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Avalanche......

Rik

Turbo Monkey
Nov 6, 2001
1,085
1
Sydney, Australia
DßR said:
Cannondale Gemini DH -- 2.3:1 ratio, singlepivot. Good
Speaking of which... how would a Gemini FR go with an Avalanche shock? Is the rate a rising leverage design... which I'm told is optimum for the Avalanche to show its stuff?
 

DßR

They saw my bloomers
Feb 17, 2004
980
0
the DC
Gemini travel is 7"; I believe the FR version is 2.25" stroke and the DH is 3" stroke -- I'm no gemini expert so feel free to correct me. Neither one is a rising rate.
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
seismic said:
Is there enough space to squize a Ti spring in under the Army seat tower ? It even looks tight with the steel spring.

did that last night

required some minor dremeling of the upper linkage plate

clearance with the seat tower is about 1mm per side....

550lbs * 3.0" i got on ebay for usd50 :p
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
Extrovert said:
So basicly any bike with linkages or multi pivots to an extent?? VPP ??

no



the v10 has a pretty high leverage ratio at 3,63


the gemini dh has no linkage but leverage ratio is sub-3 so there you go, its not linkage related.
 

ohio

The Fresno Kid
Nov 26, 2001
6,649
26
SF, CA
Just to give you an idea of how low the leverage ratio is on a Gemini DH, I am currently running a 250# spring and the bike is oversprung and overdamped for my 165 lbs. I would run a lighter spring if anyone made one. Extrapolating that out you get a less-than 500# spring for someone that weighs 330 lbs. That's pretty damn good.

To keep things nice and simple, look for bikes that come with a 3" or 2.75" stroke shock, and 8" or less of travel. Regardless of what kind of linkages and rates they have, this should keep you in the right ballpark.
 

DLo

Monkey
Feb 26, 2003
688
0
South Bay Area, CA
ohio said:
Just to give you an idea of how low the leverage ratio is on a Gemini DH, I am currently running a 250# spring and the bike is oversprung and overdamped for my 165 lbs. I would run a lighter spring if anyone made one. Extrapolating that out you get a less-than 500# spring for someone that weighs 330 lbs. That's pretty damn good.

To keep things nice and simple, look for bikes that come with a 3" or 2.75" stroke shock, and 8" or less of travel. Regardless of what kind of linkages and rates they have, this should keep you in the right ballpark.
Strange! My friend rides a Gemini and he wanted my 650 pound spring for his Fox. He's about the same weight as you I think, maybe a little more. Says it feels alot better now. Maybe just different riding style? :confused:
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
DLo said:
Strange! My friend rides a Gemini and he wanted my 650 pound spring for his Fox. He's about the same weight as you I think, maybe a little more. Says it feels alot better now. Maybe just different riding style? :confused:

dlo, ohio is referring to the gemini dh which comes stock with the wife-swapper shock.

remember the swingers can be thought about as air-assisted when it comes to spring rate so with a fox youd run a heavier spring rate, say if he has a 250 on the swinger then he`d probably use a 350 with a fox RC.

hm come to think of it, that still doesnt make sense, either your friend is 300lbs-ish or he is using the other gemini frame, that one comes with a 2,25" (instead of 3") stroke shock and has more leverage.
 

Rik

Turbo Monkey
Nov 6, 2001
1,085
1
Sydney, Australia
That's pretty darn low.
But... is it a rising or falling rate? I should know more about it all but I don't... but people say Avalanche is good for bikes that have a progressive leverage ratio, where as SPV is good for bikes that are digressive? True? BS? Am I lost? (yes, and that's all I know right now).
 

Toshi

butthole powerwashing evangelist
Oct 23, 2001
40,241
9,123
Rik said:
That's pretty darn low.
But... is it a rising or falling rate? I should know more about it all but I don't... but people say Avalanche is good for bikes that have a progressive leverage ratio, where as SPV is good for bikes that are digressive? True? BS? Am I lost? (yes, and that's all I know right now).
craig can set up an avalanche to work well with just about anything, rising/falling/whatever rate. that's the beauty of avys...
 

