TRX250R.ORG
Workshop => Suspension and Chassis => Topic started by: dem3500 on April 12, 2016, 11:52:22 AM
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are there any aftermarket links or links from another quad that would allow me to use a longer shock without doing modifications to my frame? just curious cause i have a really nice axis rear shock on my banshee that im going to part out and i thought it would be nice to use it on my r but its a little longer.
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You might could use the factory link with an adjustable durablue dog bone and that shock, but it probably wouldn't perform worth a crap. The leverage ratio needs to be taken into account when valving a shock, and with no shock builder having experience with that exact setup, you couldn't expect it to ride very well.
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well i would want it to ride well so im not going to mess it all up if thats what will happen lol
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well i would want it to ride well so im not going to mess it all up if thats what will happen lol
Sorry to be the messenger of bad news for ya, just being honest. :culpability:
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It's not a problem. That's why I asked, cause I don't know. I've been battling a crappy rear shock for quite a while now. It's an Elka and I'm pretty sure it's cursed. I'm probably going to send it back to Elka and just have them figure it out. That or have this axis shortened. Idk wtf I want to do with it!
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Lrd made a billet link. I think there will be some for sale soon... I have 1....
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It's not a problem. That's why I asked, cause I don't know. I've been battling a crappy rear shock for quite a while now. It's an Elka and I'm pretty sure it's cursed. I'm probably going to send it back to Elka and just have them figure it out. That or have this axis shortened. Idk wtf I want to do with it!
Isn't a banshee rear shock shorter like a raptor then a factory 250r?
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Isn't a banshee rear shock shorter like a raptor then a factory 250r?
its been a while but when i measured it it the banshee was longer.
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wasn't [MENTION=47]troybilt[/MENTION] designing a link?
John
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wasn't [MENTION=47]troybilt[/MENTION] designing a link?
John
No, he was working with Andy Maul on setting up proper calculations for the standard 250r link and several others.
Andy did finish that project(mostly), and developed a new long travel(longer shock) link that would work with a 450r swinger. Drew Cox( Maul Tech) is working on finishing up the project and bringing the parts to market.
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its been a while but when i measured it it the banshee was longer.
Do looking it up a banshee is 14.75 so it's shorter.
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Do looking it up a banshee is 14.75 so it's shorter.
huh i dont know why i was thinking it was longer then. unless its the wrong size for the banshee or maybe i have the wrong size on my R. hmmmm i need to do some double checking. whats the length supposed to be for a 88?
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huh i dont know why i was thinking it was longer then. unless its the wrong size for the banshee or maybe i have the wrong size on my R. hmmmm i need to do some double checking. whats the length supposed to be for a 88?
. 88 shock should be 16 inches long.
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. 88 shock should be 16 inches long.
ok thanks. tonight when i get home im going to double check the length of ALL my rear end components just to be sure.
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ok thanks. tonight when i get home im going to double check the length of ALL my rear end components just to be sure.
Is it possible the banshee was set up for long travel?
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Is it possible the banshee was set up for long travel?
That's what I was thinking.
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Is it possible the banshee was set up for long travel?
It had a stock swinger when I bought it. I changed to an extended one but that's it. I was referring to checking the components on my R. Ever since I got the thing I have been battling garbage rear suspension. No matter what I do I can't get it right. Used 3 different shocks trying to figure it out. Maybe there's something wrong with the linkage. Maybe it has been wrong since the day I bought it. I have no idea lol just trying to get a setup that won't freaking buck me off the damn thing!
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It had a stock swinger when I bought it. I changed to an extended one but that's it. I was referring to checking the components on my R. Ever since I got the thing I have been battling garbage rear suspension. No matter what I do I can't get it right. Used 3 different shocks trying to figure it out. Maybe there's something wrong with the linkage. Maybe it has been wrong since the day I bought it. I have no idea lol just trying to get a setup that won't freaking buck me off the damn thing!
