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PostPosted: Mon May 30, 2005 9:59 pm 
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i want to change my xtr 140g rotors with something lighter. any idea? thanks


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Posted: Mon May 30, 2005 9:59 pm 


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PostPosted: Mon May 30, 2005 11:11 pm 
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Location: Melbourne, Australia
hope two-piece 6 bolt rotors with dt centrelock to 6 bolt adapters. should weigh 120grams for the setup. that's the lightest i know of.

cya, john.


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PostPosted: Sat Jun 04, 2005 8:42 am 
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try this one


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PostPosted: Sat Jun 04, 2005 10:34 am 
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Location: France
Composite World requests a center lock rotor. You must add the weight of the DT adaptator !

Light center lock rotors does not exist ; there is only Shimano XTR. You must use an adaptator but I ognore its weight.

I use floating Hope rotors which weights only 87 grams, and there are full usable because of their steel rotor. But this is the 6 hole model, you will have to add the DT adaptator.


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Rotor floating 160 mm avant.JPG
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PostPosted: Sat Jun 04, 2005 2:27 pm 
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thanks for the help. i got enough with those superlightweight stuff, i wont go with stans. i am also thinking about hope. it seems like they will soon be everywhere. but if I use it with DT adapter, it will be 110, which is only 30g lighter. 60g of save for a lot of money. i think i will wait for my rotors to be worn or a light centerlock rotor. which one will be sooner? :)

besides, more part : more problem and less stiffness


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PostPosted: Sat Jun 04, 2005 4:03 pm 
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Location: Wales, UK
I think hope plans to bring out centrelock rotors for 2006.


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PostPosted: Mon May 30, 2011 6:57 am 
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Its been a few years, any development?


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PostPosted: Mon May 30, 2011 1:29 pm 
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Newest XTR rotors are a bit lighter than previously as they now use a steel/aluminum/steel sandwich for the brake surface, but still weigh in at a relatively hefty 126 g. In fairness, CL hubs are lighter than their 6 hole equivalent (15 g in the case of DT 240s, claimed weights). In spite of this, the lightest option is still an adapter with an ultralight disc, however the XTR may be better in terms of heat dissipation and durability. So do as you see fit, I like those XTR rotors for peace of mind.


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PostPosted: Tue May 31, 2011 5:13 pm 
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Location: Malmö, Sweden
Custom job from Mattias (EP) but pretty light and ÜBER cool:

Image

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PostPosted: Thu Jun 02, 2011 2:42 am 
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Location: Surrey B.C. Canada
Mads wins.

I have been looking at a lighter CL set-up. The best that I can see at this time would be to get the KCNC center lock adaptor and match it up with the KCNC disc.

KCNC 160mm disc 73g
KCNC center lock adaptor 29/30g

102-103g total weight.

Still not as good as Mads modified version.

However, I would like to know the weight of the XTR center lock part without the bolts and disc itself. If this was heavier than say the KCNC adaptor then maybe Mattias could do something lighter using the adaptors.

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PostPosted: Thu Jun 02, 2011 3:56 am 
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There is a guy who could make 65g centerlock rotors out of Ti with aluminum spider. I think it was only a project, because of lack of interest.

Chris.

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PostPosted: Thu Jun 02, 2011 6:52 pm 
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Location: Norway, Oslo
Those Hellöre looks awesome! Light weight, but the looks of the XTR's. Me likey :mrgreen:

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PostPosted: Tue Jun 07, 2011 2:28 pm 
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Location: Sunny UK
those look XTR carrier - is the brake disc thinner in order to get the weight down? and/or made of soemting other than steel?


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PostPosted: Tue Jun 07, 2011 2:35 pm 
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Location: Insjön, SWEDEN
One pro rider for Giant Rabobank asked me to make lighter brakediscs but to retain original look of XTR ,he´s sponsored by Shimano.

So I cutted out the disc part from 6al-4v titanium and used aluminum countersunk screws.

No more mods other than that, braking performance a bit lower than original but lighter.

I´ve tested some titanium discs in the current 2 years of development, all of them does have a bit lower friction compared to steel/stainless steel rotors.

But the upside is less weight.

Haven´t tried any coating yet.

/Mattias Hellöre.

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PostPosted: Tue Jun 07, 2011 2:38 pm 
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Location: Insjön, SWEDEN
krzysiekmz wrote:
There is a guy who could make 65g centerlock rotors out of Ti with aluminum spider. I think it was only a project, because of lack of interest.

Chris.


It´s Tehan at MTBR.com you are talking about?, he seems have abandon the project, maybe of high manufacturing costs, the spline interface is not easy to do in a normal machine shop.

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Posted: Tue Jun 07, 2011 2:38 pm 


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