Xtreme Products offers a Front Disc Brake Conversion System for the Honda 4x4's that is with out a doubt the best system on the market. The system uses a Hayes floating brake caliper, the same design used on all OEM cars and trucks.
The Xtreme Products system comes stock with "sintered bronze" brake pads, and the brake rotor is a full ¼ inch thick, which significantly enhances the life and durability of the system. Xtreme Products' system allows the brakes to work on the first pull every time.
Installation is easy, requiring only simple hand tools. Easy to follow instructions are included as is all hardware. If hitting a tree or your buddy's bike to stop is getting old, then step up and get the stopping power you need with an Xtreme Products Disc Brake Conversion System.
Absolutely the BEST kit on the market!! 
Front Disc Conversion Kit Features:
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Floating Caliper Design
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Brakes work on the first pull, every time
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Simple hand tool installation - no press work
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New crush washers furnished for brake hoses
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Sintered Bronze brake pads included
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Non-vented rotor helps prevent damaging mud and debris from being pulled through caliper
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Fits Honda applications:
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TRX 350 2000-2004
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TRX 400 AT 2004-2005
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TRX 400 1991-1993
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TRX 450 1998-2004
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TRX 500 2002-2004
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TRX 650 2003-2004
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P/N XTHDB100