You just described either a shock with the rebound set way too fast or a suspension with a jacked up leverage ratio.
When you are checking it tonight, take some pics if you could. That would help us determine if you have the correct linkage components as well. Along with measuring the eye to eye length of the shock, measure the eye to eye length of the rear dogbone too. Again, if you can.
Also, check the rebound screw on the shock and see how many turns out it is. That will tell us where the rebound is set at also.
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You just described either a shock with the rebound set way too fast or a suspension with a jacked up leverage ratio.
When you are checking it tonight, take some pics if you could. That would help us determine if you have the correct linkage components as well. Along with measuring the eye to eye length of the shock, measure the eye to eye length of the rear dogbone too. Again, if you can.
Also, check the rebound screw on the shock and see how many turns out it is. That will tell us where the rebound is set at also.
I totally will! Thanks!
From talking to a bunch of different riders I'm pretty sure it's packing up. When I had the shock apart 2 weeks ago the rebound rod wasn't freely moving in the shock but I don't know if it's supposed to move easy or not.......although...... The results are the same with the two other shocks I have tried. Appears to be packing. I have tried adjusting the rebound the full range on all the shocks. I hope it is the wrong linkage. At least I will have something tangeable that I can now fix!
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In order to help better, we are gonna need a little more background info. So you have said that it is trying to buck you off. And you are also unsure if the parts are correct. Ok. So when you check the parts tonight, that will cover that concern.
How are you using the quad? How are you riding? Dunes? Mx? woods?
Typically there are two characteristics that describe rebound when it is too slow or too fast.
1. If rebound is too slow, shock will be packing up (not full extending before taking the next bump) and the quad rear will want to kick side to side.
2. If rebound is too fast, the rear will be smacking your butt and trying to buck you over the handlebars.
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In order to help better, we are gonna need a little more background info. So you have said that it is trying to buck you off. And you are also unsure if the parts are correct. Ok. So when you check the parts tonight, that will cover that concern.
How are you using the quad? How are you riding? Dunes? Mx? woods?
Typically there are two characteristics that describe rebound when it is too slow or too fast.
1. If rebound is too slow, shock will be packing up (not full extending before taking the next bump) and the quad rear will want to kick side to side.
2. If rebound is too fast, the rear will be smacking your butt and trying to buck you over the handlebars.
i race XC.
between 1 and 2 id have to say some of both but if i had to pick one id have to say 2. it smacks me in the rear end on whoops and choppy stuff. part of my problem is im new to custom setup suspension and i really dont know what its supposed to feel like. when i have a chance im going to ride my buddies quad. its set up for about 20-25 lbs heavier than i am but im sure it will be close enough. not an R but none the less hopefully it will be able to get me a feel on what its supposed to feel like. it sucks cause i have a ton more power than all those 4 strokes and i almost always in the first 3 if not 1st on the hole shot but as soon as it gets choppy i get the crap beat out of me and start to fall behind. if i can wheelie over all the rough stuff im fine haha but thats pretty hard to do throughout the whole race lol
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Sounds like there are several things that could contribute to the problem. First things first. Check the parts you have to make sure they are correct for the application. 2nd, check how many turns out the rear shock is. 3rd, what is your rear ride height? 4th. How many turns (roughly) did you have on the rear shock spring locking nut to achieve the ride height? If you having alot of turns on it to achieve your desired ride height, then the spring is too soft and you have too much preload on the spring. If so, when you hit bumps, it would feel very stiff and react very quickly and strongly.
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Sounds like there are several things that could contribute to the problem. First things first. Check the parts you have to make sure they are correct for the application. 2nd, check how many turns out the rear shock is. 3rd, what is your rear ride height? 4th. How many turns (roughly) did you have on the rear shock spring locking nut to achieve the ride height? If you having alot of turns on it to achieve your desired ride height, then the spring is too soft and you have too much preload on the spring. If so, when you hit bumps, it would feel very stiff and react very quickly and strongly.
the shock was just torn apart a couple weeks ago and isnt on the bike now. ive used 3 different springs and none of them had anything excessive as far as preload but when i get the shock back on my bike i can get you that info no problem. ive had the rebound screw adjusted to its full range in both directions on all 3 shocks ive tried but when i get it all together and riding again i will start to keep track of everything so at least you will have something to go off of. last season i had my ride height higher than normal. it made a big difference being high. iirc was like 8'' in front and 7 1/2'' in back.....i think.
