HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 108 posts ] 
Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8  Next
Author Message
PostPosted: Fri May 24, 2013 9:57 am 
Offline

Joined: Wed Jun 02, 2010 7:00 am
Posts: 50
Happened to me today. Brand new latest model 340 rim.

2 wraps of 21mm tape.
120psi.
One tyre brand new Vittoria Corsa 23.
Other tyre worn GP4000 25mm.

What a crappy rim!

As if you would let a rim this dangerous get into the hands of cyclists around the world. This is a class action law suit waiting to happen! lol!

_________________
My YT channel
http://www.youtube.com/user/durianriders?feature=mhee" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


Follow me on Strava
http://app.strava.com/athletes/254600


Top
 Profile  
 
Posted: Fri May 24, 2013 9:57 am 


Top
  
 
PostPosted: Fri May 24, 2013 7:54 pm 
Offline

Joined: Tue Apr 05, 2011 7:41 pm
Posts: 592
I sooooo wanted to build some of these up but the thought of it blowing a tyre off a rim at any speed and getting myself killed is enough to put me off...I am going to go hplus archetype for a bit of wide rim comfort.


Top
 Profile  
 
PostPosted: Sat May 25, 2013 1:47 pm 
Offline

Joined: Mon Mar 12, 2012 4:43 pm
Posts: 231
I have a build in the works - DA7900 32-eyelets with Sapim Laser to Alpha gen2 rims - and I will keep the community updated. I have several mates running alphas for years with zero issues UK including in CX, and I am not overly concerned. Beaides, it cannot be worse than being ran through by a vehicle on multiple ocassions ... at least, I hope not.


I had a Continue 4000s blow off my front OP during a crit last year ... close to 100-degrees and the tube blew. My tire got stuck in brake, and I went from 20 to 0 instantly.


Top
 Profile  
 
PostPosted: Sun May 26, 2013 4:56 pm 
Offline

Joined: Mon Jan 28, 2013 8:47 am
Posts: 5
Ive had two sets of older 340's now, never had a tire blow off. I've always used Hutchinson Fusion 3's, and am currently using Hutchinson Galactik's (Always ran them tubeless). I used to wrap with one layer of tape but I found that when the wheels heated up the base tape would soften up and puncture just from the air pressure in the tire. Started using two layers of 21mm Stan's tape and never had a problem. The tires are MUCH easier to bead up, the bead seats tighter once its aired up, and no more leaking/puncture issues with two layers. I know the Fusion 3's arent the lightest, but I highly recomend them. They last forever, have good grip, are puncture resistant, and the carbon beads are solid and fit in the hook on the 340 wheels perfect.


Top
 Profile  
 
PostPosted: Sun May 26, 2013 10:51 pm 
Offline

Joined: Wed Jun 01, 2011 7:53 am
Posts: 265
That's weird, I have never had any issue with three pairs of those rims and thousands of miles. Then again I don't get why you would use a tube on a tubeless rim. I always used the hutchinson tires - atom, fusion and intensive and the bead locks in place.

I scanned the thread and didn't see anyone having an issue using tubeless ready tires. Am I wrong? Maybe don't use clinchers and tubes on the 340.


Top
 Profile  
 
PostPosted: Sat Jun 08, 2013 2:22 am 
Offline

Joined: Wed Jun 02, 2010 7:00 am
Posts: 50
Got a brand new latest gen Stan's Alpha 400 and using a maxxis tyre it blew that off the rim going around a corner.

Ive riden over 250 000km and never had a tyre blow off a rim. Since using Stan's for the last few weeks, Ive had 3 tyres BLOW OFF THE RIM.

Its time for Stan's to do a recall before someone gets killed. They do not respond to emails nor answer this question on their help forum. Ive also read of people blowing Hutchy Fusion 3's running tubeless, off the rim with sealant covering the rider behind.

_________________
My YT channel
http://www.youtube.com/user/durianriders?feature=mhee" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


Follow me on Strava
http://app.strava.com/athletes/254600


Top
 Profile  
 
PostPosted: Sat Jun 08, 2013 4:24 pm 
Offline

Joined: Thu Mar 03, 2011 10:41 am
Posts: 134
Location: Derbyshire,Uk
Got them with Ultremo zlx 25mm with tubes in and one wrap of yellow tape.... should I worry?


Top
 Profile  
 
PostPosted: Sat Jun 08, 2013 5:24 pm 
Offline

Joined: Wed Jun 01, 2011 7:53 am
Posts: 265
Durianrider can you link to the stuff you read about people blowing hutchinson fusion 3 off the rim of stan's rims? Not saying I don't believe it, just scary.

