Have Twinwalls? Please Read!!!

[yz250roost]

Hey guys,
I just wanted to warn all of you Renthal Twinwall users to check your bars as soon as possible. The Twinwalls seem to be cracking on the larger bar, right at the bend above the crossbar clamp, it will most likely on the side facing the rider. I have seen lots of these bars coming in over the last two months, and most of the cracks are very small hairline cracks that you wouldn't notice right away, you have to really examine the bar. If you find that your bar is cracking please send it to Renthal America as soon as possible for a replacement.
Jeff

 

[Casper250]

I had that exact thing happen on the last set I had. Renthal replaced them for free! :thumb:

 

[yz250roost]

Yep, Renthal is a great company. I hate to say it, but you might want to consider replacing them with fatbars, we keep having these bars coming back with cracks in them, I don't get any fatbars back, except for one pair from Ty Davis that looked like they had been through a nasty spill, and they didn't even break or crack, they just bent. I bought fatbars for my bike the other day.

 

[marcusgunby]

roost im not so sure i would be happy with them just replacing them,on any product that has a significant failure rate they should issue a recall, i have heard of this problem for over a year and no one has ever published a recall as far as i know.Ive not heard of one snapping yet but it cant be a good thing to have crack in the outer bar.

 

[yz250roost]

Marcus, I know exactly what you are talking about, I've seen some so bad that they have over a 1/2" gap between the pieces of torn metal, I too have not seen one that has been broken all the way through. If anyone has any questions about where to return them to or how to go about returning them, you can e-mail me or pm me. The easiest way is to get an RA Number issued from Renthal for replacement, that way they have knowledge of the product you are returning.]

And if you do send a pair in, send a little note to me with the bars saying you're from DRN.

 

[JTT]

I've been hearing about numerous catastrophic failures of Renthal bars over in the Trials world too (these aren't Twinwalls, but standard Renthals). Seems like an odd coincidence. Have they changed suppliers, or alloys recently?

 

[TheJunkMan]

hmmm. I better check the ones on my JTX maybe I will switch to the HEBO's

 

[kawdude]

Interesting. I have two sets of twinwall bars both ended their lives with the problem mentioned.

The first time, the bike fell over and the bar end darn near broke off. I couldn't believe it and I kept thinking about how strong these bars are supposed to be. I had a hard time replacing this because sales person felt that I had laid it down or hit a tree...something greater than the bike falling over. :flame:

The second time the crack was found by accident which made me think that it was the issue the first time. In talking with Renthal I brought up the previous issue and at this point they agreed that the bar was probably cracked before the bike fell...duh! :moon:

Either way I'm done with the twinwall bars until these issues are fixed.

TAG bars all the way :thumb:

 

[roadrash1]

Years ago, didn't McGrath DNF a supercross race after the prototype for these bars broke on his bike in a low-speed tip-over?

 

[mxneagle]

Actually I thought MC DNF'd because the bars were too strong and actually broke the triple clamp instead.

 

[adbot]

Advertisement

<iframe src='http://www.dirtrider.net/phpads/adframe.php?what=468x60&target=_blank' framespacing='0' frameborder='yes' scrolling='no' width='472' height='64'>
<script language='JavaScript' src='http://www.dirtrider.net/phpads/adjs.php?what=468x60&target=_blank'></script>
<noscript><a href='http://www.dirtrider.net/phpads/adclick.php' target='_blank'><img src='http://www.dirtrider.net/phpads/adview.php?what=468x60&target=_blank' border='0'></a></noscript></iframe>

 

[Okiewan]

test2

 

[Okiewan]

test3

 

[Okiewan]

test4

 

[adbot]

Advertisement

<iframe src='http://www.dirtrider.net/phpads/adframe.php?what=468x60&target=_blank' framespacing='0' frameborder='yes' scrolling='no' width='472' height='64'>
<script language='JavaScript' src='http://www.dirtrider.net/phpads/adjs.php?what=468x60&target=_blank'></script>
<noscript><a href='http://www.dirtrider.net/phpads/adclick.php' target='_blank'><img src='http://www.dirtrider.net/phpads/adview.php?what=468x60&target=_blank' border='0'></a></noscript></iframe>

 

[Okiewan]

sorry!

