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Universal eccentric bottom bracket


Hairy
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How does it wurk?

There is a SS in the classifieds with one and a conventional dropout.

How does it tension the chain?

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clever stuff...... but surely it can only work until you have adjusted it to max? (but by then your chain would be lekker stretched)

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Me too.

Would mean a clean and simple SS conversion to any HT frame.

 

Anyone tried this ...........


  1. "Ghost" or "Phantom" Chainring

    Simple and effective. Do you have old
    laying around? It may take some experimentation, but you'll likely find a setup that
    for you. Larger chainrings and/or moving the ghost chainring closer to the rear
    /
    will give you more tension. The main thing to watch for with this setup is chainstay clearance with the ghost chainring. Chainring bolt spacers (~2.5mm - 3mm) can be added up front to move the chainline inboard a little for additional clearance. The setup shown uses a 32T drive chainring, 32T ghost chainring, and 18T BMX
    .

     

    NOTE:
    The ghost chainring does
    not
    need to be the same size as the drive chainring.

     

    Another benefit to this system is that you should be able to run
    with this setup, whereas you can't with spring-loaded chain tensioners.

     

    http://www.mtbr.com/channels/mtbreview/images/ssfaq/ghostChainring.jpg

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clever stuff...... but surely it can only work until you have adjusted it to max? (but by then your chain would be lekker stretched)

 

Then you remove a link and swing the BB a bit in again.

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Then you remove a link and swing the BB a bit in again.

 

ah, never though of that :thumbup: .... I would have just bought a new chain :unsure:

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clever stuff...... but surely it can only work until you have adjusted it to max? (but by then your chain would be lekker stretched)

Nope. Because it IS clever stuff.

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http://www.forwardcycle.com/

 

I know I want one of these!!!!

 

What I REALLY like is the fact that they have gone for standard bearings, and not some "buy-from-us-only proprietary nonsense like some manufacturers.

 

Very neat. Now we await the $$$$.

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What I REALLY like is the fact that they have gone for standard bearings, and not some "buy-from-us-only proprietary nonsense like some manufacturers.

 

Very neat. Now we await the $$$$.

 

According to the website $182,50 incl shipping if you don't have a Truvativ setup... and they don't have stock.

Edited by Grebel
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