Steering Column Flex: would a taller SCS help at all?

After getting everything in line and compressed properly, I find that the steering column "flexes." It doesn't wobble back and forth, it doesn't shift backward/forward when you push and pull on it, but the bars "bend" with pressure, always returning back . It's not a loose feeling at all, the whole column is flexing like a skyscraper in the wind. Would a taller clamp clamping a greater portion of the ends of the fork and bars help correct this to any degree?

(this post has been edited from my original inquiry about oversized bars correcting the flex)
 
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Bror Svensson

Gold Member
After getting everything in line and compressed properly, I find that the steering column "flexes." It doesn't wobble back and forth, it doesn't shift backward/forward when you push and pull on it, but the bars "bend" with pressure, always returning back . It's not a loose feeling at all, the whole column is flexing like a skyscraper in the wind. Would beefier bars with a wider diameter help correct this?
how tall are they?
 

TomK

Super Moderator
Staff member
With bars that tall you are going to have flex regardless of the diameter. You are applying a lot of torque when your bars are basically 28" tall. if you want less flex then you are gonna need to make bars with a thicker wall. I would just get used it if I were you. Every scooter part flexes, watch some clips in slow motion, and you will definitely see a ton of flex in your bars and deck.
 
Alright, I understand completely. Then on a related note, do you find that a full size SCS keeps tighter and gives a little less flex than a baby sized scs? I've ridden but never owned a full size, and would think that more clamping contact would do a better job than less, regardless of Tilt's 6mm bolts.

Full size 4 inch PROTO vs the 3 inch (6mm bolt) TILT?
 

GraysonD!!

Silver Member
Alright, I understand completely. Then on a related note, do you find that a full size SCS keeps tighter and gives a little less flex than a baby sized scs? I've ridden but never owned a full size, and would think that more clamping contact would do a better job than less, regardless of Tilt's 6mm bolts.

Full size 4 inch PROTO vs the 3 inch (6mm bolt) TILT?
It's not about how big your clamp is it's just about the leverage on your bars are I mean it might help but there's no point flex is flex everything is gonna flex
 
But more clamp clamping more metal would likely mean more leverage amirite? Much like how you think it'd be even worse with a 2 inch scs (if it were even possible without changing the size of the bolts)
 
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TomK

Super Moderator
Staff member
But more clamp clamping more metal would likely mean more leverage amirite?

You get .5" extra of clamp on your bars. When your bars are already over 27 high, that is going to do almost nothing. Also, I do not think you know what leverage is. If you want your bars to flex less, you want less leverage, so shorter bars. Leverage has nothing to do with how much metal there is.
 
Yeah, not the word I wanted to use in regard to the clamp. I was thinking of leverage as "influence over" not its more scientific meaning. I understand that the bars act like a lever on the rest of the column meaning that the longer it is, the easier it's going to be to flex it. It's like trying to break a pencil in half that's only 3 inches long versus one that is 6 inches long. The 6 inch one isn't going to be as rigid, will flex, and you'll have an easier time snapping it (not saying the bars are snapping, just making a quick example that the pencil will flex a lot easier.) Or like how like using a jack with a very short lever is going to be much harder to pump down to use. It's also somewhat of the same idea as gaining more power from a hammer by holding it at the bottom and using its overall length. I just thought that maybe instead of looking at it as an extra .5 inches, I should really be looking at it as 33 percent more clamp, but perhaps I really would need a few extra inches at that point, i.e. something not practical. This makes sense, but I wanted to be sure because like I said, you'd think a clamp that's even shorter than 3 inches wouldn't be clamping to enough of the fork and bars because it's only holding on to the very ends, and being that they were the very ends, (like holding the pencil when trying to bend it) would cause more flex as less material is anchored down - like wide bars without gussets vs wide bars with (even small) gussets on the inner end.

(Bold to clarify this is the biggest factor in what I'm basing the thread off of)
 
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GraysonD!!

