Tire weight and size vs acceleration/power loss. - Polaris ATV Forum
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post #1 of 22 (permalink) Old 12-14-2015, 08:31 AM Thread Starter
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Tire weight and size vs acceleration/power loss.

So with the majority of aftermarket tires, radials at least, being a good amount heavier than the stock setup, I was wondering where Power loss starts to come into play. In some setups your adding 30 plus pounds of rotational mass to your machine, are the advantages really that great to where guys want to sacrifice motor performance for the better grip of heavy tires? What do you guys think? I know some of you guys run tire setups that added quite a lot of extra weigh to your machines, I'm interested to know the pro and cons.

Also was wondering about tire height vs tire weight. If you have a tire that's taller, but lighter than a tire the next size down, which one cause the most loss in power or acceleration? The taller tire in theory should provide taller gearing correct, but the smaller tire weighs more.
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post #2 of 22 (permalink) Old 12-14-2015, 10:00 AM
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Power is useless If you have no traction,

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post #3 of 22 (permalink) Old 12-14-2015, 02:30 PM
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Its a fine balance between traction, durability, and power loss. That is exactly why I choose the BH 2.0's and went to a 14" beadlock. I was able to retain most of my power lossed by the wheel weight and diameter increase with the addition of a QSC clutch kit. My traction was increased ten fold. The tire durability was also increased considerably over OEM, I would say with the 300 miles I had put on my stockers I had 20 plugs in the tires and probably every other ride I was doing a trailside clinic on tire plugging. So for me a tire upgrade was necessity and I had no choice but to get a heavier and larger tire over OEM.

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post #4 of 22 (permalink) Old 12-14-2015, 03:43 PM Thread Starter
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Quote:
Originally Posted by bp405 View Post
Its a fine balance between traction, durability, and power loss. That is exactly why I choose the BH 2.0's and went to a 14" beadlock. I was able to retain most of my power lossed by the wheel weight and diameter increase with the addition of a QSC clutch kit. My traction was increased ten fold. The tire durability was also increased considerably over OEM, I would say with the 300 miles I had put on my stockers I had 20 plugs in the tires and probably every other ride I was doing a trailside clinic on tire plugging. So for me a tire upgrade was necessity and I had no choice but to get a heavier and larger tire over OEM.

Good info B P. I would love the extra traction, but want to keep performance as well, so like you said a fine line indeed. I think I'll stay with 25" though.
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post #5 of 22 (permalink) Old 12-14-2015, 06:55 PM
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The traction is definitely worth the power loss. And I'm speaking from a stand point of little to no power to begin with. adding larger heavier tires to a 500cc+ machine is sometime not even noticed, but to step up in both size and mass with a smaller machine the difference in power is substantial. but I would never go back to the stock tires. I am able to crawl through stuff in 2wd that took AWD and a lot of body english and multiple attempts to get through with the stock tires.

Where the stock tires would spin, my current tires just grab and go.

for most machines there are clutch mods that you can do to get the power loss back and some times then some. Especially in the 500cc+ sizes.

The stock tires are ok, but I'll never put more than a couple hundred miles on stock tires again. There is just to much advantage to after market tires. My plan is to swap the current tires onto the 570 I'm getting next year. and throwing the stock tires from that onto the Hawkeye. Let me Step son run on those for a while before replacing buying a new set of after market tires for the 570 and moving the STI's back to the Hawkeye.

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post #6 of 22 (permalink) Old 12-15-2015, 01:57 AM Thread Starter
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Originally Posted by ThorsHammer View Post
The traction is definitely worth the power loss. And I'm speaking from a stand point of little to no power to begin with. adding larger heavier tires to a 500cc+ machine is sometime not even noticed, but to step up in both size and mass with a smaller machine the difference in power is substantial. but I would never go back to the stock tires. I am able to crawl through stuff in 2wd that took AWD and a lot of body english and multiple attempts to get through with the stock tires.

Where the stock tires would spin, my current tires just grab and go.

for most machines there are clutch mods that you can do to get the power loss back and some times then some. Especially in the 500cc+ sizes.

The stock tires are ok, but I'll never put more than a couple hundred miles on stock tires again. There is just to much advantage to after market tires. My plan is to swap the current tires onto the 570 I'm getting next year. and throwing the stock tires from that onto the Hawkeye. Let me Step son run on those for a while before replacing buying a new set of after market tires for the 570 and moving the STI's back to the Hawkeye.

I guess what I was getting at also is there a line where a heavier tire that grabs better actually makes you quicker by propelling you forward than a lighter tire with less traction that's more prone to spin or grab less. In your dig your ruining one of the tires I'm looking at, the Black Diamond ATR.

