Hopefully I did this correctly as I am a computer moron.At about 8:50 and at the end of the video you you can see the 90 ft table after a couple of smaller table tops.The camera is facing backwards because they usually get coverd with mud if facing forward.<iframe src="http://www.youtube.com/embed/3qs9zhKpvBY" allowfullscreen="" frameborder="0" height="315" width="560"></iframe>
Here is some more info from us if interested, quad racers, not all but many of the same principles. Hope it helps…years and years and countless hours on many, many tracks, turning wrenches in the garage daily, adjusting shocks, on the road, little time in ER, etc, most of all found memories father/son bonding. All serious racers have TNT’s (Terry N Trever’s) respect.
Hard to tell what’s going on above looking rear but looks like he is passing everyone lol, keeping it level which is what we do so that all 4 shocks absorb the impact or work together. We don’t want our nose high or low in the air or when we land, little high is ok, or we loose fwd momentum. The goal landing most use is to adjust the low speed compression so that your shocks bottom out at least once on the track. That will assure the setting is not too hard or soft for the rest of the jumps. Low speed compression biggest use is jumps. Rebound is important too, we adjusted so that when we land we don’t bounce back, slow it down if we do. Then go check rebound on the whoops so that our arms are retracting fully before the next extension and are not “packing up”. You’ll feel a stiff bucking action if it is packing to where you have no shock absorption left after several repetitions. If we can double or triple (jump) whoops on a track that changes the setting, rebound speed slows down, hi/lo compression changes too. If you’re racing the body roll shift to the rear upon landing impact CHP to WHP is controlled by high speed compression if you have one, it’s also useful for getting out of the gate. We also pre-load our shocks by pushing down right before launch to give us a lift boost more launch for small lipped long jumps, don’t know how to that on a UTV. When my son and I ran TNT School of ATV Racing out of Wichita , KS , we assessed each racers strengths/weakness worked with them to adjust their shocks setting’s to their level of racing first and foremost, then on to personalized racing lessons. My son is a jumper, weaker at hole-shots so we focus on them, for example. When we arrive at a race track during practice it is the first thing we do, as the track changes we adjust. I am the eyes off the track, I watch his suspension and can see if he’s packing up or not, bottoming out, HS compression on small bumps, etc, and it’s good to have a spotter with a trained eye. I have a marker board I write on to communicate while he is racing.
I’ve been on track crews. It’s challenging when you have bikes/quads/utv mix. Bikes wants steep lips and don’t like quads ruining their ruts, ruts are grooves in burms/turns they use for speed and stability quads don’t. When we race quad series only the tracks are built for quads/utv’s. UTV’s tear some tracks up their so heavy including lips, quads don’t like it. Then to make matters more challenging, you have have the pee-wee and youth classes. Can’t make the jumps as steep/long as the pro’s want not safe for the kids. Not easy! I’ve seen lots of arguments, complaints, etc….MotoX tracks usually have longer jumps less of a lip than SuperX/ArenaX where lips produce lots of short air. Some are better at MX vs. SX and visa versa, two different animals, XC, FT others, we’ve done them all as most good racers do.
There are different types of jumps, table tops are relatively flat on top, doubles have couple dips, triples few and are more dangerous if you come up short, step ups the landing is blind….you see all three in the videos below. My son’s worse injury in his racing career was a 90 foot triple he didn’t hook up on the lip it was hard packed unprepped concrete hard clay with loose dirt, came up short cased or bottom out went flying over the handle bars landed on his hand almost completely broke it off and cracked broke his ankle too….On his home practice track after just getting back from LL national in TN. Tire compound means a lot and understanding the terrain. We didn’t have a lot of choices at home to learn on so we used a MX table top. I set cones out for my son to hit and progressively move them farther away to the landing. The table top landing was a little hard, but for him getting use to the lip, then distance, than the landing worked. Later we learned in races we had to clock in the air which we did progressively too, and practice hitting all areas of launch/landing pads. We adjust our shocks along the way.
Here couple some quad videos so you can compare the difference. It’s my vision for UTV racing; I think they can jump as high/far and in numbers like this, stock with some design changes. It's more fan friendly when more are jumping and battling for podium. OC Wells and Dumont are in them.
[ame="http://www.youtube.com/watch?v=_JLLiCutz5o"]Huevos 12 - Movie Preview (ATV/Offroad Freestyle/Racing DVD) - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=RlfaP7tyJdc&feature=endscreen&NR=1"]huevos 9 p.1 - YouTube[/ame]
Caleb’s first attempt you can see the aft cg struggle to get it up in the air. He’s a quad guy, not much UTV’s. He and my son have raced the same TQRA regional pro class for years. In this case, again it’s easier to back flip a quad where the CG is more centered vs offset to the rear since centrifugal force acts on the UTV rear CG/roll axis to pull the UTV fwd end more forward/down than up/backspin/flip, same type of issue jumping or lawn darting. You can bet the guys @ ATR get this and everything I posted about it and have the UTV dialed in best they can with the caveat that it is to remain as stock looking as possible. No doubt in my mind the weight distribution can be improved on UTV’s and overall weight without degrading it’s ability to adopt to all kinds of different terrain and riding levels as proven by the bike/quad industry. It’s just a matter of time.
[ame="http://www.youtube.com/watch?v=AayagYhK9uE"]ATR Caleb Moore 1st Attempt UTV Backflip Fail - UTVUnderground.MOV - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=U26xSNl3Vq0"]ATR Caleb Moore 1st UTV Backflip Landed - UTVUnderground.MOV - YouTube[/ame]
Didn’t take long for Trever to jump our XP900 @ Glamis I won’t even get in the car with him driving, he’s 22 and has learned that fear can be his worse enemy from an early age. Next time we talk I’ll ask if he has any advice from a drivers view point.
But yes even my son does not agree to all my viewpoints or can put them to use nor I his. If it is useful use it otherwise don’t try it may not work for you or you may not be ready for it. Be safe!
