Tag: <span>bunny hop</span>
Two new ‘how to bunny hop’ videos published recently focus on wrist/shoulder motions:
1. James Wilson at MTB Strength Training Systems has a blog post titled How to use your wrists to Bunny Hop with flat pedals with this video embedded:
2. Chris Carter at MTBTips has a new How to Bunny Hop page with this video embedded:
Last week I blogged about how to get up and over the bridge rock at Lebanon Hills. In a comment thread on Facebook about the video, Dan Haglund noted that my chain ring bashguard made contact with the rock. I wrote:
I think this was because I placed the front wheel a little too high on the rock, almost clearing the front edge. I think it’s best if it bounces off the rock a bit about 3/4 of the way up because when the compressed forks rebound, the steeper angle of the bike gives you more clearance for the bottom bracket.
I poked around and found this old video called Going Up Obstacles (Getting up objects) featuring Hans Rey and pals in which they show how to avoid having the chain ring bash the rock. It’s a trials video but it has application here. I can see that I need to learn how to use my leg/foot to lift the rear wheel with that scooping motion. At the 2:20 mark:
Before your chain ring or your back wheel hits the object, you have to throw your weight forward a certain way over the handle bar and at the same time you lift with your feet pushing down, back and up and unweight the back wheel enough to lift it behind you and onto the object. An advanced technique you can learn to hop up high objects is to ram the front wheel into the top of the object. The wheel bounces upward, giving you added lift.
MORC member Clay Haglund reported on his attempt and Dave Tait’s method:
I manualed into it and as soon as my front tire hit the top of the rock, my bash ring "BASHED" hard into the face of the rock. Dave Tait showed me how the pro’s do it. He pedaled in with some good speed and within the last six inches of the wood bridge, he pulled off a bunny hop that cleared that two and a half foot gap and had his BACK tire landing on top of the rock…. AMAZING! His bike has got to be pushing 40# too as it’s heavier than mine which is 35#.
After holding my bike in position on that rock, I definitely think the 29" wheels are a big help with conquering this without a clean bunnyhop. With my front tire on top of the rock, my back tire was right at the base and bash guard was in contact with the face. I think I’d have better luck coming up slow and trying to trials hop it.
I told Clay that I thought the bashing could be avoided without having to do the full rear wheel leg/foot lift of a bunny hop, just unweighting so last night I went back to Lebanon Hills to see.
I started by attempting a more extreme angle to the Leb skills park rock that I’d mentioned in my earlier blog post as a good training rock. Ray Brown took the video:
I got over it clean but as you’ll hear in this video, not without bashing:
So I wasn’t confident that I could do it on the bridge rock without bashing. Here’s my attempt, first at normal speed, then a slo-mo version, then stop motion:
As you can see in the final frame, I was able to clear the rock without my bash ring making contact. Front wheel placement didn’t seem to be a big issue as I originally thought.
But you can also see that the rear wheel does make significant contact with the rock. I’m able to absorb it without too much bounce back but ideally, a well-executed bunny hop with full rear wheel leg/foot lift would be best. I need a lesson from Dave Tait.
Last night I reread Chapter 6, Wheelie and Hop Over Anything in the book Mastering Mountain Bike Skills by Brian Lopes and Lee McCormack. Some quotes:
… push explosively into your pedals and propel your body forward. After you push, lighten your feet to allow the pedals to come up.
… At the moment your weight presses into rear wheel, press explosively down into the pedals and spring upward. If you get light on your pedals… the rear wheel will levitate.
… The harder you push your pedals down, the harder the earth returns the force, and the higher you go. It’s just like hopping on your feet.
He uses the label "lift your rear wheel" in several places but nowhere does he define this as a scooping motion where your foot/leg actually lifts the wheel like Hans Rey described in the video I cited.
Most of the how-to-bunny-hop videos that I’ve pinned to my Pinterest board on the subject recommend the scooping/lifting motion.
But look at the one titled Bunnyhop for Beginners which has no narrative, with text captions that appear to be in Japanese and/or Chinese. The slow motion sequences, especially the practice exercises starting at the 37-second mark (screen capture above), seem to show what Lee McCormack recommends: an explosive pushing down into the pedals and not a scooping/deliberate lifting up of the rear wheel. My inclination is to learn the pushing down technique first.
I’ve been eyeing the big rock at the end of this bridge on the XX loop at Lebanon Hills every since I saw it for the first time back in the summer of 2011, shortly after I started mountain biking and took photos of all the technical features in the park at that time. I knew it would require speed to get over it but I didn’t have a grasp of the skill required.
When the Lebanon Hills skills park opened a year later (Aug. 2012), I got the hang of riding over the rock in the photo on the right using speed, a manual (non-pedaling wheelie), and a concluding modified bunny hop.
The approach to the rock is slightly downhill so it’s easy to get going fast and coast ever-so-briefly prior to starting the manual. The face of the rock has an angle to it that makes it less intimidating — you can’t just coast up it but it doesn’t require a perfectly accurate placement of the front wheel. As the rear wheel is about to hit the rock, you have to unweight (unload) with your legs so that it doesn’t bounce back. It’s a bunny hop motion but you don’t really have to use the rear foot ‘scoop’ motion to lift the rear wheel.
So Friday was the perfect time to try the bridge rock: I was riding with my eldest son Collin, visiting from New Jersey; and I had all my body armor on, including my full-face helmet. Everything was pretty much the same as riding the skills park rock, only 1) more speed (you can see me furiously pedaling the first half of the bridge); 2) starting the manual further from the rock; and 3) placement of the front wheel high on the rock, as the face of the rock isn’t angled.
I rode it a second time, to prove it to myself that it wasn’t a fluke. Piece o’ cake!
Here’s the 13-second video clip of my first attempt. Below that is an 8-second slo-mo from the same video, but just the over-the-rock sequence.
At the Cuyuna Lakes Mountain Bike Festival grand opening last June, I asked Hans “No way” Rey how he was able to leap his bike vertically from a dead stop to the top of a picnic table. He pointed to his calf muscles, explaining that he lifts the rear wheel off the ground with his rear foot pushing back and up against the rear pedal. I didn’t own a mountain bike at the time so this concept didn’t make sense to me.
Nor did it sink in when I blogged back in August about learning to manual and noticed in BikeRadar’s Learning the Manual – Part 4 that there is a sentence about the bunny hop in which the author wrote:
Pushing forward on the bars as you ‘scoop’ backwards against the pedal with your rear foot to lift the rear wheel off the ground will also help.
It wasn’t until I saw this new BikeRadar video on the bunny hop in which Sam Pilgrim isolates the rear wheel lift with the rear foot (Step One in the tutorial) that I ‘got it:’
After just a few minutes of practice today, I was able to use this motion with either foot to clear a curb with my rear wheel. No bunny hop (or is it one word, bunnyhop?) yet, but I’m confident I’ll get it. I’m young yet.