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FJR Motorcycle Forums
Technical & Mechanical Problems
New tire = new & improved handling
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<blockquote data-quote="Fred W" data-source="post: 409588" data-attributes="member: 3828"><p>Dots are most often to mark the lightest spot, to be aligned with the valve stem, on the assumption that the stem is the heavy spot on the wheel. Refer to step 6 on <a href="https://www.sportrider.com/tech/146_9512_hand/index.html" target="_blank">this website</a>. But even according to <a href="https://www.dunlopmotorcycle.com/infocenter_tiretips.asp?id=7" target="_blank">Dunlop </a>this practice is not universal. For example, my front wheel is NOT heaviest at the valve stem. It was about 70 degrees to one side of the stem. And as you say some tire manufacturers may mark the heavy spot, or not at all (Avon).</p><p></p><p>That's where the truly anal retentive home tire mounter / balancer can do better:</p><p></p><p>Once you have balanced the bare wheel and temporarily affixed the appropriate weight to balance, mount the tire on at whatever orientation you believe to be correct. You can try looking on the tire manufacturer's website for a clue as to what their marks mean.</p><p></p><p>Before you remove the temporary weight you can put the mounted tire on the balancer and see for yourself where the heavy spot on the tire is since the wheel is still balanced, any mis-balance will be attributable only to the tire. Then, without dismounting the tire you can rotate the tire on the wheel to ensure the tire's heavy spot is aligned with the temporary weights (wheel's light spot). Then, remove the temporary weights and doing the final balance with the least possible added weight.</p></blockquote><p></p>
[QUOTE="Fred W, post: 409588, member: 3828"] Dots are most often to mark the lightest spot, to be aligned with the valve stem, on the assumption that the stem is the heavy spot on the wheel. Refer to step 6 on [URL="https://www.sportrider.com/tech/146_9512_hand/index.html"]this website[/URL]. But even according to [URL="https://www.dunlopmotorcycle.com/infocenter_tiretips.asp?id=7"]Dunlop [/URL]this practice is not universal. For example, my front wheel is NOT heaviest at the valve stem. It was about 70 degrees to one side of the stem. And as you say some tire manufacturers may mark the heavy spot, or not at all (Avon). That's where the truly anal retentive home tire mounter / balancer can do better: Once you have balanced the bare wheel and temporarily affixed the appropriate weight to balance, mount the tire on at whatever orientation you believe to be correct. You can try looking on the tire manufacturer's website for a clue as to what their marks mean. Before you remove the temporary weight you can put the mounted tire on the balancer and see for yourself where the heavy spot on the tire is since the wheel is still balanced, any mis-balance will be attributable only to the tire. Then, without dismounting the tire you can rotate the tire on the wheel to ensure the tire's heavy spot is aligned with the temporary weights (wheel's light spot). Then, remove the temporary weights and doing the final balance with the least possible added weight. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
New tire = new & improved handling
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