Mountain Biking - hayes sole VS hayes Hfx-9
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06-11-05, 01:36 PM
I know they are both hydraulic and one is a one piece master cylinder the other 2 but performance wise is there a noticeable difference on the trails?
06-11-05, 10:08 PM
The hayes sole caliper has only one moving piston; the inboard pad is fixed, similar to a mechanical disc brake.
The hayes nine has a caliper with two moving pistons, and it is more powerful.
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