[RBW] Re: Romulus death shake

[Scott McLain]

I get it on my older AHH.  I believe the larger tires make it a lot less of 
a death shake than old steal roadbikes used to give folks.  Mine is more of 
a comfortable wobble.  It only happens going down hill.  It does not result 
in loss of control in any manner.  I have a Marks rack up front but it 
wasn't loaded.  

On Wednesday, September 1, 2021 at 10:52:59 AM UTC-6 spencer robinson wrote:

> I had a Romulus (57cm) and I currently have a Heron Road….
> Yes under the right conditions both of these bikes would develop a high 
> speed wobble if no hands.
> I was able to solve the problem by keeping at least one hand on the 
> bars…problem solved for me anyway.
> Unless the bike is running for the ditch or the centerline, I would not 
> start bending on the forks. Sheldon’s method does work very well for 
> correcting the front fork alignment but the rom is such a beautiful bike, I 
> would not unless it is really bad. 
>
> On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
> wrote:
>
>> Does anyone else get the frame wobble at high speeds on smooth surfaces 
>> with their Romulus? I only get it if I try to go no hands. And even the 
>> smallest amount of pressure on one of the grips will stop it. 
>
>

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[RBW] Re: Romulus death shake

[spencer robinson]

I had a Romulus (57cm) and I currently have a Heron Road….
Yes under the right conditions both of these bikes would develop a high 
speed wobble if no hands.
I was able to solve the problem by keeping at least one hand on the 
bars…problem solved for me anyway.
Unless the bike is running for the ditch or the centerline, I would not 
start bending on the forks. Sheldon’s method does work very well for 
correcting the front fork alignment but the rom is such a beautiful bike, I 
would not unless it is really bad. 

On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
wrote:

> Does anyone else get the frame wobble at high speeds on smooth surfaces 
> with their Romulus? I only get it if I try to go no hands. And even the 
> smallest amount of pressure on one of the grips will stop it. 

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[RBW] Re: Romulus death shake

[ascpgh]

What tires?

I had it on my unloaded Rambouillet and I got rid of it in the moment with 
the knees on the top tube. A bad plan for such events if only on big 
downhills, requires relenting of muscle groups necessary for keeping shorts 
unsoiled in those exact seconds.

I ditched my whatever-was-my-size-sale-bin-tires-at-REI/Performance and 
went with a high quality Continental model (IDK). Careful tire pressure 
adjustment with focus on each wheel separately snuffed even the hint of 
wobble. Currently and still shimmy free when unloaded using RH Stampede 
Pass ELs. 

I've also come to appreciate the physical event of oscillation and let 
myself move about on the bike more as I ride at varying speeds and degrees 
of steering and maneuvering. The oscillations requires the distribution of 
mass to be steady for a bit before whatever initiation subtly gets the wave 
going. Not if you're moving about. 

Andy Cheatham 
Pittsburgh

On Wednesday, September 1, 2021 at 8:28:26 AM UTC-5 rickur...@gmail.com 
wrote:

> Does anyone else get the frame wobble at high speeds on smooth surfaces 
> with their Romulus? I only get it if I try to go no hands. And even the 
> smallest amount of pressure on one of the grips will stop it. 

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Re: [RBW] Re: Romulus death shake

[Michael Monti]

It could also be that the front fork is out of alignment.  If your front 
wheel is sits to more to one side than the other, lets say to the left, and 
you flip it around so the tread is opposite, and the wheel still sits to 
the left it is your fork that needs to be realigned, if your wheel ends up 
too far to the right when you flip it around, the wheel is likely dished 
(trued out of center) and is still not tracking in line with the rear 
wheel) causing a shimmy.  

I have a protovelo that I had crashed, which the fork ended up, and may 
still be slightly out of alignment.   I was having a major shimmy with no 
hands, dangerous i would say!  Once I identified the problem using the 
wheel flipping technique, I found a solution on Sheldon Brown's website, 
which basically says to lay a towel or piece of cardboard on the ground and 
lay bike on top. With the front wheel removed, hold the the side of the 
fork in your hand that you would like to adjust and brace the opposing fork 
blade with a soft rubber surface, such as your shoe. Pull blade of fork in 
the correcting direction, repeat until wheel sits centered, LOL.  Hey, it 
worked for me, albeit taking all the strength I had and a fair amount of 
patience.

I think some LBS also have a fork alignment tool that will accomplish this 
same task if not feeling up to being a brute.

