend our knees and elbows a little more. This will bring our sternum a little closer to the handlebars. All the while, we are looking where we are going. This is helps us get over the jump and set us up for the press and the release.

What about the Press?

Once both tires are on the lip and as we are going up the lip/ramp, we are going to press. We extend our knees and elbows and press through our feet and legs, which transfers energy through the bottom bracket of the bike. This will change the trajectory of the bike from a horizontal trajectory to more of a vertical one. This is similar to a P.O.P. (projection of primary) in skiing/snowboarding.

And the Release?

When our front wheel is about 6 inches or so away from leaving the lip, we are going to “release” and allow the bike to come up into our body. How will we do this? Through flexing or absorbing the forces that the ramp or lip is applying to our bike. We will flex our knees and elbows, allowing the saddle to come up and tap us in the bottom. This helps level out the bike and set us up for the landing. When we land, we are going to extend our elbows and legs and try to land with the front wheel touching down slightly (and I mean slightly) ahead of the rear wheel.

How does CPR translate to snowsports?

Crouch, Press, and Release works in conjunction with the ATML model. The Crouch occurs during the Approach phase of the model. The Press happens during Take-off. The release happens at the end of the Take-off phase and allows riders to perform the Maneuver of “releasing” the bike back into or absorbing the bike back into their body. The Press also coincides with the P.O.P. or Projection of Primary that we use in freestyle.

This is how we do the whole CPR progression with students:

  1. First we practice learning front-wheel lifts, rear-wheel lifts, and level lifts (aka bunny hops). This helps students recover, if they need to.
  2. Then we introduce CPR on flat terrain (on the trail or even the parking lots).
  3. Next we perform the CPR as we learn how to "roll" over the jump. No air happens here.

Once we have all those moves practiced, we add some speed and get some “credit  card” air as we apply the CPR to the Table Top jump!

- Peter Kray

Comments

There are currently no comments, be the first to post one!

Post Comment

Only registered users may post comments.