Handlebars
Comments
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Chunkers1980 wrote:None of that makes any sense.
+ Potatoe
If you can't explain it to us properly, we can't help you, though I think you may well be past the helping stage.
Anyyyways... As I suggested before, walk the bike to your local bicycle shop and ask them to a look for you.0 -
It doesnt have to make sense in Rubez world.
It's Rubez world, It's Rubez world,
Where nothing makes sense and logic is unheard,
It's Rubez world, It's Rubez world,
Where insanity is normality and reason is absurd!
Now who's trolling who motherf*cker0 -
Ouija wrote:rubez wrote:So... If you buy a new handlebar and stem, and is doesn't fit your bike, you're screwed?
No. It just means there isn't enough of a GAP between the top of the steerer tube and the upper surface of the stem for the top cap to preload the bearings and stop everything being wobbly. You probably need to sit the stem further up the steerer tube by putting another spacer underneath the stem.
Then install and tighten the top cap until everything stops being wobbly and then line up the handlebars with your wheels and tighten the side bolts on the stem.
You are right!
I tried putting 3 full-sized spacers on (as opposed to 2 big spacers, and one half-size one), fitted it all, and it feels tight and secure... although(!)
Now the top of the steerer seem sunk into the stem too much - to the point where the allen (key) bolt - the top one on the stem is totally above the steerer - so that would be dangerous? - Only the bottom bolt of the stem is actually gripping onto the steerer.
is there 1/4 sized spacers or something that would cure this? (if 2 & 1/2 sized spacers is too few, and 3 full ones looks like too much :shock:
Does that makes sense?0 -
Chop a bit of your steerer off.0
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Chunkers1980 wrote:Chop a bit of your steerer off.
We are talking 1mm here. I assume you are attempting humour.
Ideally I suppose a spacer 3/4 the length of a normal one would do it. Does such a thing exist?0 -
Spacers range from 1mm to lots of mmsI don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
How big are your current spacers, give us an actual figure? you can get 2.5mm spacers easily enough, but saying you need a 3/4 of regular spacer is like asking us to solve the mystery of the universe 3/4 of what measurement?0
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Also now we seem to have gotten to the bottom of what your problem is, what the feck has it go to do with new handlebars?! :shock:0
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I've said it before but I will say it again.
You can explain it to him but you can't understand it for him.
I suspect that Mr Rubez has needs which are very special. Maybe his carer could help him with this?Transition Patrol - viewtopic.php?f=10017&t=130702350 -
I was going by a "full sized" spacer as 10mm... so 30mm (3 spacers) is too much, but 25mm (2 and a half spacers) is too little.
Nukeproof do a 25mm and a 3mm spacer, that combination may work... a 1mm or 2mm spacer may be better. Want the steerer to be properly gripped by the stem.0 -
This is all pointless. Just stick too many on top to get the preload, as long as the bolt reaches. Just means your stem will be the height dictated by the spacer underneath. But like cooldad says, spacers come in 1mm to many mm dimensions and increments of that if you file them or cut them.0
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Chunkers1980 wrote:This is all pointless. Just stick too many on top to get the preload, as long as the bolt reaches. Just means your stem will be the height dictated by the spacer underneath.
Though with 3 10mm spacers, the depth of the top of the steerer is below the top bolt on the stem... is this OK?! Is the bottom bolt gripping, and the SFN ontop enough to keep it stable?0 -
I presume then that you are mounting the stem on top of the spacers? perhaps in order to get the bars higher? The spacers can go on top of the stem as well as under it. This will lower the bars slightly but a higher rise bar will put them back where you want them.0
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Depends on your definition of OK.
It will probably fail, and you will get severely injured, but as long as you post the video on Youtube, millions will be amused at your misfortune.
The SFN is not for holding anything together, just preloading the bearings. Once the stem is tight the topcap can be removed, if you want.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
1.1/8"
Is that the diameter of a steerer?
