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Post by sailracer on Jun 21, 2013 4:17:52 GMT -5
Hmm. Deep thought after further reflection. I think the source of our disagreement is not about using a specified tire correctly in it's correct place, but rather using a tire on the opposite wheel than it was intended. Most of my experience is on bigger bikes where the tires are not interchangeable so that was never a consideration before. After further research it appears that you are correct.  With a directional tread pattern the front tires are generally marked to account for braking forces and the rears are marked to account for acceleration forces. So if you're using the same tire front and back they should be opposite. Just make sure they are going the right way. Whether you are looking at the back of the bike or the front, the V's of the tread pattern should point up. What pmatulew says is correct. So, you probably have a front tire and a rear tire. do the arrows in the tread point upwards when looking at the bike from front and rear? My scoot came stock ,with the same size tires, and the same tread pattern facing the same way. According to the pros, thats wrong. |
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Post by geh3333 on Jun 21, 2013 4:27:34 GMT -5
My new shinkos dont have any type of arrows across the tire like my stock ones ill find a pic.
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Post by geh3333 on Jun 21, 2013 4:30:10 GMT -5
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Post by sailracer on Jun 21, 2013 7:52:49 GMT -5
From what i've learned, If you flip that picture upside down, thats what they should look like on the scoot from both front and rear. I"m assuming those zigzag lines are the tread direction. IMO ;D |
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Post by geh3333 on Jun 21, 2013 9:57:57 GMT -5
The tread direction would be the wheel rolling towards you as you look at the pic. Acorrding to the rotation arrow on the side. This is how i have them mounted on front and back. I would want them mounted like this for more traction especially in turns. This tire seems to have somewhat tread arrows in both directions one way a little more prominent. These tires were probably made like this so you can use them on front or rear and not have to flip them. Still have the traction in turns and help with braking.
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Post by geh3333 on Jun 21, 2013 10:42:17 GMT -5
When the rear tire tread makes contact with the road as it rotates you want the point of the V to face forward this way it is cupping the road and will create the most traction. So looking at the rear tire from the back of the scoot the point of the V should face down.
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Post by sailracer on Jun 21, 2013 10:50:17 GMT -5
I would double check that to verify it. The v is supposed to point up when looking at it directly from both front, and rear.On your tire, its kinda hard to see, so, they are probably the right way. I would ask a tire dealer who does a lot of bikes. Also, just look good at some motorcycles, and note the tread.I did, just for my own peace of mind  |
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Post by pmatulew on Jun 21, 2013 12:10:29 GMT -5
At the risk of putting my foot in it again.... I must respectfully suggest that your analogy should be the other way around. The rear tire, (the SR568 are listed on the factory webpage as rear tires), should have the tread pattern pointing up as you look at it from the rear, so that the tread pattern is pointing to the rear as it touches the ground. Driving the point rearward into the pavement while accelerating. When mounted as a front tire it should have the tread pattern pointing up as you look at it from the front so that the tread pattern is pointing forward as it touches the ground. Driving the point forward into the ground while braking. www.shinkotireusa.com/product/product.php?id=56 The SR568 don't have a lot of tread directionality to them so it's not easy to tell at first glance which way they should go and it probably doesn't make a huge difference. (The skinnier SR567 have a more obvious pattern) Since the SR568 are listed as rear tires, I would go with the marked rotation arrow (if there is one) when mounted on the rear and do the opposite when mounted on the front. |
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Post by sailracer on Jun 21, 2013 12:37:46 GMT -5
that's what i'm saying, pointing up looking directly at the rear, or the front of the bike riight? I think he said otherwise which would be incorrect.
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Post by geh3333 on Jun 21, 2013 19:51:28 GMT -5
The tire on the right i think if looking at it in the pic the tread arrpw is pointing up. The rotation arrow is pointing towards you at the top of the " on the side of the tire " . So the tire rolling towards you is moving forward. Im only sayinh this because i have tjese tires on my scoot and i know you cant see the sidewalls on the pic to see the rotation or drive arrow. I understand what u are saying about running the tires in opposite direction but i thimk you have the direction on this tire wrong. I would still be more comfortable running both the same way , id rather have better traction in turns then front braking. Of course it would be different if my front braking sucked i wouldnt be saying that. Lol
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Post by doublert on Jun 21, 2013 20:00:10 GMT -5
I was reading on the old forum that a guy went a size or two up, and he gained like 3mph...Has anybody tried this from experience? I don't mind paying extra for larger back tire. My wheels are 13", tire size 130-60-13. Is there a size that could make this possible?
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Post by geh3333 on Jun 21, 2013 20:02:14 GMT -5
And if you really look at the front tire on tje left there are arrows in both directiom that are very prominent. This is what i would expect in a front tire. So running the rear backwards on the front you would have to chose which you want to loose braking or traction? To be honest i dont think you would loose much of either do to the tread patter of these tires. I do respect your replies , i hope you dont think im arguing. Lol . I would also like to hear from others that use this tire i have seen a good many on here say they use this tire. I do know that they are considered a very good tire an are rated highly by others. One thing to consider would be to imagine you are spinning this wheel on water the tire would create more traction and throw more water backwards and create a forward thrust with the point of th V facing forward at the time of contact rather then the V slipping threw the water with the poiny of the V facing towards the rear on contact. I think its safe to say many tires are different and have different qualities to consider before mounting.
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Post by pmatulew on Jun 22, 2013 7:20:04 GMT -5
GEH, the internet is full of arm chair warriors arguing technicalities. i generally try to stay out of the many "mines bigger than yours" contests. At the end of the day, in the really real world, if it's working for you, who's to say it's wrong. As you say, the tread on the 568's is rather vague so it's not that dig of a deal.
Just keep in mind that street tires aren't sand tires. You're not likely to be scooping anything but water, which if you pile up enough of it under your tire is going to cause you to hydroplane.
Doublert, sorry for hijacking your thread. Personally I don't think changing the tire size is going to be much of an improvement. You might gain a few percentage points of top end speed by increasing the outside diameter of your tires, but you will do so at the expense of acceleration at the bottom end and throttle response throughout the mid-range as well as possibly negatively altering the handling of the scoot. (Taller tires on the same rims will feel more wishy washy than lower profile tires.)
If you're really intent on deviating from the stock size I would carefully measure the how much space you have for stuffing a bigger tire on your scoot and then find some place where there are other scoots with mounted tires that you can measure for reference.
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Post by pmatulew on Jun 22, 2013 12:06:13 GMT -5
 Too funny! After all this discussion I was out in the garage this morning looking at my project scoot, (basket case I haven't even had a chance to ride yet), and happened to take a look at the tires. It has a set of Duro's with a definite directional tread pattern and they are both mounted the same way with the sidewall arrow rolling forward! So the front is actually backward! It's getting too hot to work outside, so this afternoon I'll have to flip the front around the other way so I can be technically correct. ;D
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Post by geh3333 on Jun 22, 2013 13:34:12 GMT -5
I understand about the arguing thing. Trust me not oncehave i felt any type of anger in my post i hope it didnt come off that way. I think its one of those things when you have a certain product you want to make sure you are using them correctly without any doubt . So i apreciate all they replies and i also apologize for highjacking the post.
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