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  [ 16 posts ] 
Go to page 1, 2  Next
Author Message
PostPosted: Sun Nov 22, 2009 6:18 am 
Offline
User avatar

Joined: Sun Nov 02, 2003 6:48 am
Posts: 1142
Location: Central USA
This ebay seller just reassured me that these bolts are for UT cranksets - due to the limited description if you have any doubts (as I did - especially since there are 2 offered when the crank only needs 1....) then please email him before taking my word for validity of the item (I bought 4.......hope they are as he described via emails......)

I do find the claimed weight savings to be suspect too - I'd guess about 8 - 10 grams per bolt (and only one used...) - but still a few grams saved is a few grams saved!!!!!!!!!!!!!!!!

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... K:MEWAX:IT


Top
 Profile  
 
Posted: Sun Nov 22, 2009 6:18 am 


Top
  
 
PostPosted: Sun Nov 22, 2009 7:57 am 
Offline
User avatar

Joined: Mon Apr 30, 2007 11:02 pm
Posts: 1152
Location: around amsterdam
they are bolts for a isis bottom bracket
ive got some but havent tried them yet


strangly i havent quite worked out of the spacer is Ti to
its lighter then stainles steel so thats good enough for me

_________________
Join the light side

a light bike does make you go faster unless you are slow


Top
 Profile  
 
PostPosted: Sun Nov 22, 2009 11:53 am 
Offline
Administrator
User avatar

Joined: Sat Jun 19, 2004 11:08 am
Posts: 6629
Location: Urbana, Illinois
Looks like a 5mm hex key. With the stock Campy being 10mm I'm might be concerned about rounding it out since that bolt does have a pretty high torque specification.

BTW, if it works please post up.

_________________
-For my next trick I will set myself on fire!
-This board and the world in general would be a much nicer place if everyone could just take themselves a little less seriously.
-Sticky Fingers John Rockefeller
-First one over the cliff wins!


Top
 Profile  
 
PostPosted: Sun Nov 22, 2009 3:37 pm 
Offline
Shop Owner

Joined: Thu Apr 17, 2008 1:07 am
Posts: 986
Location: San Juan, Puerto Rico
I have been runing ISIS M15 Ti bolts on my Ultra Torque for quite some time now.....no issues and you save some weight. make sure the bolt is M15 so you can use a bigger allen key to torque down.

_________________
www.royalbicycles.com


Top
 Profile  
 
PostPosted: Mon Nov 23, 2009 3:49 pm 
Offline

Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3913
Location: lat 38.9677 lon 77.3366
Best to torque it with the steel bolt and then replace it with the ti. Don't forget the ti lube as it will freeze without it :beerchug:

_________________
WW Velocipedist Gargantuan


Top
 Profile  
 
PostPosted: Mon Nov 23, 2009 4:01 pm 
Offline

Joined: Fri Mar 24, 2006 1:26 pm
Posts: 2527
rustychain wrote:
Best to torque it with the steel bolt and then replace it with the ti. Don't forget the ti lube as it will freeze without it :beerchug:


That would do no good at all. The hirth joint is not some sort of tapered fit that like the old square taper or an ISIS BB. The Hirth comes apart easily by hand, once the bolt it removed. The Ti prep would be a good idea. The 42Nm torque is not that large. If the bolt can't take that, it's a piece of junk.


Last edited by DaveS on Tue Nov 24, 2009 2:39 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Tue Nov 24, 2009 2:06 am 
Offline
User avatar

Joined: Thu Dec 04, 2008 7:21 pm
Posts: 796
Location: down by the Jubilee River
Just weighed some bolts:

Campag stock 16g (10mm hex)
SRP Ti M15 Octalink 9g (8mm hex)
Shimano hollow steel M15 Octalink from FC-M572 9g (10mm hex)

These Al. ones are claimed 20g/pr
http://tartybikes.co.uk/product.php?pro ... ory_id=522

Seems like the Shimano ones are the best bet, as they are steel and use the standard UltraTorque tool. Spare part No Y-1E4 98020 and still fairly widely available. I'll be swapping mine on my WW bike and getting a free 7g saving from the parts bin. Result!


Top
 Profile  
 
PostPosted: Tue Nov 24, 2009 4:51 am 
Offline

Joined: Mon Feb 05, 2007 5:39 am
Posts: 651
Location: Winnipeg Canada
You guys are willing to lock your cranks together with just any bolt and void your warranty to save 7 grams? :shock:


Top
 Profile  
 
PostPosted: Tue Nov 24, 2009 11:37 am 
Offline
User avatar

Joined: Thu Dec 04, 2008 7:21 pm
Posts: 796
Location: down by the Jubilee River
That Shimano bolt is designed to hold cranks on, and designed to be torqued to about 40Nm. How could this be a problem? Just seems like Campag left a bit too much metal on their bolt.


