KX Riders
Maintenance & Technical => KX500 Original => Topic started by: medic500 on October 12, 2007, 05:44:37 AM
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Hey guys I will be going to glamis with the new k5 and was woundering what size paddle tire to go with, 8 or 10 cup? Iam 280lbs, maybe the 8 cup to get it spining? thanks for your input :-D
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I run this tire 110/90-19 10 paddles.
http://www.amstires.com/productDetails.jsp?product_group_id=1922&category_id=1184
With riding gear about 265lb.
Front http://www.amstires.com/productDetails.jsp?product_group_id=1921&category_id=1184
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You may want to do a search on this topic. This just one of the many threads we have had on paddle tires.
http://www.kxriders.com/forums/index.php/topic,211.0.html
Also there is a thread on how to ride with a paddle tire.........
Alan :-D :-D
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Danger is right... 10 cups. Others will tell you that just because they run an 8 cup that you should too... not the case. YES an 8 cup will work and get you around in the sand, but this is how it works... An 8 cup is for a 250, Why you ask? Because a 10+ cup can be too much traction and will bog a 250 and make it have to work too hard. Why NOT an 8 cup on the 500 you ask? Because the 500 makes more than enough power to handle the traction a 10 or even a 12 cup provides without bogging or over working the bike. An 8 cup on the 500 = less traction = excess wheel spin which in turn = constant higher revving = higher engine temps = more wear and tear not to mention wasted fuel and power.
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GDubb said it all. A+++++
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on my last dune trip my 10 cup turned into a 8 cup.
lets just say i rode my banshee the rest of the time...
btw what tire pressure is every one running, i changed tire pressure up to 15 psi and after one ride the paddles were gone..
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even at my weight (285) a 10 cup wont bog the bike down?
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Danger is right... 10 cups. Others will tell you that just because they run an 8 cup that you should too... not the case. YES an 8 cup will work and get you around in the sand, but this is how it works... An 8 cup is for a 250, Why you ask? Because a 10+ cup can be too much traction and will bog a 250 and make it have to work too hard. Why NOT an 8 cup on the 500 you ask? Because the 500 makes more than enough power to handle the traction a 10 or even a 12 cup provides without bogging or over working the bike. An 8 cup on the 500 = less traction = excess wheel spin which in turn = constant higher revving = higher engine temps = more wear and tear not to mention wasted fuel and power.
I have destroyed every production paddle on the market with my k5. I used to take two paddles to the dunes because one would not last the whole weekend. I have had 10 and 12 cup paddles but my favorite paddle to date is the 8 cup turbo paddle it hooks up better than any production 10 cup I have ever tried and it last for more than one ride. I actually wear them out rather than brake off cups. It also has small ribs on the sides that help keep you from falling down and looking stupid when you try to turn around at low speeds and it is one of the cheaper tires you can buy. I have no problem blowing the doors off of other 500s that are running ten cup paddles. I have no over heating problems and my bike runs fine. This paddle scores a 9 out of 10 with me and I have burned up some paddles tires in my time.
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depends on your gearing, is the bike stock?
i usualy run a 15/42 gear setup unless i plan on finding hills then i drop down to a 15/48 because i run out of power on hills, i cant pull 4th w/ the 42. but then again i am not stock..
if the motor is stock run stock gearing or lower with the 10 paddle
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BDI-
what pressure do you find works the best?
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I run 14psi but Im not sure If that is best. My gearing is 14/45 It's a little taller than stock. My bike Is basicaly stock except the compression has been raised a little, It has a little over 200psi,it has a little port work, a little head work,the cylinder was raised a little, it has a little bit bigger carb and the motor Is in a little 250 chassis other then that It's basicaly stock.
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I also run the 8 blade turbo paddle as does most of the group I ride with. It's very durable and hooks up well. :mrgreen:
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Hey Arigato, do you have any complaints about the eight cup turbo paddle? You know, to be honest with you I think there is a lot of myth involved in the paddle tire department. It could be that paddle tires with more cups weigh more and are harder to turn giving the feeling of more traction, like adding weight to your flywheel. The last time I went to the dunes there was this guy with a cr500 that had so many cups you could not add another one, he had an extended swingarm, you could see he had a bunch of money in this thing but It was the slowest cr500 I had raced In awhile. I felt bad for him, if I had something that looked like that and I got my ass handed to me by a 100+feet by something with a stock wheel base and a 8 cup I would take It home and burn it. I think I would rather have a well designed paddle, rather then one that just had a bunch of cups glued on it. I think It's kind of like throwing money at a problem to fix it.