 

[roadrash1]

I think you have it right. I just remembered it was one of the initial runs of the big bars.

Actually I thought MC DNF'd because the bars were too strong and actually broke the triple clamp instead.

 

[Jeff Howe]

I cracked 3 of them like this, first one occured in late 2000 and then 2 more in 01. I got tired of sending them back even though they were replaced for free. Moved to Azonic Double Cross in 02 and haven't had a single problem in 2 years with them. I gave away the last one that cracked and the guy got new bars out of them of course. I personally think they are junk and I'll not buy another as long as I ride.

MC snapped the mounting bolts on his bar mounts in that race, not the bars.

 

[will pattison]

well, i may be biased, but i think the answer to all renthal problems is to switch to pro tapers!! ;-)

as for tags, well, here's an inside story...but to keep the guilty parties safe, i'll try to keep it anonymous.

recently, a certain well respected and very fast pro rider recently joined a new team. his old team had a relationship with renthal, and this rider chose to continue using them even though his new team has a relationship with tag. this rider's new team also has another member that's been on the team a while. that rider as well as a rider who used to be on the team but who is now on a new one have always used pro tapers in spite of that same relationship with tag. confused yet? in other words, not all was as appeared on the surface - both riders on that team preferred pro tapers.

well, the unamed new rider took a header at a recent supercross and bent his renthals. now, that rider's new team is the beneficiary of technology from one of the o.e.m. racing departments, but is itself not a factory team. the o.e.m. factory team has had a long standing relationship with pro taper, and it was recently learned that said o.e.m. racing department called the owner of said satellite team and basically "suggested" that they run pro tapers from now on.

now, all credit where due - there are lots of good bars out there, but i think that was about as clear a message of confidence in the quality of pro taper as you could ask for.

and yes, i would swear in court as to the truth of this story.

wp.

 

[Jeff Howe]

I am one of them weird old school guys that HAS to have a crossbar! I'm sticking to Azonic's. Bars just don't seem right to me without a crossbar.

 

[Senior KX Rider]

I agree. I have a set of ProTapers and a set of Tags hanging on the wall but I feel more comfortable with the crossbar.

 

[fastoneyz426]

I had the same problem on my sons bike. The whole right side came loose and he came in the pit and we duct taped it to the bark buster to finish the race. I just thought that he hit something real hard in the woods. When I took the tape off the throttle side slid right out of the outer bar and just left the plastic tube showing.

 

[KXaggerator]

I had a high speed get off in the desert on my KX500 that bent one bolt and sheared the other off of my Applied bar clamp, but I still run those same Protapers five years later with no apparent damage to them. Now if they would just make a Jimmy Button bend I would be even happier.

 

[will pattison]

I had a high speed get off in the desert on my KX500 that bent one bolt and sheared the other off of my Applied bar clamp, but I still run those same Protapers five years later with no apparent damage to them. Now if they would just make a Jimmy Button bend I would be even happier.

jimmy button, eh? you must be 7' tall!

if you get me the specs, i can tell you which pro taper is the closest.

also, for you crossbar guys, be on the lookout for the new pro taper se bar. it's our new 7/8" deluxe, and it's phat! i think you can even see it now over at www.protaper.com. we basically went after all the weakness of current products and tried to make a top of the line 7/8" product that addressed them all. this bar is stout! we also offer 7/8" bar mounts for our entire line of triple clamps.

wp.

 

[KXaggerator]

Will,
I am just over 6', but I am tall in the torso. I have the Button 7/8" Renthal on my KX310 and nothing feels better on any bike I have ridden and the cross bar just clears my GPR steering stabilizer. Here is the goon like specs:

A - 807
B - 110
C - 85
D - 205
E - 67