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05-20-2009, 02:49 PM
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#1 |
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Moto GP Star
Join Date: Feb 2008
Posts: 12,156
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DR650 turned into SM, now has a problem
One of my coworkers has a Suzuki DR650 that he turned into a SM. He took off the 21" front wheel and put a 17" front wheel on it. Now he is experiencing what he is calling a "tank slapper" like condition when he gets to about 70mph. He cant figure out why. I'm guessing that by going to the smaller wheel, he essentially lowered the front of the bike 2 inches and has fucked up the steering geometry. Anyone have any thoughts on what is wrong? Forks are bad? Wheel is bent? It doesn't have any problems below 70mph.
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05-20-2009, 02:52 PM
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RIP REX
 
Join Date: Feb 2008
Location: Murfreesboro, TN
Moto: 2008 1125R
Posts: 7,467
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sounds like wheel balance issues
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05-20-2009, 02:57 PM
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#3 | |
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Moto GP Star
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Quote:
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05-20-2009, 02:58 PM
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RIP REX
Join Date: Feb 2008
Location: Murfreesboro, TN
Moto: 2008 1125R
Posts: 7,467
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how tight are the spokes? they might need adjusted or maintained
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05-20-2009, 03:00 PM
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#5 | |
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Moto GP Star
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Quote:
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05-20-2009, 03:03 PM
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RIP REX
Join Date: Feb 2008
Location: Murfreesboro, TN
Moto: 2008 1125R
Posts: 7,467
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i would check the balance out first, if its off the affects would be magnified by the increased speed, or possibly the bearings in the steering stem could be bad
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