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GT_ATB32
11-08-03, 09:15 PM
Any one know how to mount disc brakes on the rear of a hardtail?
Do you need brackets or do you have to have something welded to your frame?
HELP ME!!!!!!!!
BikerRyan
11-08-03, 09:52 PM
Technically you need disc mounts on the frame similar to the ones that are on your fork leg. If you do not have these then you can buy an adapter that bolts to the old brake post and provides a mount for the disc brake caliper on the chainstay. You can find more info at www.braketherapy.com
-Ryan
nikolajbaer
11-13-03, 07:34 AM
A Disc brake exerts a good deal of torque on the frame, so welding your own is not the best idea unless you are a top-notch welder.
If your bike is a mountain bike, you may want to look at getting a front fork that is disc-compatible (most recent ones are). If you have a road bike, you can find cyclocross forks with disc mounts on them. Make sure to get the appropriate lever/caliper combination as well; hydraulics need entirely new levers, and mechanicals are created for certain pull-lengths (Avid has both road and V-brake lever compatible calipers). Remember, you also need wheels with disc compatible hubs, as this is where the rotor is mounted.
As for the rear brake, quite frankly disc brakes are far less useful, as the rear usually locks up pretty quick when braking, and disc brake modulation is not really necessary. Plus this requires a disc mount on your frame.
On my freeride bike I have a 203mm Avid mechancial in the front, and and Avid 7 V-brake in the rear, because my frame does not have disc mounts.