Best of luck,
MIke 
On Wednesday, September 1, 2021 at 7:45:05 AM UTC-7 Jon Richardson wrote:

> Check the front wheel hub for play and check for wheel hop (out of 
> round).  
>
> On Wed, Sep 1, 2021, 10:23 AM Rick Urbanowski  wrote:
>
>> No, no front rack.
>>
>> Sent from my iPhone
>>
>> On Sep 1, 2021, at 10:04 AM, Ted Durant  wrote:
>>
>> 
>>
>>> On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
 wrote:

> Does anyone else get the frame wobble at high speeds on smooth 
> surfaces with their Romulus? I only get it if I try to go no hands. And 
> even the smallest amount of pressure on one of the grips will stop it. 


>> My Heron road bikes (very similar geometry!) would do a no-hands shimmy 
>> with both a handlebar bag and a saddle bag in use, and only under that 
>> specific circumstance. 
>>
>> Typical shimmy solutions include checking the headset adjustment (which 
>> didn't change anything in my case). 
>>
>> A light touch to the top tube with a knee will also settle the vibrations.
>>
>> Ted Durant
>> Milwaukee, WI USA
>>
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>> .
>>
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Re: [RBW] Re: Romulus death shake

[Jon Richardson]

Check the front wheel hub for play and check for wheel hop (out of round).

On Wed, Sep 1, 2021, 10:23 AM Rick Urbanowski 
wrote:

> No, no front rack.
>
> Sent from my iPhone
>
> On Sep 1, 2021, at 10:04 AM, Ted Durant  wrote:
>
> 
>
>> On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com
>>> wrote:
>>>
 Does anyone else get the frame wobble at high speeds on smooth surfaces
 with their Romulus? I only get it if I try to go no hands. And even the
 smallest amount of pressure on one of the grips will stop it.
>>>
>>>
> My Heron road bikes (very similar geometry!) would do a no-hands shimmy
> with both a handlebar bag and a saddle bag in use, and only under that
> specific circumstance.
>
> Typical shimmy solutions include checking the headset adjustment (which
> didn't change anything in my case).
>
> A light touch to the top tube with a knee will also settle the vibrations.
>
> Ted Durant
> Milwaukee, WI USA
>
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> .
>
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Re: [RBW] Re: Romulus death shake

[Rick Urbanowski]

No, no front rack.

Sent from my iPhone

> On Sep 1, 2021, at 10:04 AM, Ted Durant  wrote:
> 
> 
 On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
 wrote:
 Does anyone else get the frame wobble at high speeds on smooth surfaces 
 with their Romulus? I only get it if I try to go no hands. And even the 
 smallest amount of pressure on one of the grips will stop it. 
> 
> My Heron road bikes (very similar geometry!) would do a no-hands shimmy with 
> both a handlebar bag and a saddle bag in use, and only under that specific 
> circumstance. 
> 
> Typical shimmy solutions include checking the headset adjustment (which 
> didn't change anything in my case). 
> 
> A light touch to the top tube with a knee will also settle the vibrations.
> 
> Ted Durant
> Milwaukee, WI USA
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[RBW] Re: Romulus death shake

[Ted Durant]

> On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
>> wrote:
>>
>>> Does anyone else get the frame wobble at high speeds on smooth surfaces 
>>> with their Romulus? I only get it if I try to go no hands. And even the 
>>> smallest amount of pressure on one of the grips will stop it. 
>>
>>
My Heron road bikes (very similar geometry!) would do a no-hands shimmy 
with both a handlebar bag and a saddle bag in use, and only under that 
specific circumstance. 

Typical shimmy solutions include checking the headset adjustment (which 
didn't change anything in my case). 

A light touch to the top tube with a knee will also settle the vibrations.

Ted Durant
Milwaukee, WI USA

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[RBW] Re: Romulus death shake

[Pat Smith]

Unrelated, but it's the same on my Black Mountain Road+ with any sort of a 
front load. The thing has Mark's rack mounts, low rider mounts, and 3 pack 
mounts on the fork, so you would think it could handle a front load better 
:(

Pat in DC

On Wednesday, September 1, 2021 at 9:42:14 AM UTC-4 Yankeebird wrote:

> Do you have a front rack installed?
>
> On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
> wrote:
>
>> Does anyone else get the frame wobble at high speeds on smooth surfaces 
>> with their Romulus? I only get it if I try to go no hands. And even the 
>> smallest amount of pressure on one of the grips will stop it. 
>
>

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[RBW] Re: Romulus death shake

[Yankeebird]

Do you have a front rack installed?

On Wednesday, September 1, 2021 at 9:28:26 AM UTC-4 rickur...@gmail.com 
wrote:

> Does anyone else get the frame wobble at high speeds on smooth surfaces 
> with their Romulus? I only get it if I try to go no hands. And even the 
> smallest amount of pressure on one of the grips will stop it. 

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