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Custom Motorcycles Forum / Custom Motorcycles Forum / Custom Choppers / Other Parts and Discussion / BRAKES-Proportioning valves

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Posted: 31 Mar 2007 00:41 Last Edited By: doc
	Registered User Currently Offline	Posts: 1 Join Date: Mar 2007
Group...I need some help understanding and applying a front brake proportioning valve. I have a Wildwood proportioning valve that is adjustable from 50/50 to 30/70 if necessary. Any info, feed-back or help in applying it would be appreciated. I have MID CONTROLS on this new CHOPPER and built them w/a 3/4" bore so the extra DOT 5 fluid along with the #2 high pressure lines would allow for using one rear pedal to operate both 360 brakes. I build about 12-15 high end customs a year. Help PLEASE??? Doc in MN

Posted: 31 Mar 2007 01:04
	Registered User Currently Offline	Posts: 102 Join Date: Feb 2007
Although not familiar with the valve model you talk about, normally the ratio is a 30/70, and usually set at the front brake not the rear unless you have them on both.

Posted: 17 May 2007 06:37
	Registered User Currently Offline	Posts: 56 Join Date: Apr 2007
A friend of mine suggested the same ratio that paperclip mentioned. Basically he echoed what was in the previous post. Just thought you'd like to know that more than one person gave the same advice.

Posted: 03 Nov 2007 04:59
	Registered User Currently Offline	Posts: 1 Join Date: Nov 2007
I'm wondering if you ever installed that Wildwood valve? I've been using it for about 30 years. I've one arm and have both breaks on the pedal. From my own experience I know that installing them require you to bleed the breaks like crazy. Since all bikes are different it's best to start out at a 50-50 split then work your way towards 70-30 gradually until you find something comfortable. The thing you need to be careful about is setting the bias so much towards the front wheel that hard braking locks up the front wheel. I've used them on 475-500 lbs UJMs, like 650 or 1000 cc street bikes and the valve worked fine. About 4 years ago I bought a 1000cc Kawasaki police bike, 600 lbs and it was OK. Now I've a Kawasaki Voyager, their full dresser in line 4 cylinder and at about 750 lbs the breaks are only adequate. I'm currently looking for an upgrade of the master cylinder in the hopes that the break response will improve. If you know of any, please feel free to share your thoughts.

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