Rapid Descent Scotland

[Stumpjumper1990]

Does anybody knows if there is another company that sells COR spring upgrades for Proflex bikes like RDS used to do?

I know about suspensionforkparts.net, but am looking for springs.....

[orange]

as I mentioned over on retrobike, I'm not aware of any but happy to be proved wrong...

[Stumpjumper1990]

as I mentioned over on retrobike, I'm not aware of any but happy to be proved wrong...

Yeah! Thanks for that! 

Doesn't anybody has som spare RDS coil springs for me?? 

[kiwi]

as I mentioned over on retrobike, I'm not aware of any but happy to be proved wrong...

Yeah! Thanks for that! 

Doesn't anybody has som spare RDS coil springs for me?? 

if you know what you want it is relatively cheap to get a spring wound,its a very well known art.

[Stumpjumper1990]

as I mentioned over on retrobike, I'm not aware of any but happy to be proved wrong...

Yeah! Thanks for that! 

Doesn't anybody has som spare RDS coil springs for me?? 

if you know what you want it is relatively cheap to get a spring wound,its a very well known art.

you are right, but those end caps and the extra elastomer are more difficult to make/find! 

[w2zero]

The end caps for the ODS shocks can be turned out to accomodate a longer spring.

[kiwi]

the trick is to make a top hat arrangement to accept a longer(normal spring)
The top hat and spring come back partly over the preload adjuster
thats what the original spring kit did i think.I look for pics

****just like the COR kit*****

[w2zero]

Which is what I did by turning out the center of the upper hat for the ODS/elastomer setup and replacing the elastomer with a coil spring.  That allows a greater choice of springs since the COR spring is a larger diameter to clear the spring cup from RDS.  I have thought about machining some COR type hats as well when I run out of the dark anodized Proflex ones. 

Coil spring manufacturers are all over the place, just a matter of looking at their inventory and finding your spring.  ID, OD, uncompressed length, flattened ends, wire diameter, metallurgy and number of coils as well as your desired spring rate. 

I have been checking rates  by using a small shipping scale (bath size) on the deck of my drill press and then setting the depth gauge on the quill to zero on contact with the spring and then reading the scale @ 1".     The spring rates printed on some of the springs isn't even close!  A 25# difference isn't too bad but there are some I have tested that were close to 100# off.

One and a half times body weight for the rear spring and body weight for the front spring works for me on the 855/856 frames and forks.

[kiwi]

Which is what I did by turning out the center of the upper hat for the ODS/elastomer setup and replacing the elastomer with a coil spring.  That allows a greater choice of springs since the COR spring is a larger diameter to clear the spring cup from RDS.  I have thought about machining some COR type hats as well when I run out of the dark anodized Proflex ones. 

Coil spring manufacturers are all over the place, just a matter of looking at their inventory and finding your spring.  ID, OD, uncompressed length, flattened ends, wire diameter, metallurgy and number of coils as well as your desired spring rate. 

I have been checking rates  by using a small shipping scale (bath size) on the deck of my drill press and then setting the depth gauge on the quill to zero on contact with the spring and then reading the scale @ 1".     The spring rates printed on some of the springs isn't even close!  A 25# difference isn't too bad but there are some I have tested that were close to 100# off.

One and a half times body weight for the rear spring and body weight for the front spring works for me on the 855/856 frames and forks.

you onto it.I think the top hat arrangemnt is required if you use a spring that will firt a nolleen??Are they longer than a cor?

[w2zero]

Yes the Noleen springs are longer (I think) so I'll see about wandering out to the shop tomorrow and measuring.  I have several different manufacturers springs on my Pfx's in different configurations.  I'll post info then.

[kiwi]

Yes the Noleen springs are longer (I think) so I'll see about wandering out to the shop tomorrow and measuring.  I have several different manufacturers springs on my Pfx's in different configurations.  I'll post info then.

i will dig through my spare parts box i think i have a couple noleens in there.
pause
nb2 300 o/all 95mm od 45mm id35mm

[Stumpjumper1990]

i will dig through my spare parts box i think i have a couple noleens in there.
pause
nb2 300 o/all 95mm od 45mm id35mm

Thanks for the info and pics. I found a supplier who can make a spring to my liking. This can help!

[Spokes]

kiwi, is it a help that your springs are 10* N/E or is that just a Newzealand thing  .

If you can contact Callum of ex RDS, when he shut up shop he had a box of COR end caps left over but no springs. He was trying to sell the whole box if someone else wanted to find their own spring suppier. He would probably still sell the caps but contacting him will be the challenge.

Chris

[Stumpjumper1990]

If you can contact Callum of ex RDS, when he shut up shop he had a box of COR end caps left over but no springs. He was trying to sell the whole box if someone else wanted to find their own spring suppier. He would probably still sell the caps but contacting him will be the challenge.

Chris

Just contacted him and he might have some end caps and perhaps some springs! 

[Spokes]

Well done that was quick!
Callum is very helpfull and I suspect he still has a few things stashed away 

Chris