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[Closed] zero cost old elastomer fork revival ?

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[#833938]

Hi,

living in the dusty Alentejo, southern Portugal, on a budget that leaves precious little to spare for the bikes I'd like to have, I recently took over the care of a friend's semi-abandoned 1997 Voodoo Erzulie. Lovely bike actually, great geometry, perfect fit, but rusty cheapo components and a fork that resembles riding a piece of wet string. While I raise the cash to build my next dream bike, this one does perfectly well - except for that fork, Suntour MG90, looks like it was never a great fork, but since the elastomers have turned to bread over the years, it needs something to make it bearable.

Any ideas on zero-cost elastomer replacements ??? Really, it's against my principles to throw away more than a couple of Euros here in the knowledge that at best it was a cheap fork in its heyday, and that's long past...
It's a spring/elastomer fork, looks like the missing parts were originally four 30mm lengths of 19mm diameter elastomer. I dropped in a few random springs from the parts box, but can't say I was very impressed with the result. Any ideas for an improvement ?

Looking forward to finding a similar frame I can call my own and start to build up... anyone selling a 19.5 inch voodoo (cheap) ?


 
Posted : 02/09/2009 4:30 pm
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if your very carefull you can warm them up in the microwave to revive the elastometer.


 
Posted : 02/09/2009 4:48 pm
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Well replacing them with springs is unlikely to give a good result as there's no damping for them. If I remember rightly, elastomers have their own damping characteristics.


 
Posted : 02/09/2009 5:22 pm
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I used the variable rate valve springs from a motorbike for a similar project. Very nice, but no damping.


 
Posted : 03/09/2009 12:27 am
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Thanks guys ! That point about the elastomers having damping characteristcs makes sense. Now I understand the whole thing...


 
Posted : 04/09/2009 8:24 am
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Why not splash out a few quid on some cheap more modern forks?


 
Posted : 04/09/2009 8:35 am
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how about filling the fork legs with builder's expanding foam? It'll stop them working and you'll have cheapaschips rigid forks.


 
Posted : 04/09/2009 8:39 am
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Hi ridelikethewind off topic I know,Im off to my brother in laws place in Burgau at the end of the month. could you suggest any good riding, I've done the big lake circuit anything else?


 
Posted : 04/09/2009 9:10 am