|   New XTR disc brakes with Chris King or Crossmax hubs? | wayneinbangkok
Dec 7, 2002 2:48 AM | | Does anyone know if the new XTR disc brakes will work with Chris King or Crossmax hubs? It seems as though they will only work with the new XTR hubs.
Thanks ... Wayne |
| Shimano says they fit with any ISO 2000 hub and the XT rotor. | Bianchi4Me
Dec 7, 2002 7:02 AM | | Shimano notes that the 2003 XTR brake calipers are compatible with their XT disc hubs and rotors. XT hubs are ISO 2000 standard, so therefore any other ISO 2000 standard hub should also work if you use an XT rotor. |
| what is unique about theXT rotor? thanks nm | sprockets
Dec 7, 2002 10:32 AM | | nm |
| It makes money for Shimano, and not all rotors are standard. | Bianchi4Me
Dec 7, 2002 2:03 PM | | I don't think there is anything magic about XT in particular, but obviously Shimano would prefer you use their rotor. Plus, the ISO 2000 standard only applies to the spacing of the rotor in relation to the hub and it's mounting holes. There is no single standardized shape, diameter, and thickness for rotors. Rather than getting into a long list of what rotors will work and what rotors may not, they just say "Buy XT". |
| re: New XTR disc brakes with Chris King or Crossmax hubs? | mcubed91
Dec 7, 2002 10:21 AM | | I got my 1999 Crossmax to run the 03 XTR disc calipers. I don't know what spacing standards Mavic used for the disc adapters, but I had to put the rear on the front and front on the rear. I think I was lucky it fit right on. I was sweating when I took the Crossmax off my Cannondale on stuck them on my Superlight and the clearance didn't look promising. I only had to put 2 spacers, supplied with the calipers and now they are a perfect fit!
I am wondering about other hubs, 03 XTR's or Chris King's hubs... will they fit? I am using the Shimano RT75 disc... and now I have 2 03 XTR rotors sitting around. |
| The way I heard it | www.mtnpedaler.com
Dec 7, 2002 9:37 PM | | was that Shimano has 2 rotors. One for the splined XTR hubs and one 6 bolt IS. If you want the lighter setup you have to go with the XTR. I could be wrong but that's what I was told and that's the way it's listed in my distributor catalogs. |
| Need XTR hubs for weight advantages | wayneinbangkok
Dec 8, 2002 4:53 AM | | One of the selling points is the light weight of the brakes. I guess if I want to take full advantage I will want to use the XTR rotors, which means using the XTR hubs.
This is a bummer.
Thanks ... Wayne |
| No! XTR rotor is a whopping ONE GRAM lighter than XT rotor. | Bianchi4Me
Dec 9, 2002 6:59 AM | | The much-hyped XTR rotor, with it's complicated aluminum/steel rivited construction and lockring attachement, turns out to be the same as XT, and heavier than some stainless steel rotors with steel mounting bolts. The lockring enabled Shimano to make the XTR hubs lighter by removing the need to have 6 reinforced bolt mounting holes. The 160mm XTR rotor itself with lockring weighs in at 139g according to Shimano. Shimano lists the weight of an XT rotor at 140g w/ bolts. One gram difference!
By comparison, a 160mm Formula B4 rotor with it's 6 steel mounting bolts is 121g. If you are interested in light disc brakes, the Formula B4-SL and Magura Marta SL both slap XTR silly in the weight department. You may want to ask for some more information regarding these systems on the brake board. |
| No! XTR rotor is a whopping ONE GRAM lighter than XT rotor. | wayneinbangkok
Dec 9, 2002 7:35 AM | | Thanks for the clarity. Although I want my brakes to be fairly light, I'm also looking for performance. The XTR disc brakes received stellar performance reviews whereas the Marta's don't fare so well in the reviews section of this site. They were rated fairly well in a review of the Id I read in MBA.
Cheers,
Wayne |
| Have you checked out Hope? | www.mtnpedaler.com
Dec 10, 2002 8:39 AM | | I'm not real into the light weight thing. I mean I like light stuff but I don't gram count (I leave that to my customers) so I don't know what the Hopes weigh. I do know they work pretty good. |
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