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i usualy run a 15/42 gear setup
How did you come up with that gear ratio are you trying to set land speed records? Have you considered putting a fairing on your Kx500 :lol: :lol: :lol:
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I run a Cheng Shin 560X18 10 Paddle on my 01 KX5! :-D
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i like to scare the sh *! out of my self, but in the sand my bike cant pull the hills as well, yet...
many years ago a cop clocked me doing a wheele just under a buck thirty (or so he said, i thought it was more like 110mph)
i ride my Yz on the tight trails, the k5 is too heavy for them so she gets the wider trails and i found my self running out of gears, i also change gearing a lot depending on where i ride.
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i really like running lower pressure in the sand, usually 6.2 to 8.6 psi depending on how wet the sand is. my tires were lasting longer with the lower pressure but every one at the shop gave me a hard time but each time i run higher pressure my tire doesnt last but one or 2 rides..
i dont know, do we have a tire expert here???
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According to my gear ratio calculator the theoretical top speed of your bike is 165 mph. A buddy of mine Jeff price of price racing (a full on Kawasaki factory backed team) went to a dry lake bed with team Honda to do an artical for Dirt Rider magazine. Their goal was to to gear the kx500 and cr500 factory race bikes so high that they would slow down. They started gearing them up a little at a time the cr500 peaked out at 129mph and the kx500 peaked out at 142mph. Jeff loves telling that story because the honda guys striped every thing off the Hondas that they didn't need to run. Jeffs team did not take one bolt off their bike they ran It just like they were in a desert race, skid plates, pipe guards and all. I plan on doing the same thing with my kx500 very soon we are going to use GPS and a radar gun, should be fun. I will be taking pictures and posting all results hear.
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i really like running lower pressure in the sand, usually 6.2 to 8.6 psi depending on how wet the sand is. my tires were lasting longer with the lower pressure but every one at the shop gave me a hard time but each time i run higher pressure my tire doesnt last but one or 2 rides..
i dont know, do we have a tire expert here???
I think with the lower pressure the paddles bend backwards and do not hook as well so It would make sense that your tires would last longer. I run the king paddle at 14 psi and it lasts just fine and it hooks awesome. It took some convincing to get me to try that paddle because it was a eight cup my ego kept telling me I had a big bad ass 500 and an 8 cup would never do but I was wrong.
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BDI...No complaints running the 8 blade turbo paddle. I also run in the 15-20lb. range with it as well. The only time I get excessive wear is running comp. hill at Dumont because all the sand is blown out at the bottom.
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hill at Dumont because all the sand is blown out at the bottom.
It gets down to the bed rock,Yes that will kill a paddle in a couple of hours :x :x :x :x :x
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I found a pic of my KX with the monster 560X18 on it! :-D :-D :-D
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I also run the king turbo 8 paddle. works good for me hooks up real good throws a killer roost and like BDI said it has little fins on the side between the paddles so its stable at low speeds. never noticed any excesive wheel spin and bike didnt get hot on me ran like a champ. raced some 450's with 10 paddles got off the line in front every time and didnt see them again till i was turning around to line up again. so i dont think i was having excesive spin from a stop
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Alan that paddle is a biggen. They probably do not make that in a 19 inch do they.
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Nope they only make it in a 18" I had to get a special sprocket and chain for it because it has to be all the way back on the adjusters and even then it will eat the flap! It gives unbelievable traction, the front wheel is never on the ground. You have to steer by moving your butt around on the seat! :lol: :lol: :lol:
BTW the setup is Paul's!
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I have to admit I have never ran that size but I did run a 19 inch 10 cup from those guys. At one time I had this grand idea about building a super moto wheel and having some paddles glued on a shaved street bike tire but that was a pipe dream that never happened.
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I have to admit I have never ran that size but I did run a 19 inch 10 cup from those guys. At one time I had this grand idea about building a super moto wheel and having some paddles glued on a shaved street bike tire but that was a pipe dream that never happened.
You can go to Skat Trac and get what you described, a street bike tire with paddles glued on. They will make them in any size you want, I have a model t 21" tire shaved with 21 paddles staggered. The problem is that most street bikes are 17", Yamaha uses some 18" and you can use a 18 core and have them build any configuration you desire.
I think your right, paddles tires need to run a higher pressure to prevent flexing.