Tx


Top
 Profile  
 
PostPosted: Tue Jun 11, 2013 8:42 pm 
Offline

Joined: Sat Dec 11, 2010 6:25 pm
Posts: 44
Happened the same to me! I was going on a descent and the front tire exploded..
Then I realized that in the holes of the rim, the stans tape with time starts to go down.. and I think that's the reason for the blows.. Somehow the innertube gets fragilized on those holes...
So I've ordered veloplugs, fitted them to the rim, and then I putted 2 layers of stans tape and voilá.. it's solved... :)

Best regards,

Filipe Dias


Top
 Profile  
 
PostPosted: Tue Jun 11, 2013 8:48 pm 
Offline

Joined: Wed Jun 01, 2011 7:53 am
Posts: 265
Why do so many people use tubes and clinchers on tubeless rims? I don't get the logic.


Top
 Profile  
 
PostPosted: Wed Jun 12, 2013 12:38 am 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 616
Location: Ruidoso, NM
4crosswheels wrote:
Got them with Ultremo zlx 25mm with tubes in and one wrap of yellow tape.... should I worry?


You need two layers of tape.

_________________
formerly rruff...


Top
 Profile  
 
PostPosted: Wed Jun 12, 2013 12:40 am 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 616
Location: Ruidoso, NM
khaostik wrote:
Then I realized that in the holes of the rim, the stans tape with time starts to go down..


That is a completely different issue than what we are discussing here, and did you use two layers of tape?

_________________
formerly rruff...


Top
 Profile  
 
PostPosted: Wed Jun 12, 2013 1:18 am 
Offline

Joined: Mon May 21, 2012 2:32 pm
Posts: 71
Been riding 340s with clinchers for a couple years. Last 6-12 months or so, both wheels have been upgraded to the slightly beefier, newer rim version after each eventually got cracks where spokes were pulling through the rims. I exclusively ride Veloflex on them. For a while now, it's been Corsa 22s or 23s.

I've experienced no problems on them whatsoever. They saw some hard racing until I switched to tubulars for that. I do my intervals on them, fast descents and some pretty mean group rides on them with no worries. If anything, Veloflex tires are rather hard to install on them (by hand - no tire lever). Based on my experiences, I've absolutely no worries riding them, even after reading this topic, although I'd be really wary now were I to fit other tires or find a tire that was too stretched as to be easier on the install. Ymmv. Be safe!


Top
 Profile  
 
PostPosted: Thu Jun 13, 2013 8:20 pm 
Offline

Joined: Tue Dec 23, 2003 9:28 pm
Posts: 1769
Location: Unknown parameter
I'm starting to think it's high inflation pressure in a number of these cases. The above 120psi with a 25mm tire on a 340 rim (effectively more like 27mm) is very high - which negates all the benefits of higher volume tires too.

I'm a fan of red veloplugs on 340 rims - just have to push down hard when installing so they lock in place and conform to the curve better. A screwdriver handle will save your fingers some wear and tear.


Top
 Profile  
 
Posted: Thu Jun 13, 2013 8:20 pm 


Top
  
 
PostPosted: Thu Jun 13, 2013 8:43 pm 
Offline

Joined: Mon May 21, 2012 2:32 pm
Posts: 71
mises wrote:
I'm starting to think it's high inflation pressure in a number of these cases. The above 120psi with a 25mm tire on a 340 rim (effectively more like 27mm) is very high - which negates all the benefits of higher volume tires too.


FWIW I ride Veloflex on these rims from around ~95-110, depending on conditions, and have never once had a problem.

mises wrote:
I'm a fan of red veloplugs on 340 rims - just have to push down hard when installing so they lock in place and conform to the curve better. A screwdriver handle will save your fingers some wear and tear.


I'm currently using two layers of tape, but have also used the red veloplugs on these rims.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 108 posts ] 
Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8  Next


Who is online

Users browsing this forum: BikeTart, Franklin, geca, kgt, mdeth1313, rbrtwyn, tommasini and 45 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Tubeless tires with Campagnolo rims?

in Road

eifelschleicher

0

195

Tue Mar 04, 2014 5:41 pm

eifelschleicher View the latest post

There are no new unread posts for this topic. Alpha 340 wind sensitive?

in Road

fitty4

8

629

Fri Mar 14, 2014 10:09 pm

fitty4 View the latest post

There are no new unread posts for this topic. AX-Lightness Alpha weight limits ??

in Road

roadiesean

3

552

Sun Mar 09, 2014 8:59 pm

xsport View the latest post

There are no new unread posts for this topic. Moving a previously installed Alpha Q fork insert

in Road

FastforaSlowGuy

1

279

Fri Oct 11, 2013 4:03 am

goodboyr View the latest post

There are no new unread posts for this topic. Why are tires so much more expensive in the US

[ Go to page: 1, 2, 3, 4, 5 ]

in Road

Bantamben

68

3875

Sat Sep 14, 2013 8:41 pm

sawyer View the latest post


It is currently Thu Jul 31, 2014 11:58 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB