Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Wed Nov 22, 2017 5:56 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 69 posts ]  Go to page 1 2 3 4 5 Next
Author Message
PostPosted: Sat May 06, 2017 3:45 pm 
Offline
Moderator

Joined: Sat Apr 22, 2006 12:38 am
Posts: 2034
Location: Dutchess County, NY
My new bike has 160 mm rotors. I've searched but haven't found an up to date topic that covers the best compromise for weight/performance for rotors. The stock wheels came with (heavy) shimano rt 56 rotors, I definitely don't want to go with those for the wheels I'm waiting for.

Looking for input...

_________________
Speedplay is the devil!


Top
   
PostPosted: Sat May 06, 2017 3:59 pm 
Offline

Joined: Fri Feb 18, 2005 6:50 pm
Posts: 211
Location: Wilmington, DE
I settled on the RT99 XTR rotors (though I'd have bought the new Dura Ace rotors if they were available for the looks alone). I figured I am paying an overall weight penalty for running discs in the first place so I might as well run the best discs I can. And the weight penalty is ~50 grams vs. a true lightweight pair of rotors which really doesn't bother me.


Top
   
Posted: Sat May 06, 2017 3:59 pm 


Top
   
 
PostPosted: Sat May 06, 2017 5:00 pm 
Offline
User avatar

Joined: Mon Jul 07, 2014 8:15 am
Posts: 1712
Location: NorthEU
Perhaps try a few and see what you'd like best?

_________________
Bikes:

Ax Lightness Vial EVO D
Paduano Racing Fidia
Open *UP*
https://opencycle.com/showcase/the-xplo ... eelsonfire


Top
   
PostPosted: Sat May 06, 2017 6:01 pm 
Offline

Joined: Sun Jan 08, 2017 12:44 pm
Posts: 64
mdeth1313 wrote:
My new bike has 160 mm rotors. I've searched but haven't found an up to date topic that covers the best compromise for weight/performance for rotors. The stock wheels came with (heavy) shimano rt 56 rotors, I definitely don't want to go with those for the wheels I'm waiting for.

Looking for input...


Theoretically the best Centerlock rotors are Absolute Black ones. They have a float construction so they doesn't deforme too much under increased temperatures and they are also the lightest on the market. But they are not selling them from some reason, probably some issues with them or with manufacturing...

Otherwise​ the best are XTR rotors. In case you don't care too much about the best cooling properties of the rotor, you can settle with XT rotors. They work fine and weight penalty is very small to XTR rotors.


Top
   
PostPosted: Sun May 07, 2017 2:05 am 
Offline

Joined: Thu Mar 09, 2017 5:35 am
Posts: 121
I've been using and bleeding/truing/cleaning hydraulic disk brakes on my mountain bikes for well over five years. I would say that you definately want to buy a floating rotor type as the previous poster suggested. I never really liked the Shimano rotors, always very heavy.

I always loved my avid floating rotors, even on Shimano.

Image


Top
   
PostPosted: Sun May 07, 2017 6:01 am 
Offline

Joined: Tue Jun 30, 2015 3:30 am
Posts: 262
Lewn777 wrote:
I've been using and bleeding/truing/cleaning hydraulic disk brakes on my mountain bikes for well over five years. I would say that you definately want to buy a floating rotor type as the previous poster suggested. I never really liked the Shimano rotors, always very heavy.

I always loved my avid floating rotors, even on Shimano.

Image

Is it really floating design? It seems that the rotor is fixed by the pins and hence not "floating".


Top
   
PostPosted: Sun May 07, 2017 6:41 am 
Offline

Joined: Thu Mar 09, 2017 5:35 am
Posts: 121
jlok wrote:
Lewn777 wrote:
I've been using and bleeding/truing/cleaning hydraulic disk brakes on my mountain bikes for well over five years. I would say that you definately want to buy a floating rotor type as the previous poster suggested. I never really liked the Shimano rotors, always very heavy.

I always loved my avid floating rotors, even on Shimano.

Image

Is it really floating design? It seems that the rotor is fixed by the pins and hence not "floating".


It's not technically speaking totally floating as the pins aren't hollow, but it performs just the same, with the same weight reduction. Being that the heat is dissipated and the inner is alloy.


Top
   
PostPosted: Sun May 07, 2017 7:12 am 
Offline

Joined: Tue Aug 12, 2014 3:50 pm
Posts: 1015
Location: FIN
Have limited experience ( Magura Sl 6b, Shimano 99 CL, Sram Centerline CL ) but my hoice was and will be Sram Centerline. Best braking, relatively light, impossible to overheat. And sit most far from frame ( tight tolerance ) from all mentioned.

