ProFlex Beast
08-11-10 | 06:14 PM
#1
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
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From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
ProFlex Beast
I posted this over at the MTB forum but know that a lot of you guys deal with vintage MTBs too 
so here it goes. Does anyone here know the size (diameter and lenth) of the springs (front and rear) needed to replace the old rubber thingys on the Girvin ODS (oil damping system) shocks on the ProFlex Beast? I just picked up a Beast for a really decent price but of course the rubber "bumpers" are all melted to hell! 
If anyone can help me in any way I'd truly appreciate it. 
Its just like the bike pictured below but green.
so here it goes. Does anyone here know the size (diameter and lenth) of the springs (front and rear) needed to replace the old rubber thingys on the Girvin ODS (oil damping system) shocks on the ProFlex Beast? I just picked up a Beast for a really decent price but of course the rubber "bumpers" are all melted to hell! If anyone can help me in any way I'd truly appreciate it. Its just like the bike pictured below but green.
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You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
Last edited by ilikebikes; 08-11-10 at 06:39 PM.
08-11-10 | 06:35 PM
#3
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
I guess I'm posting the wrong name for the shocks? Its the ones pictured above, the little yellow bumper like thingys on the shocks. They are labled Girvin ODS. (oil damping system)
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You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
Last edited by ilikebikes; 08-11-10 at 06:40 PM.
08-11-10 | 06:42 PM
#4
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
I clicked on the attachment and my bike is the same exact bike you have but it has/had the rubber "bumper" things on it instead of the springs! Help please! LOL! ;0)
__________________
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
08-11-10 | 06:47 PM
#5
Senior Member
Joined: Sep 2007
Posts: 1,437
Likes: 2
From: Vancouver
Bikes: NOYB
OK. Those are MCUs (multi-cellular urethane). It's common for them to harden up with age.
One trick I've heard works well is to drop them into a pot of boiling water for a few minutes. Softens them up and returns them to their original size.
Have you found a source for replacement MCUs? That would surprise me since I haven't seen any since the 90's. A lot of people swapped out the yellow foam for a coil-over shock at some point.
One trick I've heard works well is to drop them into a pot of boiling water for a few minutes. Softens them up and returns them to their original size.
Have you found a source for replacement MCUs? That would surprise me since I haven't seen any since the 90's. A lot of people swapped out the yellow foam for a coil-over shock at some point.
08-11-10 | 06:50 PM
#7
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
Yes! Those things just melted! for some reason Tourchy McFlux thinks they hardened up? but as I stated in my postings they melted!
__________________
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
08-11-10 | 06:52 PM
#8
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
OK. Those are MCUs (multi-cellular urethane). It's common for them to harden up with age.
One trick I've heard works well is to drop them into a pot of boiling water for a few minutes. Softens them up and returns them to their original size.
Have you found a source for replacement MCUs? That would surprise me since I haven't seen any since the 90's. A lot of people swapped out the yellow foam for a coil-over shock at some point.
One trick I've heard works well is to drop them into a pot of boiling water for a few minutes. Softens them up and returns them to their original size.
Have you found a source for replacement MCUs? That would surprise me since I haven't seen any since the 90's. A lot of people swapped out the yellow foam for a coil-over shock at some point.
__________________
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
08-11-10 | 06:57 PM
#9
Roadie in Training
Joined: Aug 2009
Posts: 409
Likes: 1
I have seen rebuild kits for early Manitou forks that replace the elsatomers with springs, so I'm sure it's possible, I don't know where you'd get the springs though.
In my readings online I have found instances of people making their own replacement elastomers, so that might be something to look at.
In my readings online I have found instances of people making their own replacement elastomers, so that might be something to look at.
08-11-10 | 07:24 PM
#10
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
I'm going to try the springs from other shocks and see how it works out, I'm pretty sure most springs are a standard size. unless you can post a link to the people making the replacement elastomers. ;0)
unless you can post a link to the people making the replacement elastomers. ;0)
__________________
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
08-11-10 | 07:52 PM
#11
Senior Member
Joined: Jun 2009
Posts: 1,613
Likes: 337
From: Plano, IL.
This site may have the elastomers your looking for https://suspensionforkparts.net/eshop/index.php
There is another site that has spring kits.........let me do some digging...........
There is another site that has spring kits.........let me do some digging...........
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Be where your feet are.......Lisa Bluder
Be where your feet are.......Lisa Bluder
08-11-10 | 08:13 PM
#12
Senior Member
Joined: Jun 2009
Posts: 1,613
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From: Plano, IL.
Well.........these guys were making them but quit. https://www.rapiddescentscotland.co.u..._position=10:7 longshot but might be able to scare a set up on ebay.
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Be where your feet are.......Lisa Bluder
Be where your feet are.......Lisa Bluder
08-11-10 | 10:50 PM
#13
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
This site may have the elastomers your looking for https://suspensionforkparts.net/eshop/index.php
There is another site that has spring kits.........let me do some digging...........
There is another site that has spring kits.........let me do some digging...........
haha! Thanks much man! Your a ****in' life saver!
__________________
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
08-12-10 | 07:52 AM
#14
Senior Member
Joined: Jun 2009
Posts: 1,613
Likes: 337
From: Plano, IL.
Your welcome..........I bought an old Manitou fork off the bay last winter that had supposedly been rebuilt with extra heavy springs installed and when I received it, it had zero rebound with some of the original elastomers missing. Misrepresented for sure, but that was one of the online retailers I came across in an effort to correct the problem. Finding some Girvin springs may take some extensive searching. If thats the same ProFlex that was on Chicago CL, I took a long look at it myself, but decided not to persue it.............Happy Trails
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Be where your feet are.......Lisa Bluder
Be where your feet are.......Lisa Bluder
08-12-10 | 05:25 PM
#15
Thread Starter
K2ProFlex baby!
Joined: Feb 2007
Posts: 6,134
Likes: 59
From: My response would have been something along the lines of: "Does your bike have computer controlled suspension? Then shut your piehole, this baby is from the future!"
Bikes: to many to list
OK, I decided to not replace the elastomers as they still have the same melting problem. Instead I went ahead and measured the cups where the elastomers used to be, found a coil spring that would fit and viola! Perfection! Here are a few pics of the bike in as found condition 'cept for the rear shock which I just rebuilt using the coil spring to replace the elastomers.
This is the bike.
This pic shows the elastomer (black tarry stuff) melted all over the wheel and tire.
This pic shows remnants of the melted elastomer on the swing arm.
This is the rear shock cleaned up and mounted with the new coil spring. You can see some melted elastomer on the sway arms.
Rear shock
Front shock with melted elastomer all over it, I'll clean it up and rebuild it with a coil spring soon. The rear shock looked just like this.
This is the bike.
This pic shows the elastomer (black tarry stuff) melted all over the wheel and tire.
This pic shows remnants of the melted elastomer on the swing arm.
This is the rear shock cleaned up and mounted with the new coil spring. You can see some melted elastomer on the sway arms.
Rear shock
Front shock with melted elastomer all over it, I'll clean it up and rebuild it with a coil spring soon. The rear shock looked just like this.
__________________
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
Last edited by ilikebikes; 08-12-10 at 05:31 PM.
08-19-10 | 11:13 AM
#16
Newbie
Joined: Aug 2010
Posts: 1
Likes: 0
OK, I decided to not replace the elastomers as they still have the same melting problem. Instead I went ahead and measured the cups where the elastomers used to be, found a coil spring that would fit and viola! Perfection! Here are a few pics of the bike in as found condition 'cept for the rear shock which I just rebuilt using the coil spring to replace the elastomers.
