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Freewheels And Cranks


ruption0

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hi i have just had my freewheel replaced but it was a real pain to get off, as well as my friend is changing his onza t bird so it has a front freewheel instead of a set crank but we cant get it off. Has anyone had a really hard time to get off there crank or freewheels?

Edited by ruption0
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yeah i had problems getting mine off but then again so does everyone due to when riding they just tighten up so much and are really hard to get off. when i got my try-all freewheel at christmas it ment me getting my acs claws off and it was really hard, but all i did was put crank arm in a vice and just hit it as hard as i could with a hammer and chisel and eventually it just spun off. also i have recently got some echo cnc cranks so this ment me getting my try-all freewheel off this time but with this freewheel you get a tool with it so it was fairly easy and i didn't damage it like i did the acs.

cheers lou.

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I spent ages trying to get my f/w off, but in the end I finally found a good technique (well, it worked for me)

- Lock the f/w tool in the vice

- Put a cloth around the crank

- Put the f/w on top of the tool

- Get someone to stand on the crank (on top of vice)

- Try to find a long scaffolding pole to fit on crank which will increase leverage

- And then just either push or pull.

I was told this technique by my dad's mate who is a bike mechanic so there may be a good chance of it working!

Good luck!

Alex.

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Put aq load of head on it...

hand held gas flame, leave it on it for about 3 - 5 mins, and it'll knowck off easily :)

if we're talking about the same things here ;)

Have to be carefull with the flame though. Only want to heat up the freewheel, not the crank inside it. Otherwise it'll just get stuck on even more. As aluminium expands more under temprature than steel.

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Does your Friend on his T-bird have a cassette hub on the rear??

If he does then he should not really put a front freewheel on as well since he will get less engagements which would mean it would be more likely to not have the power when you need it.

I.E. on a tensile the engagement is every 5 degrees, this is when the wheel moves by pedaling so if he runs a cassette hub as well as a front freewheel it will be a lot less reliable.

The set up would still work though.

Jack.

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