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post #1 of 5 (permalink) Old 05-21-2010, 11:10 AM Thread Starter
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Unhappy bad vibration in driveline

Hi Everyone, I have just changed out the rear tire on my 07 vstar 1100 and now have a severe vibration after 50 mph, that gets consistantly worse as speed increases. The recommended replacement tire was installed and balanced by a local bike shop that I trust. it is the first tire change on this bike, it only has 10,000 miles on the chassis. There was no vibration with the original tire and I have never experienced any problems with this bike until the tire change. Have I put the drive shaft out of phase some how? It went together easily and nothing was forced into place, any recommendations?
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post #2 of 5 (permalink) Old 05-21-2010, 01:00 PM
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Well if all you did was change the tire, the fault lies there. You might have lost a weight, or not balanced well. Another cause could be a defective tire. I had a tire cord/belt go bad on a car tire once and it felt like it was out of balance. The defective belt lets the tire stretch and become out of round.

GW
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post #3 of 5 (permalink) Old 05-21-2010, 08:09 PM
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Balance

Stevo,

Fulltilt is probably right, but can you jack up the bike and turn the wheel watching for something out of round? Drive shaft, tire, etc.

Dave
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post #4 of 5 (permalink) Old 05-21-2010, 08:16 PM
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Thats a great idea just barely get the tire off the ground. then slowly rotate the tire while watching the clearance.

GW
2005 1100 Custom
Speedster Slashdowns
ORKed 5/16" Lines
PODs K&N RU-600s W/PCV
PCS XXX/2 cams
Jetted & PMS Tweaked 20.0/152.5 3.0 turns
AIS Removed/Plugged
Wimmer Machine Custom Oil Cooler & Stash Tube
Pro-1 Tach
Dyna 3000 Step 5/ 6500 redline
TPS Connected
6" Fwd Control Extension W/Boards F&R
Memphis Shades Bullet Fairing
Progressive 465 rear
Progressive Springs and GVE front

10,000 Monkeys throwing crap at the glass and this one thinks he's Picasso...
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post #5 of 5 (permalink) Old 05-23-2010, 12:00 AM
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I agree with the others sounds like a bad balance job, or bad tire. You might feel an out of round tire riding on a smoth road very slow. less that 15mph.

Doug

Live to Ride, Ride to Live, Work to support Life
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