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PostPosted: Fri Jun 24, 2011 10:38 pm 
98+ BoTM Winner / Gold Trader
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There must be a few sets of the standard rockers about that came from bikes converted to e.g. the Push rockers or later models to give 5.5" travel.

And it looks to have failed at the crest of the relieved section, relating the failure to the modification. Stress concentration at the reduced cross section and a fatigue crack propagating until the remaining ligament is overstressed and tears. The fracture surface would show this.


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PostPosted: Sat Jun 25, 2011 12:05 pm 
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utahdog2003 wrote:
It is, as is the replacement. Anodized after being relieved to clear the valve, so it is a factory change. I'm looking for unmodded 5.3 rockers, but so far no dice. :cry:


All 5.3 rockers have the valve clearance recess. The older 5.1" rockers which were used withe the Romic shock don't have this.

Rocker failure is pretty rare, but its also easy to pick up Spot rockers on eBay and through mtbr.


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PostPosted: Mon Jun 27, 2011 5:28 pm 
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IbocProSX wrote:
There must be a few sets of the standard rockers about that came from bikes converted to e.g. the Push rockers or later models to give 5.5" travel.


PUSH and 5.5's would be complete overkill for me, I think. I have 5.3's, but if they are all relieved like that, then I may shop for some older 5.1's

IbocProSX wrote:
And it looks to have failed at the crest of the relieved section, relating the failure to the modification. Stress concentration at the reduced cross section and a fatigue crack propagating until the remaining ligament is overstressed and tears. The fracture surface would show this.

Exactly

andrewl wrote:
All 5.3 rockers have the valve clearance recess. The older 5.1" rockers which were used withe the Romic shock don't have this.


Really? that's too bad. I dig the 5.3's and I'd like a set without the indentations.

andrewl wrote:
Rocker failure is pretty rare, but its also easy to pick up Spot rockers on eBay and through mtbr.


I did snag a set of 5.1's and 5.3's, from MTBR and eBay respectively. Also picked up a later rear swingarm assembly, with the asymetrical stays.

It's a nice bike. I like it. :D


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PostPosted: Tue Jun 28, 2011 1:12 am 
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When the Romic was dropped and replaced with the RP3 the travel was tweeked to give 5.3" of travel and thus all the 5.3 are set up for the air shock and a common complaint with the 5.1 was that the valve will make contact with the rocker.

Other than changing the shock or modifying some 5.1" rockers you are stuck with 5.3" or 5.5" rockers in standard form. the stock 5.5" rockers are probably the best option as they don't fail like the 5.3s and are a better match for a 140mm fork.

Old 5" RFX rockers (2002 and older) are the strongest of the 5" rockers and are identical in shape to the old 5.1" so if you really want to have 5.1" rockers and the valve clearance is ok, then maybe consider those.


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PostPosted: Tue Jul 05, 2011 6:23 pm 
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andrewl wrote:
When the Romic was dropped and replaced with the RP3 the travel was tweeked to give 5.3" of travel and thus all the 5.3 are set up for the air shock and a common complaint with the 5.1 was that the valve will make contact with the rocker.

Other than changing the shock or modifying some 5.1" rockers you are stuck with 5.3" or 5.5" rockers in standard form. the stock 5.5" rockers are probably the best option as they don't fail like the 5.3s and are a better match for a 140mm fork.

Old 5" RFX rockers (2002 and older) are the strongest of the 5" rockers and are identical in shape to the old 5.1" so if you really want to have 5.1" rockers and the valve clearance is ok, then maybe consider those.


I am not running the DHX5.0 any longer...I should have made that clear. I've never liked air shocks, and as I'm a big boy, the weight penalty of a coil-over is not a concern for me. What I'd really like therefor, is a set of 5.1's from the early days...sans air-valve relief.

Anyone have spare rockers floating around? Bueller?


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 Post subject:
PostPosted: Wed Jul 06, 2011 3:00 am 
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utahdog2003 wrote:
I am not running the DHX5.0 any longer...I should have made that clear. I've never liked air shocks, and as I'm a big boy, the weight penalty of a coil-over is not a concern for me. What I'd really like therefor, is a set of 5.1's from the early days...sans air-valve relief.

Anyone have spare rockers floating around? Bueller?


I'll see what I've got in my rocker collection. I may have a spare set of 5.1s


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 Post subject:
PostPosted: Thu Jul 07, 2011 2:10 pm 
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andrewl wrote:
utahdog2003 wrote:
I am not running the DHX5.0 any longer...I should have made that clear. I've never liked air shocks, and as I'm a big boy, the weight penalty of a coil-over is not a concern for me. What I'd really like therefor, is a set of 5.1's from the early days...sans air-valve relief.

Anyone have spare rockers floating around? Bueller?


I'll see what I've got in my rocker collection. I may have a spare set of 5.1s


That would be great. :)


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 Post subject: UPDATE!
PostPosted: Thu May 03, 2012 7:23 pm 
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Turner Update! Fully rebuilt from when I first assembled it. Now fitted with Cane Creek Double Barrel, later offset chainstay TNT rear triangle, and 5.3 rockers. With the latest improvements, it is essentially the last and latest of the pre DW-Link Turners. Pics, in Tennessee at Raccoon Mountain in Chattanooga, and with me in a 12 hour relay race in central Florida. In the race pic you can clearly see the retro addiction runs deep, Altek levers, and Sachs Attack shifters.

Fun bike.


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 Post subject:
PostPosted: Wed May 09, 2012 11:55 am 
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Lovely bike and great colour in blue 8) .... I absolutely love mine!


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 Post subject:
PostPosted: Tue May 29, 2012 3:28 pm 
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wrong picture. meant to post this one. oops.


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