Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Thu Sep 29, 2016 6:02 pm
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Sun Aug 05, 2012 12:14 am 
Offline

Joined: Sat May 12, 2012 8:32 am
Posts: 623
Location: Adelaide, Australia
apologies if this has been discussed before, if it has please link me. I was speaking to my RBS mechanic and he said that my titanium skewers aren't tight enough. When he showed me how tight it should be, It was WAY tighter than what my alloy skewers get done up to. Can anyone tell me how tight I should do up my QRs?

_________________
I write the weightweenies blog, hope you like it :)

My SwiftCarbon Ultravox

My Velocite Selene

Disclosure: I'm sponsored by Velocite, but I do give my honest opinion about them (I'm endorsed to race their bikes, not say nice things about them)


Top
   
Posted: Sun Aug 05, 2012 12:14 am 


Top
   
 
PostPosted: Sun Aug 05, 2012 12:44 pm 
Offline

Joined: Sat Aug 27, 2011 3:26 am
Posts: 396
Location: Sydney, Australia
Are the clamping mechanisms different on the skewers?


Top
   
PostPosted: Sun Aug 05, 2012 2:03 pm 
Offline
User avatar

Joined: Thu Mar 17, 2005 3:25 am
Posts: 2206
Location: Southern Indiana USA
Ti has more elasticity (stretch) than regular skewers. Ti is way stronger also. So you have to clamp very tightly with Ti because you still want your wheel held very firmly in the dropouts. I do my Ti skewers as tight as my hand will allow.

_________________
For certain parts stiffer is more important than lighter.


Top
   
PostPosted: Sun Aug 05, 2012 5:15 pm 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 855
Location: Ruidoso, NM
yourdaguy wrote:
Ti has more elasticity (stretch) than regular skewers. Ti is way stronger also. So you have to clamp very tightly with Ti because you still want your wheel held very firmly in the dropouts. I do my Ti skewers as tight as my hand will allow.


Ti has ~60% of the elastic modulus of steel, so if the shafts are the same dimensions Ti will be 60% of the stiffness.

But what you want on a skewer is clamping force. So if the mechanism was also the same, then they would feel the same at closure... but you'd need to start the Ti one with tension earlier on the cam to achieve the same clamping force.

BTW, Ti is *not* stronger than steel used in skewers, but it's about as good.

_________________
formerly rruff...


Top
   
PostPosted: Sun Aug 05, 2012 8:05 pm 
Offline
User avatar

Joined: Sat Dec 06, 2008 10:14 am
Posts: 1042
Location: Sweden
You don't need to over-clamp Ti-skewers. A little, and I mean a LITTLE, tighter than steel skewers, but by no means full force that leaves an imprint on your palm.

What really matters is that everything is lined up properly, the grooves on the nuts lined up with the grooves in the frame from previous clamping, and the skewer handle sitting perfectly in the concave plastic bit, and the springs not fouling the outside of the dropouts.

_________________

The Shivenge


Top
   
PostPosted: Mon Aug 06, 2012 2:27 am 
Offline

Joined: Sun Jul 29, 2012 12:49 am
Posts: 465
DMF wrote:
You don't need to over-clamp Ti-skewers. A little, and I mean a LITTLE, tighter than steel skewers, but by no means full force that leaves an imprint on your palm.

What really matters is that everything is lined up properly, the grooves on the nuts lined up with the grooves in the frame from previous clamping, and the skewer handle sitting perfectly in the concave plastic bit, and the springs not fouling the outside of the dropouts.



Agree with this -- overtightening the skewers could also put stress on the hub bearings. I keep mine just fairly snug.


Top
   
PostPosted: Mon Aug 06, 2012 4:43 am 
Offline

Joined: Wed Feb 04, 2009 5:37 am
Posts: 194
The length of the skewer lever will also effect how tight it "feels" for the same clamping force.


Top
   
PostPosted: Mon Aug 06, 2012 5:40 am 
Offline

Joined: Mon May 30, 2011 9:09 pm
Posts: 8
On my Ebay Ti skewers I tighten them, perhaps just a touch tighter than I would otherwise.

When I first put them on I had read "Oh, you need to REALLY tighten them down". But after experimenting for ~two years, Ive yet to have anything shift on me when tightened down just snug.


Top
   
PostPosted: Mon Aug 06, 2012 11:25 pm 
Offline
User avatar

Joined: Fri May 12, 2006 2:11 pm
Posts: 1313
Location: Stockholm, Sweden
How is with carbon fibre skewers then? Like Tune U20. carbon fibre, alu and ti-axles :)

_________________
/jonas l
http://cerrol.wordpress.com (my cyclingblog)


Top
   
PostPosted: Tue Aug 07, 2012 3:35 am 
Offline
User avatar

Joined: Tue Oct 12, 2010 4:00 pm
Posts: 498
Location: MY
watch out for the end cap, its aluminium even you have a titanium rod. over tighten will damage the end cap tread. I damage my carbon ti end cap before.

_________________
Passoni Mirror

Passoni Xxti


Top
   
Posted: Tue Aug 07, 2012 3:35 am 


Top
   
 
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 10 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Tips on getting off a super tight tyre

in Road

Shrike

13

600

Mon Aug 29, 2016 6:25 pm

tmr5555 View the latest post

There are no new unread posts for this topic. Standard pf30 vs. torq-tight (ish) bottom bracket

in Road

Sweetbabyj45

3

293

Sun Feb 21, 2016 1:29 am

Sweetbabyj45 View the latest post

There are no new unread posts for this topic. Extralite Aliens 4 skewers too long, should I cut them?

in Road

pdlpsher1

9

725

Fri May 13, 2016 12:45 pm

Svetty View the latest post

There are no new unread posts for this topic. QR skewers with 2-piece construction nut/serration?

in Road

kkibbler

7

538

Wed Apr 27, 2016 7:21 am

kkibbler View the latest post

There are no new unread posts for this topic. tune U20 MTB Skewers fit standard road wheels

in Road

xena

2

245

Thu Jun 30, 2016 12:05 pm

xena View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: calleking, Calvaroz, Google Adsense [Bot], MSNbot Media, namejoker, RyanH, Yahoo [Bot] and 24 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:  
Powered by phpBB® Forum Software © phpBB Limited