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Ok here you go
(http://i537.photobucket.com/albums/ff335/dem3500/TRX250R/IMG_20160413_165854338_zpsdcorbpfu.jpg) (http://s537.photobucket.com/user/dem3500/media/TRX250R/IMG_20160413_165854338_zpsdcorbpfu.jpg.html)
(http://i537.photobucket.com/albums/ff335/dem3500/TRX250R/IMG_20160413_165918780_zpswhwdy6ia.jpg) (http://s537.photobucket.com/user/dem3500/media/TRX250R/IMG_20160413_165918780_zpswhwdy6ia.jpg.html)
(http://i537.photobucket.com/albums/ff335/dem3500/TRX250R/IMG_20160413_170007134_zps2ltwdryk.jpg) (http://s537.photobucket.com/user/dem3500/media/TRX250R/IMG_20160413_170007134_zps2ltwdryk.jpg.html)
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It looks like all your components are correct for each other. At this point, I would say this is an Elka problem. If you adjusted the rebound from as fast as it will go to as slow as it will go and noticed no difference, then something is wrong. And I don't think that it is preload because your ride height is where it needs to be. I think it may be time to send the shock to a shock builder and get them to investigate the problem.
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It looks like all your components are correct for each other. At this point, I would say this is an Elka problem. If you adjusted the rebound from as fast as it will go to as slow as it will go and noticed no difference, then something is wrong. And I don't think that it is preload because your ride height is where it needs to be. I think it may be time to send the shock to a shock builder and get them to investigate the problem.
it has been to a builder 3 times. im thinking about sending it to elka. at least i know it will get fixed right.
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it has been to a builder 3 times. im thinking about sending it to elka. at least i know it will get fixed right.
Dang, that sucks. Well, all I can say is: if that builder can't tell you what is going on with that shock, then I would choose another builder or Elka themselves.
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Dang, that sucks. Well, all I can say is: if that builder can't tell you what is going on with that shock, then I would choose another builder or Elka themselves.
lol yea i already gave up on the first builder i was using. super nice guy but i was tired of the back and fourth without any improvement. the guy i am using now isnt a builder per say but is knowledgeable and has training in shocks. when i get the bike back together im going to go riding with him so he can watch whats going on with the rear shock. im also going to put my go pro (if its not muddy) pointing at my rear shock. hopefully that will help
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I actually have one of my spare frames at a good buddy of John Arens right now. He is fabbing mounts for a 06+ trx450r linkage and he is also custom fabbing a swingarm to get the linkage setup correct. It won't be done for a little bit because he is trying to figure out the leverage and everything else so it preforms correctly. The guy whose doing the work custom made his swingarm, a arms, and steering stem for his nationals trx450r.
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I actually have one of my spare frames at a good buddy of John Arens right now. He is fabbing mounts for a 06+ trx450r linkage and he is also custom fabbing a swingarm to get the linkage setup correct. It won't be done for a little bit because he is trying to figure out the leverage and everything else so it preforms correctly. The guy whose doing the work custom made his swingarm, a arms, and steering stem for his nationals trx450r.
thats super cool! i have an arens. i know of john. he lives 45 min from me. one of the guys i race xc with used to work for john. its a small world lol!
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thats super cool! i have an arens. i know of john. he lives 45 min from me. one of the guys i race xc with used to work for john. its a small world lol!
I have a Arens too and I'm planning to have it modified for the 450r linkage once it's worked out. Johns pretty close to me too about 30-40 min.