Last edited by Robooo; 12-15-2015 at 02:00 AM.
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post #7 of 22 (permalink) Old 12-15-2015, 05:00 AM
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[quote=Robooo;572466]
I guess what I was getting at also is there a line where a heavier tire that grabs better actually makes you quicker by propelling you forward than a lighter tire with less traction that's more prone to spin or grab less. In your dig your ruining one of the tires I'm looking at, the Black Diamond ATR.[/QUOTE

Where did he dig the BD Atrs? If you are reading the part about the power loss, he is talking about being on a hawkeye which I believe is a 300cc machine. What size machine are you on Roboo? I have been looking at this a bit myself since I do not want to run the factory tires too much longer. I personally haven't had an issue with the factory Carlisle 489s on my 570 touring as far as punctures go and traction has been good, but being my first ATV I have nothing to compare it against. But my buddy's wife's ACE has had a couple of punctures and one tire had a slow leak. If you are sticking to the 25" tires, there are some tires out there that are not drastically heavier than stockers. However, I kind of think that you are sacrificing something to maintain that lower weight. Maybe in the sidewall? Of all the things I have read on the Black Diamonds, I have only seen one post that a guy didn't like them. I don't remeber specifically why. I have been looking at the STI Outbacks, BD XTR & ATRs, Kenda Bear Claw HTRs, and Carlisle Black Rocks. Regardless of what I get, I think the clutch kit will happen regardless of the tire weight. I haven't heard any reason not to do it, outside of money.

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post #8 of 22 (permalink) Old 12-15-2015, 05:46 AM Thread Starter
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[quote=CB73;572514]
Quote:
Originally Posted by Robooo View Post
I guess what I was getting at also is there a line where a heavier tire that grabs better actually makes you quicker by propelling you forward than a lighter tire with less traction that's more prone to spin or grab less. In your dig your ruining one of the tires I'm looking at, the Black Diamond ATR.[/QUOTE

Where did he dig the BD Atrs? If you are reading the part about the power loss, he is talking about being on a hawkeye which I believe is a 300cc machine. What size machine are you on Roboo? I have been looking at this a bit myself since I do not want to run the factory tires too much longer. I personally haven't had an issue with the factory Carlisle 489s on my 570 touring as far as punctures go and traction has been good, but being my first ATV I have nothing to compare it against. But my buddy's wife's ACE has had a couple of punctures and one tire had a slow leak. If you are sticking to the 25" tires, there are some tires out there that are not drastically heavier than stockers. However, I kind of think that you are sacrificing something to maintain that lower weight. Maybe in the sidewall? Of all the things I have read on the Black Diamonds, I have only seen one post that a guy didn't like them. I don't remeber specifically why. I have been looking at the STI Outbacks, BD XTR & ATRs, Kenda Bear Claw HTRs, and Carlisle Black Rocks. Regardless of what I get, I think the clutch kit will happen regardless of the tire weight. I haven't heard any reason not to do it, outside of money.
Well that was some bad auto correct. I meant to say in your sig your running one of the tires I'm looking at....lol. But I have a 750 Kawasaki right now. I do like drag racing and stuff like that thus being a bit conscious of adding a ton of tire weight.
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post #9 of 22 (permalink) Old 12-15-2015, 05:49 AM
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The 570 will handle any 26" tire you want to put on it with ease, no need to worry about a clutch lit. The difference between a "light" tire and a good tire is usually about a total of 10 lbs. or less for the set, which makes zero difference to your atv performance. I guarantee you couldn't feel the difference with the extra 10 lbs. of rotating mass. You will feel a difference between the OEM tires, and any aftermarket tire. If you are worried about losing a little top speed and maybe a slight amount of acceleration, you shouldn't be riding a utility quad. You want speed, ride a sport quad.

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Last edited by bobx2; 12-15-2015 at 07:15 AM.
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post #10 of 22 (permalink) Old 12-15-2015, 06:10 AM Thread Starter
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Originally Posted by bobx2 View Post
The 570 will handle any 26" tire you want to put on it with ease, no need to worry about a clutch lit. The difference between a "light" tire and a good tire is usually 10 lbs. or less, which makes zero difference to your atv performance. I guarantee you couldn't feel the difference with the extra 10 lbs. of rotating mass. You will feel a difference between the OEM tires, and any aftermarket tire. If you are worried about losing a little top speed and maybe a slight amount of acceleration, you shouldn't be riding a utility quad. You want speed, ride a sport quad.
Where I ride, we run pretty fast with a variety of machines, and do ice drags in the winter. I Found a good deal on the Beatclaw HTR I'm leaning towards those in the stock sizing. Even if they are heavier, the tread pattern looks excellent for snow and sand.

Last edited by Robooo; 12-15-2015 at 06:36 AM.
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