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ISO Disk brake Standard..............

7807 Views 2 Replies 2 Participants Last post by  mtnbiker4life
if there is such thing as one. If you can imagine the plane that is defined by the surface that the front disk bolts to the hub and it's location between the inside of the dropout of the front fork. Is there a standard that most hub manufactures follow.

Okay here goes, Chris King makes two different disk hubs the new ISO style and the orginial Disco-Tech hubs now called Universal Disk Hubs. The ISO style is the set that is not fitting. I have to machine .035" off my adapter today just so the adapter didn't hit the rotor. I have a set of both.......and my problem is I have to readjust the disk caliper (Avid BB-7) everytime I switch wheels.

Here is my set up: 2004 X-5 with Float RLC w/TALAS. 185 mm front disk rotor.
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mtnbiker4life said:
if there is such thing as one. If you can imagine the plane that is defined by the surface that the front disk bolts to the hub and it's location between the inside of the dropout of the front fork. Is there a standard that most hub manufactures follow.

Okay here goes, Chris King makes two different disk hubs the new ISO style and the orginial Disco-Tech hubs now called Universal Disk Hubs. The ISO style is the set that is not fitting. I have to machine .035" off my adapter today just so the adapter didn't hit the rotor. I have a set of both.......and my problem is I have to readjust the disk caliper (Avid BB-7) everytime I switch wheels.

Here is my set up: 2004 X-5 with Float RLC w/TALAS. 185 mm front disk rotor.
Go to the Hayes Disc Brake web site and find the downloads section, there are drawings of the International Standard for mtb disc brakes. Magura has the drawings for download too. Either one will give you the information you need to see what the problem is.

Monte
Thanks......I found the spec for 10 mm axle hubs the spacing from the axle flange to the brake rotor surface is .394 (10mm). I just verified all my disk hubs two pair King ISO and one pair King Universal and they're roughtly the same. The big difference is the distance between the caliper adapter when using a 160 mm rotor and 180 mm. So that tells me that the 2003 Fox Float RLC w/talas is not really set up for disks bigger then 160 mm. Am I thinking straight here of have I had one to many New Castles? :nono:

I just didn't think that jumping up to the larger rotor made that much difference.......oh well there goes the extra 20% braking action.
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