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  [ 12 posts ] 
Author Message
PostPosted: Wed Nov 13, 2013 11:02 am 
Offline

Joined: Mon Dec 05, 2011 4:27 pm
Posts: 41
Location: Antwerp, Belgium
Hi,


I do consider racing the Grand Raid in Swiss, wich contains 5060 pos alti meters, so every gram might count………. But, regarding the alti meters, I will need proper brakes, since I will use them hard over that day.
At this moment, I do have the 2012 Shimano XTR BR-M985, race – 160mm floating discs.

Would you guys recommend me some other brakes, weight wise and braking power ?

Anyone with tire recommendations for this event ?


Thanks in advance,
Ced


Top
 Profile  
 
Posted: Wed Nov 13, 2013 11:02 am 


Top
  
 
PostPosted: Wed Nov 13, 2013 12:27 pm 
Offline
User avatar

Joined: Sun Dec 05, 2010 12:00 pm
Posts: 566
Location: Aarhus, Denmark
Your brakes will do just fine. Experiment with some different pad compounds and see what you prefer.

_________________
"Stay cool and try to survive" A. Klier to the other members of the Garmin classics squad the night before P-R.


Top
 Profile  
 
PostPosted: Wed Nov 13, 2013 2:12 pm 
Offline

Joined: Fri May 02, 2008 5:39 pm
Posts: 499
Location: Tropical Wales
Yep, wouldn't be looking to move away from XTR. Not that heavy and function superbly especially given the elevation changes you expect.


Top
 Profile  
 
PostPosted: Wed Nov 13, 2013 3:15 pm 
Offline

Joined: Fri May 25, 2007 6:43 pm
Posts: 1858
Depending on the descending, length/gradient etc. i *might* go up a size on the front disc.

Doesn't even have to be a permanent fit, i've experimented with running 160/140, 160/160 and 180/160 and it's only 10 minutes to swap both ends and tweak. (Given that you have the same disc and adaptor type of course)


Top
 Profile  
 
PostPosted: Wed Nov 13, 2013 8:06 pm 
Offline

Joined: Mon Dec 05, 2011 4:27 pm
Posts: 41
Location: Antwerp, Belgium
Hi, tx for the idea's !

@ Mattr, that might be an idea to consider ....... !


Top
 Profile  
 
PostPosted: Wed Nov 13, 2013 8:56 pm 
Offline

Joined: Tue Oct 15, 2013 7:58 pm
Posts: 6
Make sure you go for a 180 front!, i did the grand raid cristalp 3 times, and there are some long downhill parts with the brakes full on.
160 will be too small i guess. Or your body weight is 50kg's, than a 160 will do


Top
 Profile  
 
PostPosted: Wed Nov 13, 2013 10:07 pm 
Offline

Joined: Mon Dec 05, 2011 4:27 pm
Posts: 41
Location: Antwerp, Belgium
:o))))

nope, 70kg ......... on 1m82

any recommendations on tyre choice for Grand Raid ?


Top
 Profile  
 
PostPosted: Thu Nov 14, 2013 10:12 am 
Offline
User avatar

Joined: Thu Sep 11, 2008 1:24 pm
Posts: 64
Location: Ireland
I have done Grand Raid and Salzkammergut 200km this year with R1 (swissstop organic pads) 160/140mm rotor, Pythons 2.0".
I felt good on downhills, but, next time I will take something wider, like Maxxis Ikon 2.2 for stability :)


Top
 Profile  
 
PostPosted: Sun Nov 24, 2013 8:02 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1222
Location: Glermsford, Suffolk U.K
I have tried 160mm on the front for XC racing in the flats of East anglia and got brake fade with Hope mono mini's and disc with alu carrier. Now granted brake tech has moved on but I would not want to run 160mm rotors on the front for serious fast descents that are long. 180mm rotors are must and would be fine with your setup.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
PostPosted: Mon Nov 25, 2013 5:23 am 
Offline

Joined: Wed Feb 02, 2011 3:48 am
Posts: 973
Ced wrote:
At this moment, I do have the 2012 Shimano XTR BR-M985, race – 160mm floating discs.

What is the actual disc that you are using? This can make a big difference. For example, a 160mm Ice Tech disc will probably provide better performance than most Swiss cheese'd 180mm rotors. If you're not already using something like the Shimano disc, keeping your already good brakes and swapping to a different disc of the same size (with a pad change to suit I guess) seems to be an easy and cheap way of getting better performance. It's easy to switch back to a light disc for flat rides too, especially if someone has more than one set of wheels.


Top
 Profile  
 
PostPosted: Mon Nov 25, 2013 8:21 am 
Offline

Joined: Mon Dec 05, 2011 4:27 pm
Posts: 41
Location: Antwerp, Belgium
Hi,


Worth to try, but the GR I will defenitly need the 180mm disc.
I was in that area this summer with my 2x 160mm Ice tech rotors on green Swiss top pads.........

Especially the big amount of descending on 1 day without the opportunity to swap brake pads ;o(


Tx for tips and idea's


Top
 Profile  
 
Posted: Mon Nov 25, 2013 8:21 am 


Top
  
 
PostPosted: Mon Nov 25, 2013 11:53 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1222
Location: Glermsford, Suffolk U.K
It is not just the Ice tech rotors but the centre lock mount that improves heat dissapation.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ] 


Who is online

Users browsing this forum: Google [Bot] and 8 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. Good, light weight 29er brakes

in MTB

muntos

5

638

Thu Jun 19, 2014 10:21 am

cws196 View the latest post

There are no new unread posts for this topic. Tune Speedneedle Marathon Comfortability

in MTB

nrsnow

5

640

Tue Feb 11, 2014 10:17 pm

the_marsbar View the latest post

There are no new unread posts for this topic. Cargo trailer for cross races

in Cyclocross / Touring

power1369

1

370

Mon Dec 02, 2013 6:45 pm

Briscoelab View the latest post

There are no new unread posts for this topic. Looking at new brakes EE Brakes or GSL Micros

[ Go to page: 1, 2 ]

in Road

G6612

17

1148

Tue Jun 24, 2014 3:38 pm

G6612 View the latest post

There are no new unread posts for this topic. 29er section

in MTB

jbbikerider

2

668

Sat Oct 05, 2013 5:06 am

jooo View the latest post


It is currently Wed Jul 23, 2014 1:12 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