Top
 Profile  
 
PostPosted: Tue Nov 24, 2009 3:18 pm 
Offline

Joined: Mon Feb 05, 2007 5:39 am
Posts: 651
Location: Winnipeg Canada
A Shimano bolt on a Campagnolo Crank??!?!?! :shock: LOL Seriously though.... I would assume Campagnolo has made that bolt heavier for a reason is all I am saying... You'd figure they would do their normal thing.. one year the product comes out, next year they add some Carbon or Ti bling to save 10 grams.. they never did that with UT crank though... Oh well, your crank not mine :)


Top
 Profile  
 
PostPosted: Tue Nov 24, 2009 8:11 pm 
Offline
User avatar

Joined: Thu Dec 04, 2008 7:21 pm
Posts: 796
Location: down by the Jubilee River
ParisCarbon wrote:
next year they add some Carbon or Ti bling to save 10 grams..


A bolt which is hidden in the middle of the BB spindle isn't going to be bling whatever you make it from, so it's hardly a candidate for a "Super Record" variant, and you can't label it Ti if you carefully examine the situation and decide that steel really is the best material to use (as I believe it is, in this application)


Top
 Profile  
 
PostPosted: Sat Sep 03, 2011 4:27 am 
Offline

Joined: Tue Oct 30, 2007 5:02 pm
Posts: 642
I've been using Alu. bolt on UT crank for some time now with no ill effects.


Top
 Profile  
 
PostPosted: Sat Sep 03, 2011 4:43 am 
Offline
User avatar

Joined: Sun Nov 02, 2003 6:48 am
Posts: 1142
Location: Central USA
Since someone bumped this old thread up I need to add an update.

Due to my "project" bike not coming together right away (with 2010 steel spindled SR crank), I didn't learn until much, much later that the head of these bolts were ever so slightly too large to work without a small bit of modificaton. So by then the 2011 titanium spindle crankset had been released (with left hand thread on that Ti bolt) so I bought that crankset and sold the bolts (and the 2010 crank separately) on ebay with full disclosure of the bolt issue. So if you come across an ebay seller with a simillar item - don't buy into it - Use the Campy steel bolt unless you have the SR Ti cranks and bolt


Last edited by tommasini on Sat Sep 03, 2011 1:31 pm, edited 3 times in total.

Top
 Profile  
 
PostPosted: Sat Sep 03, 2011 12:08 pm 
Offline

Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3913
Location: lat 38.9677 lon 77.3366
SR Ti bolt has reversed threads so I doubt that will be an issue

_________________
WW Velocipedist Gargantuan


Top
 Profile  
 
PostPosted: Sat Sep 03, 2011 1:37 pm 
Offline
User avatar

Joined: Thu May 04, 2006 4:43 pm
Posts: 4992
Location: Wherever there's a mountain beckoning to be climbed
Why is SR titanium reverse (left hand) threaded from the steel version? Is that just for forced incompatibility so that bolts and cranks are not interchanged?


Top
 Profile  
 
Posted: Sat Sep 03, 2011 1:37 pm 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 16 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: 2old4this, Bing [Bot], dantsai, Google [Bot], Google Adsense [Bot], MSNbot Media and 46 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. Campagnolo SR Ultra Torque installation question

in Road

isharamet

12

728

Sat Feb 22, 2014 9:24 pm

bontie View the latest post

There are no new unread posts for this topic. Campagnolo Ultra Torque fit to new AX Lightness Vial Evo

in Road

robhall2003

12

339

Wed Apr 09, 2014 11:26 pm

wingguy View the latest post

There are no new unread posts for this topic. What dimension circlip pliers for Ultra Torque?

in Road

mm1

2

176

Mon Feb 03, 2014 8:33 pm

ghisallo2003 View the latest post

There are no new unread posts for this topic. Campag/Fulcrum Ultra Torque BB86 cup compatibility

in Road

liam7020

2

391

Sun Jul 28, 2013 10:10 pm

liam7020 View the latest post

There are no new unread posts for this topic. Campagnolo Over Torque and BB30/PF30

in Road

beeatnik

6

864

Fri Dec 20, 2013 4:50 pm

uraqt View the latest post


It is currently Thu Apr 17, 2014 3:19 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