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manual63
06-05-2003, 10:23 AM
This is a bit more advanced and yes, as sick of hearing me say this as you may be, it is a BMX skill that can carry over to Mountain biking.

Speed rolling or, as BMXers sometimes call it, Speed jumping is a great and fast way to go through dips in the trail or over smaller mounds and log piles.

A dip in the trail can actually help you gain speed rather than slow you down. As long as the length of the dip is not too long for you to clear it with your front wheel by doing a manual (wheelie without pedaling) over it you should have no problems. All you do is lean your butt and weight back over your rear wheel as you approach the dip in the path. Then you pull hard on the handlebars to get the front end up. If you make sure and pull the bars back towards you by allowing your elbows to bend, you can actually hold the front end up longer. Now, as your rear wheel starts to enter the downward slope of the dip, push down (straighten your knees) with your legs to pump through the dip. Make sure to keep pulling the bars back as hard as you can to keep the front wheel up. As the rear wheel starts up the upslope of the dip, allow your knees to bend and absorb the upslope. As this happens, usually your front wheel gets forced to come down, but if you do it right, your front wheel should land just on the opposite side of the dip, clearing it completely. Start off small and work your way up to bigger dips. There is a good one at the top of the first climb at Lebannon to practice on. Also, be careful not to loop out (fall backwards) as this can hurt a ton as you land on your tail bone.

Now if you encounter a mound or log pile, you can do just the opposite as above with your legs. As you approach the mound, put your weight back over the rear wheel and lift the front wheel as described above. As the rear wheel starts up the upslope, relax your legs and allow your knees to bend. Keep pulling back on the bars and allow the front wheel to clear the top of the mound by about 3 or so inches. Let the back wheel come up under your butt and body to absorb the whole mound. As you come over the top, push the front end down and straighten your knees by pushing hard with your legs to pump down the backside of the mound. If done right, you will actually accelerate on the downside. Make sure you shift your weight forward as you ride down the down side and push the front wheel down so you don't loop out.

I know a lot of people like to bunny hop or even jump such things. Both of these uses too much energy and will not gain you additional speed. The idea is to have power to the ground as much as you can. As long as the rear wheel is off the ground, you are losing speed. There are only a few times catching air is more efficient. There is a log pile at lebannon where it drops after the logs on a downhill going into a right turn. This is best to nose bonk or jump off the pile, as speed jumping it might cause you to endo. So be careful what you choose to use these techniques on. Start out small and work your way up, or you could get seriously hurt.

Happy ridng!!!

pwpatton
09-04-2003, 09:32 PM
I haven't tried speed rolling a dip (I've never actually thought about the movement) but I have as a matter of feel alone done this over log crossings. In particular a big log crossing (the 5th one in I think) in the XX loop at lebanon. It's after the long rock where you can either go right around the tree and over the rock or left just around the tree avoiding the rock. Right after you pass that you can pedal up some speed and take the quick left and then right hander at full speed (also very fun) then hit the log pile after that at full speed. It's a bit unnerving at first but it feels as if I'm gliding over the pile. I don't know if I gain speed but I don't think I loose any either. It's a great way to gain time on your buddies if they don't do the same trick. The way you described rolling over the log pile sound like what I do over that log pile. I'm just a bit afraid to think about the movement now since I've been doing it by thinking about it as if I'm gliding over it (more about how it feels than the mechanics of the movement). And yes, my front and rear wheel both stay on the logs/ground. It's really fun and great way to keep up your speed.

Phillip

manual63
09-05-2003, 03:30 PM
My front wheel rarely touches the front side of log piles. I wheelie the front wheel over them and land it on the top or just past the top, depending on the size of the log pile. Being that this is not BMX and is mountain biking, I get exhausted sometimes and don't have tons of energy to always expend. Thus, sometimes I do roll both wheels over log piles to save energy. Basically, the smaller the pile, the more I tend to just ride over them. On bigger piles, I use what energy I have to pull my front wheel over them, especially the real nasty one in the XX-Loop. I think most people slow way down and roll over it. I pick up speed and just pull my front wheel over that whole sucker and my rear wheel hopefully clears the dip or rut in the middle of the pile. A lot of these types of techniques take a lot of aggression and energy.

pwpatton
09-05-2003, 09:31 PM
I've found you can hammer that one with only 1 possible consequence; your rear wheel flying up on you a bit. If you're not expecting it you could crash pretty good. I've only gotten a bit squirly after coming off of it. So I tried using the pumping the bike techinque tonight over that crossing and that seemed to solve that problem. It works well, but I need more practice. The compression and the forcing your legs down really helped keep that back tire down. It was great.

I've never really had a problem with the ruts but there is a fear factor there. Part of what makes it fun, hehe. And yes you have to be aggressive and go for it.

I'm only gonna get faster over that pile once I get better with the pumping technique; and I feel I'm pretty quick over it now. Yea!!!

Thanks for tips,

Phillip

Trevize1138
08-16-2005, 12:57 PM
This is a tough one for me, still. Theo's got one section that's great for practicing this.

manual63
08-16-2005, 01:08 PM
After the rock garden climb, there is this little streatch of twisty singletrack and then a big dip. I like speed roll/manual through that dip. Careful, you have to actually be leaning to the right as you manual through there or you are not going to be able to make the 90 degree right turn and miss the tree.....:)