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 Post subject: bushings for rear shock
PostPosted: Thu Apr 11, 2013 8:45 pm 
Old School Grand Master
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Joined: Sun Aug 21, 2011 11:57 pm
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Location: Antwerp, Belgium
Another noob question here.

So I bought this new rear shock (Fox Float CTD Evolution) for my modern (my first full suspension, the original shock was leaking when I bought the NOS frame). the shock comes with a set of bushings that don't fit the bike. The outer diameter fits the shock's eye, but the inner is too big for the axle that mounts it to the frame and linkage. The original bushing fits the axle, but the outer diameter doesn't fit the shock.

For now I have been playing with a piece of copper bent to fit outside the original bushing, and despite measuring properly, I can't get it to work with the calculated 0.5mm thickness. It just won't fit. Currently using 0.3mm, and I notice that there's some play now. I would try copper with a 0.4mm thickness, but don't have that here.

The build is nearing £2K now, so I'm not going to cut corners and ride with a rattling suspension. I'm thinking about having a set of custom bushing made. I know a place where they can turn them at a reasonable price, but I need to supply the material. Thing is, I'm not sure which material to use.
The Fox came with metal ones, the original shock used something plastic, like teflon perhaps. What would be the best option? Or perhaps I should just let them turn a new oversized axle that fits the shock without the need for bushings at all?


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PostPosted: Thu Apr 11, 2013 9:01 pm 
retrobike rider
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Have you tried TF Tuned?


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PostPosted: Thu Apr 11, 2013 9:05 pm 
Gold Trader / rb Rider / Special
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Remember a bush is sacrificial so it doesn't wear the other parts. Best way seems to be the bush and then turned bar (i.e one solid piece rather than 2 side bits).


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PostPosted: Thu Apr 11, 2013 9:11 pm 
Old School Grand Master
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Location: Antwerp, Belgium
misteroo wrote:
Have you tried TF Tuned?


ooooo ! :shock:

Lovely ! How come I never noticed they had all that?

Thanks



I'm so stupid, bending copper strips into shape for hours when I could have just measured the dimensions and ordered a full kit.


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PostPosted: Thu Apr 11, 2013 9:17 pm 
retrobike rider
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8)


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PostPosted: Fri Apr 12, 2013 9:05 am 
Old School Grand Master
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Location: Herts UK
aluminiuim alloy would be ok for this.

you have all the partss to be able to measure the outer diameter to fit the shock, the bush diameter and length and have a pair turned up.

or try: http://www.mojostore.co.uk/acatalog/Fox ... _Kits.html
or
http://www.ebay.co.uk/itm/Fox-Rear-Shoc ... _703wt_761
or
http://activesport.co.uk/shop/category_ ... =cid%3D%26


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PostPosted: Sat Apr 13, 2013 7:09 pm 
Old School Grand Master
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Joined: Sun Aug 21, 2011 11:57 pm
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Location: Antwerp, Belgium
I took all the necessary measurements tonight and ordered a full set at TF Tuned. Slightly more expensive than having them done locally, but at least now I know I'll have the right materials and what not.

Now I just need to get the brake lines shortened and I just might be able to get the Schmolke ready in time for the 98+ BoTM ... if the weather allows me to take pics next week, that is.


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