I see 1.5" options for spacers also... but the Nukeproof stem only comes in 1.1/8"... so I'm guess that's it?0 -
rubez wrote:Ouija wrote:rubez wrote:So... If you buy a new handlebar and stem, and is doesn't fit your bike, you're screwed?
No. It just means there isn't enough of a GAP between the top of the steerer tube and the upper surface of the stem for the top cap to preload the bearings and stop everything being wobbly. You probably need to sit the stem further up the steerer tube by putting another spacer underneath the stem.
Then install and tighten the top cap until everything stops being wobbly and then line up the handlebars with your wheels and tighten the side bolts on the stem.
You are right!
I tried putting 3 full-sized spacers on (as opposed to 2 big spacers, and one half-size one), fitted it all, and it feels tight and secure... although(!)
Now the top of the steerer seem sunk into the stem too much - to the point where the allen (key) bolt - the top one on the stem is totally above the steerer - so that would be dangerous? - Only the bottom bolt of the stem is actually gripping onto the steerer.
is there 1/4 sized spacers or something that would cure this? (if 2 & 1/2 sized spacers is too few, and 3 full ones looks like too much :shock:
Does that makes sense?
If I've understood that correctly you're saying, with however many spacers you have, only about half the stem actually has steerer tube through it?
Like this?
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rubez wrote:Chunkers1980 wrote:This is all pointless. Just stick too many on top to get the preload, as long as the bolt reaches. Just means your stem will be the height dictated by the spacer underneath.
Though with 3 10mm spacers, the depth of the top of the steerer is below the top bolt on the stem... is this OK?! Is the bottom bolt gripping, and the SFN ontop enough to keep it stable?
The Star nut/Top cap/Preload.. However you want to understand it, does NOT hold the stem on or have any structural purpose.. It just puts tension on the bearings.. Once you tighten the stem bolts up the Star nut/Top cap/Whatever is effectively doing nothing0 -
rubez wrote:1.1/8"
Is that the diameter of a steerer?
I see 1.5" options for spacers also... but the Nukeproof stem only comes in 1.1/8"... so I'm guess that's it?
1.5 Is also a steerer tube diameter, but unless your bike is some sort of DH rig I very much doubt your steerer is 1.5 and will therefor be either 1.1/8 or 1.5 - 1.1/8 tapered.. Either way, 1.1/8 is the one you need0 -
Priceless stuff.
But doesn't he need a new stem anyway - as he's farked the threads in his current one?
That's assuming he even has a bike0 -
:shock:rubez wrote:ej2320 wrote:If I've understood that correctly you're saying, with however many spacers you have, only about half the stem actually has steerer tube through it?
Like this?
Yep, exactly like that,
Do you think that's right? Why do you think they bother to put that bolt at the top of the stem0 -
BigAl wrote:
:shock:rubez wrote:ej2320 wrote:If I've understood that correctly you're saying, with however many spacers you have, only about half the stem actually has steerer tube through it?
Like this?
Yep, exactly like that,
Do you think that's right? Why do you think they bother to put that bolt at the top of the stem
I think after 3 pages we've come to the conclusion that's what his is like (but with some spacers in there for good measure)0 -
I'm convinced I've lost a degree of my own knowledge, just by reading this....
Epic!
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rubez wrote:Now the top of the steerer seem sunk into the stem too much - to the point where the allen (key) bolt - the top one on the stem is totally above the steerer - so that would be dangerous? - Only the bottom bolt of the stem is actually gripping onto the steerer.
Jesus Christ.....0 -
Just ordered me some Nukeproof Warhead riser bars and corresponding stem 8)0
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chrisw333 wrote:rubez wrote:Now the top of the steerer seem sunk into the stem too much - to the point where the allen (key) bolt - the top one on the stem is totally above the steerer - so that would be dangerous? - Only the bottom bolt of the stem is actually gripping onto the steerer.
Jesus Christ.....
Gluing some pipe onto the top of the steerer tube will fix everything and have your ride running sweet0 -
Why?0
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Chunkers1980 wrote:Why?
I'm assuming that's in reply to him ordering a new stem and bars..0