Rik

Turbo Monkey
Nov 6, 2001
1,085
1
Sydney, Australia
The thing is, I already have the shock (came off a SC S8), and I'm looking for a new (second hand) bike to transplant it on to. I'm looking at a Gemini FR or 03 ASX for "freeride" allpurpose stuff, and have given thought to an 01 MC Shockwave for more DH-orientated stuff.
Just have to find out what's going to be the most appropriate. And sending it back for rebuilding is out of the question right now, (money matters :help: )
 

seismic

Turbo Monkey
Dec 22, 2003
3,254
0
South East Asia
Rik said:
The thing is, I already have the shock (came off a SC S8), and I'm looking for a new (second hand) bike to transplant it on to. I'm looking at a Gemini FR or 03 ASX for "freeride" allpurpose stuff, and have given thought to an 01 MC Shockwave for more DH-orientated stuff.
Just have to find out what's going to be the most appropriate. And sending it back for rebuilding is out of the question right now, (money matters :help: )

Just be aware that the shock might act in a totally different way on a new frame...I know it is a matter of $ too, but no doubt a rebuild would be recommended.
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
seismic said:
Just be aware that the shock might act in a totally different way on a new frame...I know it is a matter of $ too, but no doubt a rebuild would be recommended.

maybe you can get craig to send out the shim stack for the new bike, provided the dimensions are the same, or that you can get to the new dimensions only with a shaft spacer, it should work, in your case i the gemini FR uses the same dimensions as the s8 so you should be ok.

switching the shim stacks is not a complex operation and any moto shop that can service an avy should have no problems doing it
 

Rik

Turbo Monkey
Nov 6, 2001
1,085
1
Sydney, Australia
I chose the frames mentioned as they all use the same length+stroke as the shock I own. (well, except for the mountain cycle, but that's a bit of a gamble).
As for moto shops doing servicing, I had a rather hard time finding one that would touch it. I spoke to at least 5 that said the 250psi of nitrogen is outside what they're comfortable working with... although I did have success with one shop, it's still extra money I am not willing to spend right now.
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
Rik said:
I chose the frames mentioned as they all use the same length+stroke as the shock I own. (well, except for the mountain cycle, but that's a bit of a gamble).
As for moto shops doing servicing, I had a rather hard time finding one that would touch it. I spoke to at least 5 that said the 250psi of nitrogen is outside what they're comfortable working with... although I did have success with one shop, it's still extra money I am not willing to spend right now.

fill it with air then, any shock pump will do

no biggie until you find a moto shop that isnt scared of 250psi
 

Rik

Turbo Monkey
Nov 6, 2001
1,085
1
Sydney, Australia
I'm only going off what I've been told by them (could be BS excuses), but the most of them run half that.
But really, I can't blame shops for being a bit wary about a product they've never seen/heard of, from a seperate field that isn't really known for having the best quality gear.
 
Jul 19, 2002
233
0
Vancouver Washington
I had the same problem trying to recharge my shock with nitro. Tke MX shop told me that the highest they will go is 175lbs so I had to take it to someone that just deals with MX shocks only cost me 5 bucks.
 

Extrovert

Chimp
Sep 28, 2004
61
0
Yeah I reckon Avy is the only mtb brand of shock thats quality is on a par with MX shocks.. Maybe Curnutts are too (?)
 

UiUiUiUi

Turbo Monkey
Feb 2, 2003
1,378
0
Berlin, Germany
The Hitman said:
Why the **** did Craig change the polished reservoir? To that!
you shouldn't crosslink to the Avalanche website.

anyway, if you read the website you will see that these reservoirs were made/developed to fit Avalanche shocks on frames with little space for shock an reservoir.
 

Trond

Monkey
Oct 22, 2002
288
0
Oslo, Norway
UiUiUiUi said:
you shouldn't crosslink to the Avalanche website.

anyway, if you read the website you will see that these reservoirs were made/developed to fit Avalanche shocks on frames with little space for shock an reservoir.
I think he meant the actual color on the large piggy, which seems to have the same color as the main body.