_________________
Go to Heaven for the climate, Hell for the company.
Mark Twain


I can be wrong, and have plenty of examples for that ;)


Top
   
PostPosted: Sun May 07, 2017 8:19 am 
Offline

Joined: Tue Jun 30, 2015 3:30 am
Posts: 262
I thought by floating it means sth like that...

https://youtu.be/R9YXDcLR_5w


Top
   
PostPosted: Sun May 07, 2017 11:55 am 
Offline

Joined: Thu Mar 09, 2017 5:35 am
Posts: 121
stormur wrote:
Have limited experience ( Magura Sl 6b, Shimano 99 CL, Sram Centerline CL ) but my hoice was and will be Sram Centerline. Best braking, relatively light, impossible to overheat. And sit most far from frame ( tight tolerance ) from all mentioned.

Image
Makes sense, I would run these too. :beerchug:


Top
   
PostPosted: Mon May 08, 2017 10:45 am 
Online
User avatar

Joined: Fri Jul 10, 2009 7:22 pm
Posts: 1377
Location: London
On my commuter/gravel bike I started out with Hope X2 lightweight rotors. While they were light, the lack of actual braking surface means that they wear really fast. I also tried some A2Z dots which were a bit better, but they also wore pretty fast as the waves at the top get worn faster and the braking surface gets milled into a v shape.

I decided that mega weenieism is probably pointless for anything other than a 'cross or XC race bike. And I'm now running Shimano RT86 ice-tech. The braking is also much smoother than the 3rd-party rotors.

The Sram centreline rotors are supposed to be pretty good though, and for a 'best bike' I would probably get those Centreline X ones.

_________________
Snacking on carrot sticks - Where did it all go so wrong?
-
Finsbury Park CC


Top
   
PostPosted: Mon May 08, 2017 11:14 am 
Offline
Administrator
User avatar

Joined: Sat Jun 19, 2004 11:08 am
Posts: 7016
Location: Urbana, Illinois
The RT 56 according to my Google search are 6 bolt and the OP never mentioned Centerlock. If they are 6 bolt then Ashima or KCNC get my vote.

_________________
RESIDENT GRUMPY OLD MAN.


Top
   
PostPosted: Mon May 08, 2017 11:20 am 
Offline

Joined: Thu Jan 03, 2013 5:02 pm
Posts: 223
I went from Ashima 140 to Avid HSX 160 and the difference is night and day, far better feel. I think they're discontinued but you can find them in a few places, saying that they're somewhat similar to the Centreline.


Top
   
PostPosted: Mon May 08, 2017 2:35 pm 
Offline

Joined: Fri Feb 18, 2005 6:50 pm
Posts: 211
Location: Wilmington, DE
stormur wrote:
Have limited experience ( Magura Sl 6b, Shimano 99 CL, Sram Centerline CL ) but my hoice was and will be Sram Centerline. Best braking, relatively light, impossible to overheat. And sit most far from frame ( tight tolerance ) from all mentioned.


What is the weight of a 140mm and 160mm SRAM Centerline rotor (Avid HSX, centerlock preferably)? The only quoted weight I could find was heavier than a Shimano RT99 rotor. Perhaps I'm just not looking in the right places. I'd be happy to save some rotor weight so long as I'm not giving up much, if any, braking performance and I had not seen these rotors previously. But what's up with no included lock ring?


Top
   
Posted: Mon May 08, 2017 2:35 pm 


Top
   
 
PostPosted: Tue May 09, 2017 2:24 pm 
Offline
User avatar

Joined: Wed Feb 25, 2009 7:58 pm
Posts: 344
Location: Lancaster, UK
I run the Hope lightweights. They are six bolt though, if that's relevant.

The centrelines are good too. My mtb has them in std. metal. The spider ones will be lighter but they are quite expensive, I seem to recall.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 69 posts ]  Go to page 1 2 3 4 5 Next

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Attachment(s) 140 front disc rotor

[ Go to page: 1 2 3 4 ]

in Road

ooo

52

2368

Mon Nov 13, 2017 2:48 pm

uraz View the latest post

There are no new unread posts for this topic. Is disc rotor size frame-specific?

in Road

Miller

9

920

Wed May 24, 2017 8:35 am

lwk View the latest post

There are no new unread posts for this topic. Attachment(s) Why is no one using disc brakes in the tour?

[ Go to page: 19 10 11 12 13 ]

in Road

gceniza

186

16781

Sat Jul 22, 2017 8:29 am

lobuxracer View the latest post

There are no new unread posts for this topic. Disc brakes : new pads = brake rub??

in Road

Delorre

9

960

Mon Oct 23, 2017 11:36 am

CBJ View the latest post

There are no new unread posts for this topic. Attachment(s) In a 2017 ww world - what is the weight penalty of running disc brakes?

[ Go to page: 1 2 ]

in Road

alcatraz

17

2819

Sat Mar 18, 2017 5:53 pm

nemeseri View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: alistaird, Bing [Bot], corky, emcardle, Ghost234, Google Adsense [Bot], Swano and 41 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