Silver Member
Yeah, not the word I wanted to use in regard to the clamp. I was thinking of leverage as "influence over" not its more scientific meaning. I understand that the bars act like a lever on the rest of the column meaning that the longer it is, the easier it's going to be to flex it. It's like trying to break a pencil in half that's only 3 inches long versus one that is 6 inches long. The 6 inch one isn't going to be as rigid, will flex, and you'll have an easier time snapping it (not saying the bars are snapping, just making a quick example that the pencil will flex a lot easier.) Or like how like using a jack with a very short lever is going to be much harder to pump down to use. It's also somewhat of the same idea as gaining more power from a hammer by holding it at the bottom and using its overall length. I just thought that maybe instead of looking at it as an extra .5 inches, I should really be looking at it as 33 percent more clamp, but perhaps I really would need a few extra inches at that point, i.e. something not practical. This makes sense, but I wanted to be sure because like I said, you'd think a clamp that's even shorter than 3 inches wouldn't be clamping to enough of the fork and bars because it's only holding on to the very ends, and being that they were the very ends, (like holding the pencil when trying to bend it) would cause more flex as less material is anchored down - like wide bars without gussets vs wide bars with (even small) gussets on the inner end.

(Bold to clarify this is the biggest factor in what I'm basing the thread off of)
Just stop I'm not being rude but it won't help. How old are you?
 

Chrispy

Silver Member
mattthom makes me is gonna be correct more often than not because he has been in the game since 2008 or longer. But in regards to the tilt or proto i would say go for the tilt because the extra inch is equivalent to the bigger clamping bolt in the tilt. So personally i would rather have 3 inches or my fork more thoroughly clamped than 4 inches a bit less clamped. I'm just making shit up that I know little about but this time I think i might be on to something.


also when you say it won't help is bullshit sorry. Every single peice of extra clamp will help keep things good in the hood
 

GraysonD!!

Silver Member
mattthom makes me is gonna be correct more often than not because he has been in the game since 2008 or longer. But in regards to the tilt or proto i would say go for the tilt because the extra inch is equivalent to the bigger clamping bolt in the tilt. So personally i would rather have 3 inches or my fork more thoroughly clamped than 4 inches a bit less clamped. I'm just making shit up that I know little about but this time I think i might be on to something.


also when you say it won't help is bullshit sorry. Every single peice of extra clamp will help keep things good in the hood
STFU kid. Your trying to be too cool if you don't know it then don't post it your trying to get everyone to like you who cares if people don't like you. And if he's gonna automatically be correct then why did he ask this question. Just think for a second.
 

Chrispy

Silver Member
STFU kid. Your trying to be too cool if you don't know it then don't post it your trying to get everyone to like you who cares if people don't like you. And if he's gonna automatically be correct then why did he ask this question. Just think for a second.
haha i'm trying to be helpful. Its the internet aswell so I'm not too concerned about being cool. I just noticed that he was a smart dude from his previous post so maybe his answer to his own question was right who knows? Its all good though
 
Just stop I'm not being rude but it won't help. How old are you?

Older than your mom. Spitting ideas back and forth is how discussions work and a better understanding is reached.

hmm mine are 27 tall (in scs of course) i see no flexing tho

Hmm, would ya look at that, even more input! Not even the slightest bit? What SCS do you use?

mattthom makes me is gonna be correct more often than not because he has been in the game since 2008 or longer.

While being around awhile helps a bit, it isn't relevant right now. Like Grayson said, I AM asking the question only while sharing my own input. It doesn't make me more right than someone who hasn't been around as long who truly knows the right answer. Just a friendly reminder.
 
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GraysonD!!

Silver Member
Older than your mom. Spitting ideas back and forth is how discussions work and a better understanding is reached.



Hmm, would ya look at that, even more input! Not even the slightest bit? What SCS do you use?
Dayum so your 80yrs old wow. Chill the hell out bro he runs a tilt scs I have 27high and have massive wobble but I'm telling you it's from how much leverage your bars have.
 
Dayum so your 80yrs old wow. Chill the hell out bro he runs a tilt scs I have 27high and have massive wobble but I'm telling you it's from how much leverage your bars have.

If you'd like to reiterate yourself, try rewording your post or being more descriptive with your explanation. Tell me why you don't agree with my new post (that's better explained) since I wasn't very explicative with my own thoughts the first time. Please don't ask my age, it has nothing to do with the question. You realize I don't disagree with either of you, right? I just want to gain more information IF possible while sharing my own thoughts and understanding in hopes of gaining even more of an understanding. Interpret it as you will.
 

Chrispy

Silver Member
Yo grayson are your bars 27 including or not including scs?
m.thom i guess that maybe right now the best person to ask would be matt thom himself lol
 
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