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Diamond Dave
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« on: December 30, 2017, 03:17:19 PM » |
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Has there ever been a time when you are traveling at 110 mph and the front end shakes. What might cause this? Thanks for your help!
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Challenger
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« Reply #1 on: December 30, 2017, 04:29:36 PM » |
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Many variables, Could be loose steering head bearings, Mine was a bad Avon Venom front tire, Got to the point if I took one hand off the bars above 50mph it would start to shake, New tire fixed it, Had three different tires since that and still no shake. YMMV.
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Chrisj CMA
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« Reply #2 on: December 30, 2017, 04:54:01 PM » |
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Has there ever been a time when you are traveling at 110 mph and the front end shakes. What might cause this? Thanks for your help!
Most likely a front tire balance issue. Either done wrong or no longer in hood balance due to many miles of wear |
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Firefighter
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« Reply #3 on: December 30, 2017, 05:05:17 PM » |
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My Interstate starts to wobble at about 80. Depends on the wind and road conditions, I have changed every bearing redone the forks, new rear shocks and been through several sets of tires. I do know not to go faster once the wobble begins, was nearly thrown off once when I tried to see if the wobble would stop at a higher speed.
Had a new out of round Metzler once that would shake the front end at about 70, had to replace that tire.
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2000 Valkyrie Interstate, Black/Red
2006 Honda Sabre 1100
2013 Honda Spirit 750
2002 Honda Rebel 250
1978 Honda 750
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cookiedough
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« Reply #4 on: December 30, 2017, 05:18:19 PM » |
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most likely bad tire or out of balance due to not being new. even a new tire can be bad from factory.
my issue wobbling front tire was slowing down from 40 to 25 mph shaked VIOLENTLY if let go of handlebars would shake handlebars so bad bike would tip over. NEW tire, no more issues, but my old Avon cobra was 6-7 years old and needed replacing since first few years never wobbled/shaked violently.
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bill-jr
Member
Posts: 1034
VRCC # 35094
murfreesboro
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« Reply #5 on: December 30, 2017, 05:34:23 PM » |
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I got a bad shake at or about that speed and it turned out my windshield was loose.....
on a tourer .....
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Ever danced with the devil In the pale moon light ?
99' Black tourer
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John Schmidt
Member
Posts: 15211
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #6 on: December 30, 2017, 06:22:38 PM » |
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Can't remember the last time I found it necessary to go 110mph, which is more like 105 on these bikes. But for all the reasons given, I agree. Plus, if it's an older tire per the date stamp on the sidewall, then it's time for a new one regardless of remaining tread and when it's mounted use a couple ounces of balance beads instead of weights.  |
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #7 on: December 30, 2017, 07:01:45 PM » |
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Has there ever been a time when you are traveling at 110 mph and the front end shakes. What might cause this? Thanks for your help!
Look I know this won't help but you shouldn't be going 110 unless you're on a track. Furthermore a valk is the wrong motorcycle to go those speeds especially one that's old (that's what the front end shake is telling you). Get a Ducati and go to a race track if you need that much speed. Otherwise you'll just end up a grease spot on the road and give cage drivers more reason to hate the rest of us. Just my 1.5 cents. |
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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Jess from VA
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« Reply #8 on: December 30, 2017, 11:01:50 PM » |
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You did not say which valk you have. (which is always very helpful, and often very necessary for a relevant opinion on many questions)
Big fairing bikes, like my interstates, will occasionally develop a shake at high speed (mine have, but it's not a chronic thing). A combination of speed, road bumps/dips, winds (like crosswinds), other vehicles sucking and blowing (since high speeds are almost always on the freeway), and often in a leaning turn. These things can combine to start a slow rocking wobble, and if you stay on the throttle, it can get worse. I have not ridden a tourer/std, but with the big OE shield, I suppose the same thing can happen.
However, in general, the first thing you should look at is always the front tire. But I've had a shake/wobble at high speed with a perfect front tire.
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Bighead
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« Reply #9 on: December 30, 2017, 11:58:41 PM » |
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most likely bad tire or out of balance due to not being new. even a new tire can be bad from factory.
my issue wobbling front tire was slowing down from 40 to 25 mph shaked VIOLENTLY if let go of handlebars would shake handlebars so bad bike would tip over. NEW tire, no more issues, but my old Avon cobra was 6-7 years old and needed replacing since first few years never wobbled/shaked violently.
Low speed or slowing probably he rear tire. Has there ever been a time when you are traveling at 110 mph and the front end shakes. What might cause this? Thanks for your help!
Look I know this won't help but you shouldn't be going 110 unless you're on a track. Furthermore a valk is the wrong motorcycle to go those speeds especially one that's old (that's what the front end shake is telling you). Get a Ducati and go to a race track if you need that much speed. Otherwise you'll just end up a grease spot on the road and give cage drivers more reason to hate the rest of us. Just my 1.5 cents. And Frank why not on this bike? Have had mine at triples many times and prolly will again, nothing wrong with the phat girl at that speed. |
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1997 Bumble Bee
1999 Interstate (sold)
2016 Wing
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MarcusS
Member
Posts: 311
New To Me August 2013
North Houston
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« Reply #10 on: December 31, 2017, 04:00:09 AM » |
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Vortex shedding like the flutter of a flag in the wind will shake the bike. I found that the tires and ride height all have an affect. Oversize windshields on IS can increase the affect. my bike had a 97 mph wobble that went away when I changed the windshield. The loosness of the rear swing arm and the front forks all add up to a suspension that can flex. I generally do not go much over 115 but the motor likes it.
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Life goes on whether you are in it for the ride or not.
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Gavin_Sons
Member
Posts: 7109
VRCC# 32796
columbus indiana
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« Reply #11 on: December 31, 2017, 06:02:03 AM » |
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Also check your risers. I had a loose one and noticed it at slow maneuvers in a parkinglot and at high speed. Nothing in between. High speed was on the interstate finally found the loose riser on accident when I took the bars off to re torque the head bearing
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rocketray
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« Reply #12 on: December 31, 2017, 12:31:41 PM » |
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on my wife's VTX 1300r it got a head shake but new head bearings fixed it..I had a Suzuki 1150ES that would get a serious headshake at 125.. a Targa lower fairing fixed that--some bar end weights helped too
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..
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« Reply #13 on: January 01, 2018, 06:10:28 AM » |
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Having unbalanced weight in saddlebags?
Do you have a flag pole mounted on one side of the bike?
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Chrisj CMA
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« Reply #14 on: January 03, 2018, 07:26:08 AM » |
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Has there ever been a time when you are traveling at 110 mph and the front end shakes. What might cause this? Thanks for your help!
No, mine doesn’t start that until 160-170mph |
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hubcapsc
Member
Posts: 16779
upstate
South Carolina
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« Reply #15 on: January 03, 2018, 07:41:05 AM » |
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My Interstate starts to wobble at about 80. Depends on the wind and road conditions, I have changed every bearing redone the forks, new rear shocks and been through several sets of tires. I do know not to go faster once the wobble begins, was nearly thrown off once when I tried to see if the wobble would stop at a higher speed.
Had a new out of round Metzler once that would shake the front end at about 70, had to replace that tire.
That's wrong... did you also change out the swingarm bearing? Hope you can find the problem... -Mike |
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