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Low Speed Wobble


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#1 Leeworthy

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Posted 03 September 2008 - 08:36 AM

So this morning on my way to work, my sleeve on my jacket started coming up. So i let go of the bars and tried to zip it back up. When I looked back down, I noticed my bars wobbling back and forth. Excessivly. I was only doing about 60km/h when it was happening so not bad, but still. What causes this? I was heading down a hill, and letting the bike brake itself with the engine. Any ideas? As soon as I grabbed the bars again it stopped.

#2 crepitus

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Posted 03 September 2008 - 08:43 AM

So this morning on my way to work, my sleeve on my jacket started coming up. So i let go of the bars and tried to zip it back up. When I looked back down, I noticed my bars wobbling back and forth. Excessivly. I was only doing about 60km/h when it was happening so not bad, but still. What causes this? I was heading down a hill, and letting the bike brake itself with the engine. Any ideas? As soon as I grabbed the bars again it stopped.


Is your front tire the factory size or have you changed it? Have you raised the rear ride height or lowered the front height? How high is the preload on your rear shock? Has the bike been down before?

#3 Leeworthy

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Posted 03 September 2008 - 08:45 AM

Everything is stock. Rear Preload is around 7Psi, Front is stock. Wheels are both stock sizes.

It has never happened before,. Maybe just chalk it up to road conditions?

#4 crepitus

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Posted 03 September 2008 - 08:52 AM

Everything is stock. Rear Preload is around 7Psi, Front is stock. Wheels are both stock sizes.

It has never happened before,. Maybe just chalk it up to road conditions?


All previous questions were related to possible excessive loading of the front and shortened rake/trail. Make sure the forks are straight. Simple answer is, if it becomes recurring you can put a steering damper on it.

#5 skuuter

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Posted 03 September 2008 - 08:52 AM

Possible front tire cupping also................ :mellow:

#6 crepitus

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Posted 03 September 2008 - 08:54 AM

Possible front tire cupping also................ :mellow:


what he said...check your tire pressure

#7 Leeworthy

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Posted 03 September 2008 - 08:57 AM

Okay cool.

i didnt know you could get steering dampers for my model and year. 83 VF750

#8 crepitus

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Posted 03 September 2008 - 09:05 AM

Okay cool.

i didnt know you could get steering dampers for my model and year. 83 VF750


Not specifically, afaik, but you could fit one with relatively minimal effort.

#9 gradus

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Posted 03 September 2008 - 09:17 AM

If you're on stock tires with around 5k miles, it's the tire cupping.

#10 Leeworthy

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Posted 03 September 2008 - 09:19 AM

Stock sized tires. not stock tires.. Bike has 63000km on it... Im running BT45's




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