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[Closed] AAAARRGHHHH I'M SO STUPID

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[#9505376]

Last night I unlaced a fixed gear wheel without removing the track cog first. Now I'm going to have to rebuild it just so I can get the bloody thing off.


 
Posted : 21/08/2017 9:49 am
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I fitted bearings on both sides of my hub, without the axle in place.


 
Posted : 21/08/2017 10:47 am
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you've not got any molgrips then? ๐Ÿ˜€


 
Posted : 21/08/2017 11:02 am
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Ha - thanks, that does make me feel slightly better.

you've not got any molgrips then?

Damned if I'm using molgrips on a Suzue Promax NJS hub....


 
Posted : 21/08/2017 11:04 am
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Molgrips will be disappointed to hear you say that. He's a resourceful chap you know, just a poor quality judge of cars.


 
Posted : 21/08/2017 11:05 am
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๐Ÿ™‚

You could try making a shaft gripper out of two thick pieces of wood. To open up the air cartridge in my forks, I found a flat drill thingy that was slightly too large, drilled a hole in a piece of oak flooring then sawed it in half. Then used inner tube to pad the hole out to the required thickness, clamped the air cartridge in a vice and it held it a treat.

Worth a try, doesn't take long.


 
Posted : 21/08/2017 11:24 am
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Aaarrgh!!


 
Posted : 21/08/2017 11:25 am
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You could try making a shaft gripper out of two thick pieces of wood. To open up the air cartridge in my forks, I found a flat drill thingy that was slightly too large, drilled a hole in a piece of oak flooring then sawed it in half. Then used inner tube to pad the hole out to the required thickness, clamped the air cartridge in a vice and it held it a treat.

Worth a try, doesn't take long.

Thanks, I'll give that a go before I start relacing. Innertube is a good idea


 
Posted : 21/08/2017 11:31 am
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You could try making a shaft gripper out of two thick pieces of wood. To open up the air cartridge in my forks, I found a flat drill thingy that was slightly too large, drilled a hole in a piece of oak flooring then sawed it in half. Then used inner tube to pad the hole out to the required thickness, clamped the air cartridge in a vice and it held it a treat.

Worth a try, doesn't take long.

I would guess not worth a try, not a chance in hell that will manage to resist the torque you'll need to get the cog off.

You don't need to fully relace the wheel of course, especially if you can hold the lockring tool/sprocket in a vice whilst you rotate the rim (which you'll probably need to do with the sprocket anyway). Half the spokes would certainly do the job (as only half the spokes take torque in either direction anyway)


 
Posted : 21/08/2017 11:31 am
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Oi, Northwind, come make the OP feel better!


 
Posted : 21/08/2017 11:47 am
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What about using an oil filter wrench?


 
Posted : 21/08/2017 12:14 pm
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I would guess not worth a try, not a chance in hell that will manage to resist the torque you'll need to get the cog off.

How tightly are lockrings screwed on?


 
Posted : 21/08/2017 12:22 pm
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tomhoward - Member
Oi, Northwind, come make the OP feel better!

๐Ÿ˜†


 
Posted : 21/08/2017 12:28 pm
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tomhoward - Member
Oi, Northwind, come make the OP feel better!

Stand back i'll handlethis.

[img] [/img]

I've done that. You dont needto fully lace it.

I cant acrualky remember what i did.

Possibly i used lits of fairly long thib nails through some scrap ply. Tapped the nails bent to lock them.

Chain whipped


 
Posted : 21/08/2017 12:28 pm
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How tightly are lockrings screwed on?

Lockrings are easy to get off. It'll be the cog that is properly tight.


 
Posted : 21/08/2017 12:29 pm
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and everyone's favourite, which is back on the TV again

[img] [/img]


 
Posted : 21/08/2017 12:35 pm
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Ooop double post


 
Posted : 21/08/2017 12:41 pm
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HA! The forks on upside down is a good one.

I got the lockring off nay bother but as simondbarnes says, it's the cog that isn't shifting.

I did consider nailing the hub to a big plank of wood through the spoke holes - maybe worth a go before rebuilding...?

What did Northwind do?


 
Posted : 21/08/2017 1:43 pm
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That's northwinds bike/handiwork (the upside down fork one, not the wonky cranked one)


 
Posted : 21/08/2017 1:44 pm
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I did consider nailing the hub to a big plank of wood through the spoke holes - maybe worth a go before rebuilding...?

I'm sure i did it.


 
Posted : 21/08/2017 1:53 pm
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I read somewhere that a 2p was very useful as a bearing drift in a hope pro 2 freehub. You simply pop the 2p in the end of the freehub and use a cassette lockring to push it (and therefore the new bearing sat behind it) neatly and evenly into place.

Lovely.

The site didn't mention, however, than once you've tightened the lockring on like billy-o, unless you were [s]awake[/s] clever enough to pop the cassette itself on at the same time you're going to have a whole world of pain trying to get the stupid lockring back off. After much muttering at 2 or 3am on the morning of a day earmarked for riding myself and my brother finally managed to get it free; he held a rag round the freehub and tugged on a breaker bar connected to the lockring spanner whilst I gripped the freehub with a set of molegrips. Being typically cyclist shaped, my arms/chest weren't up to the task, but it worked just fine when I gripped the molegrips between my thighs ๐Ÿ˜†


 
Posted : 21/08/2017 1:57 pm