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Old 17.11.2011, 14:36
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Bicycle modification ?

OK so here's the deal.

I have an old racer bike, but the gears keep slipping, so the bike is only really useful on flat ground.

The bike only cost 150chf, so any money spent on it is basically wasted.

Yes, I have taken it for a service, but the gears keep slipping, and was advised that I would need a new chain and sprocket set.......... seems like a stupid amount of money to spend on a cheap bike.

So

I plan to just pull off the derailers, and cables.
Break the chain, and fit it to the most common gear I use

...... hence, a one speed bike that "works" and I have no fear of riding it.



Before I destroy this bike, can I ask?
  • Has anyone done this before?
  • If so, what sort of 'complications' can I expect once my hands are dirty?
  • How would you rate this task, Easy or Difficult?
  • Would you suggest another option?
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  #2  
Old 17.11.2011, 14:41
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Re: Bicycle modification ?

it's not rocket science, just do it!

no complications to be expected.
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Old 17.11.2011, 14:47
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Re: Bicycle modification ?




I see a Pabst Blue Ribbon and Holga camera thread coming...
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Old 17.11.2011, 14:50
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Re: Bicycle modification ?

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it's not rocket science, just do it!

no complications to be expected.
That's what I thought.

But usually when something seems straightforward, it usually isn't.


I started to imagine that I'd need at least one "special tool", or pulling the derailer off, would leave a gap somewhere and I'd need something to fill the space (etc).
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Old 17.11.2011, 14:51
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Re: Bicycle modification ?

make mine a Schlitz
( and as Mud says.... you'll be making a fixie... say goodbye to free'wheeling )

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Old 17.11.2011, 14:55
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Re: Bicycle modification ?

Actually, it sound like you will be keeping the freewheel, so it won't be a fixie, so you won't be a hipster, though it is so off the map you might just become the ultimatehipster. Especially if you remove the brakes .
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Old 17.11.2011, 14:56
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Re: Bicycle modification ?

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make mine a Schlitz

... say goodbye to free'wheeling
It should still free wheel shouldn't it?

I can't see how pulling the rear derailer off would lock the drive?

I don't want a fixie....... those things are downhill disaster.




But thanks for the beer tip....... I did leave that out of the equation in the OP.
It is the corner stone of success for every backyard mechanic.
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Old 17.11.2011, 14:58
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Re: Bicycle modification ?

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Actually, it sound like you will be keeping the freewheel, so it won't be a fixie, so you won't be a hipster, though it is so off the map you might just become the ultimatehipster. Especially if you remove the brakes .
Don't expect me to post next week on how the modifications went.


(from beyond the grave)
"Hey Mud...... it goes REALLY fast downhill"
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Old 17.11.2011, 15:03
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Re: Bicycle modification ?

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Don't expect me to post next week on how the modifications went.


(from beyond the grave)
"Hey Mud...... it goes REALLY fast downhill"
I thought you were Australian?! Sounds like someone has become domesticated .
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Old 17.11.2011, 15:05
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Re: Bicycle modification ?

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That's what I thought.

But usually when something seems straightforward, it usually isn't.


I started to imagine that I'd need at least one "special tool", or pulling the derailer off, would leave a gap somewhere and I'd need something to fill the space (etc).
yeah. if we always worried about the consequences of our actions, we'd never get anything done
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Old 17.11.2011, 15:05
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Re: Bicycle modification ?

Well you will need to shorten the chain for sure so that you can fit it around the gear you want, sometimes you're not able to adjust the tension on the chain as the frame doesn't allow it and that job is delegated to the derailer... it might work depending on the frame...
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Old 17.11.2011, 15:08
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Re: Bicycle modification ?

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I thought you were Australian?! Sounds like someone has become domesticated .

That's tough !!!

I thought I'd modify the bike into two speeds..... stop and go.


not "go" and....

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Old 17.11.2011, 15:11
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Re: Bicycle modification ?

I don't like the way this guy talks but you might find this video helpful.

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Old 17.11.2011, 15:29
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Re: Bicycle modification ?

It seems that getting the chain and the derailers off is a piece of piss.


SHORTENING the chain doesn't look so easy.

What is the easiest and cheapest way to shorten a chain?


(don't just say 'cut it'...... I mean cut it with 'what'?....... tools are limited)

Last edited by TidakApa; 17.11.2011 at 15:30. Reason: .
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Old 17.11.2011, 15:31
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Re: Bicycle modification ?

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It seems that getting the chain and the derailers off is a piece of piss.


SHORTENING the chain doesn't look so easy.

What is the easiest and cheapest way to shorten a chain?


(don't just say 'cut it'...... I mean cut it with 'what'?....... tools are limited)
You need a chain tool. It pushes out/in the pins that hold the links. Check online- lots of cheap ones available.

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Old 17.11.2011, 15:35
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Re: Bicycle modification ?

Check the chain line i.e. make sure the chain is in as straight a line as possible between chain rings and freewheel.

You can use one of these to tension the chain but you would still need to shorten the chain and buying a new chain and sprocket might work out the same price. How much did you get quoted for a new chain and sprocket? If it is an old and cheap bike it really shouldn't cost that much.

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Old 17.11.2011, 15:37
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Re: Bicycle modification ?

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It seems that getting the chain and the derailers off is a piece of piss.


SHORTENING the chain doesn't look so easy.

What is the easiest and cheapest way to shorten a chain?


(don't just say 'cut it'...... I mean cut it with 'what'?....... tools are limited)
Where in Zurich are you? I have a chain tool I can lend you if you want. I could also do it for you, but as we are in Switzerland I would have to charge you Swiss labour rates!
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Old 17.11.2011, 15:39
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Re: Bicycle modification ?

Use a chain breaker, its a special tool designed specifically for this purpose. They are not expensive and look like the one in this video. You remove a number of links and then the tool also rejoins a chain by pushing the link in.



However you would most likely be better to just get a new chain of correct setup since a problem is likely to be that the old chain is worn to the crankset you have used and may complain a lot when you do this.

Personnally if all you want is an easy run about I would buy a cheap second hand bike and throw the old one out.
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Old 17.11.2011, 15:56
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Re: Bicycle modification ?

Yeah, I'm aware that the bike needs a new chain and sprocket.


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and was advised that I would need a new chain and sprocket set.......... seems like a stupid amount of money to spend on a cheap bike.
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buying a new chain and sprocket

....... If it is an old and cheap bike
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Use a chain breaker, its a special tool

However you would most likely be better to just get a new chain of correct setup

Personnally if all you want is an easy run about I would buy a cheap second hand bike and throw the old one out.

Unfortunately,If I bought that, then I wouldn't need to modify the bike.

I guess, what it comes down to, is that this is a complete piece of crap bike, and I'm trying not to spend any money on it.

It's just not worth it.

I realise I will have to part with some coin for a new chain breaker, but TitanTurbo 10, I live in Wipkingen, and would happily shout you an icey cold beer from the Nordbrücke pub afterwards if you could help?... PM me if that suits or not.

Wallabies,
Another bike has been on the cards, and has been the most logical thing to do.
The last 3 bikes I've seen (in the same price bracket), all had the same issues with the gears, so I assume I'm at the bottom of the barrel.


I know this is Switzerland, but I figured THIS I could get away with without spending money
....... a man can dream
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Old 17.11.2011, 18:50
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Re: Bicycle modification ?

New chain and rear sprockets, fitted, in the UK would be about £40. Should be the same in Germany/France. It's worth it to get the bike working properly again.
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