Hydrolic brakes failure question...

[spookydave]

Originally Posted by Chewyeti

here is a thought for mental masturbation......


how old is the CAN/BOTTLE of fluid you used?
brake fluid is amphoteric (sp?) - meaning it sucks up moisture from the atmosphere. So it can 'go bad' on your shelf if its old and not a wicked awesome seal......


just a thought

And a very good thought at that. Hey, what kind of car are you racing?

[Schecky]

Could it be that your pads are getting contaminated with hair that's rubbed off by the back tire when you're behind the saddle?





You can shoot me later...

[RacinJason]

Lighten up on the brakes ha ha J/k sounds you need a larger rotor. I have been testing brakes. The code brakes work great juicy 7's work great. The hope brakes are amazing. The Hayes are not so great. Not much modulation heat up and fade easy.

Originally Posted by JoeTruth

[SIZE=3]I have a set of Hayes Hydro's that I've had on my bike for about 5 years now. A few months back, I experienced total hydrolic brake failure under extreme use coming down a 3/4 mile section of a very steep descent. Once my hydro's cooled (1-2 minutes), I pumped the levers and re-gained full power and finished ride. I realize this can happen when the oil breaks down and gets very hot so I took my bike in and had F&R brakes re-bled with new oil and replaced F&R pads along with a new rotor for the rear (slightly bent).
Well, I happen to do that same ride last week and the same exact thing happened again. This is very dangerous when you're coming down a consistently steep section where it's virtually impossible to stop and the only thing you can do is lay the bike down. If I descend normal type of single tracks (El Prieto, Winter Creek, etc.), I never have such problems. Only on steep fire break type of descents where you're consistently on your brakes for a sustained period. What gives?

[/SIZE]

The best bang for the buck I think is the Juicy 5 Light work well . Not all the extra bling but who cares.

Originally Posted by JoeTruth

[SIZE=3]I have a set of Hayes Hydro's that I've had on my bike for about 5 years now. A few months back, I experienced total hydrolic brake failure under extreme use coming down a 3/4 mile section of a very steep descent. Once my hydro's cooled (1-2 minutes), I pumped the levers and re-gained full power and finished ride. I realize this can happen when the oil breaks down and gets very hot so I took my bike in and had F&R brakes re-bled with new oil and replaced F&R pads along with a new rotor for the rear (slightly bent).
Well, I happen to do that same ride last week and the same exact thing happened again. This is very dangerous when you're coming down a consistently steep section where it's virtually impossible to stop and the only thing you can do is lay the bike down. If I descend normal type of single tracks (El Prieto, Winter Creek, etc.), I never have such problems. Only on steep fire break type of descents where you're consistently on your brakes for a sustained period. What gives?

[/SIZE]

[jcampbell]

Funny, try oiling the rotor to clean it up!

[SAR_boats]

Get a set of Magura Louise FRs. I have them on my SS and I ride the brakes way too much but I've never had a problem with fade. Plus they use mineral oil instead of DOT brake fluid so you don't have to worry about water absorbtion.

[JoeTruth]

Originally Posted by jcampbell

I have ridden all of mammoth on 6 in rotors and cheap hayes, learn to use your front brake! Sure, if I try bombing kamakazi or something I am going to sponge out and get scared, but that is where larger rotors would help. Learn to not ride your brakes, and use he front alot more. It will keeep you in control.
3/4 of a mile downhill is not that long, I really don't think you can heat your brakes up to the point of boiling the fluid.

I love the way some automatically assume I don't know how to use my brakes and the balancing of them. I must admit, That's pretty amusing.

Bombing Kamikaze style? Hardly! The speed of my descent is very slow and deliberate. You have no choice but to drop down slow. Butt hanging over the back tire and you have to be on your brakes. Otherwise, you'll eat shiat!

Yes, you must be right though. 3/4 of a mile is not that long and my brakes never over heated and gave out. Twas all a figment of my imagination!

[Chewyeti]

Originally Posted by spookydave

And a very good thought at that. Hey, what kind of car are you racing?

Have a little autocross/track hot rod which is semi street legal still.... porsche 914 is what my fun ride is....

[dhshuttlemonkey]

Same exact thing happened with my Mags. Sounds like your master cylinder went bad. Mine were a yr old so Hayes repalced the whole brake assembly.

[jcampbell]

Joe, don't be an jack/\ss. Think of it this way, figure that the pro's ride the same stuff we do. Do you think Brian Lopes would have his brake fade out like you mentioned on that trail? I think not.

Does he have better stuff than us, maybe... but not in the brake department. Suspension Yes, but the brakes are probably the same thing we can buy. So it leaves you with either rider technique, or bad setup and parts. You said you just took your bike in, and since your obviously saying its not rider technique, you probably blame your shop.

Its like anything, a simple cause could be the alignment of the caliper or its piston movement. Might just have some bad parts.

Wasn't trying to be rude but if your riding a trail that others always ride, why don't they all have the same problem you do? Maybe you should try oiling down your rotors... it works wonders in taking care of problems! We only have two days left this week till the weekend, be nice.

[JoeTruth]

Originally Posted by jcampbell

Joe, don't be an jack/\ss.
...Wasn't trying to be rude...
We only have two days left this week till the weekend, be nice.

[SIZE=3]You gave be some good mechanical advise and I appreciate that, thank you. Obviously, comparing Brian Lopes' braking ability to mine would be ridiculous. Of course he's a better braker then I will ever be. I never claimed to be a master braker. I just said I know how to brake.

I can't help but be a little puzzled at your oxymoron remarks. You first call me a "jackass" then you say you weren't trying to be rude and you closed it by telling me to be nice. You're all over the place.
I am nice, for the record.

[/SIZE]

[spookydave]

Lopes prolly wouldn't even use his brakes. lol
Mine used to fade up in Big Bear on Poop er logchute. I always had trouble getting around those loose silty turns up top so I'd be all over the brakes. By the time I'd get to that wooded section I was Fred Flinstoneing it.

Originally Posted by Chewyeti

Have a little autocross/track hot rod which is semi street legal still.... porsche 914 is what my fun ride is....

I make custom hoses, hose fittings and the like for the motorsports market. Even DOT stainless braided brake hoses. So the next time you wad it up keep me in mind.

[Chewyeti]

Originally Posted by spookydave

I make custom hoses, hose fittings and the like for the motorsports market. Even DOT stainless braided brake hoses. So the next time you wad it up keep me in mind.

BAH! where where you when i was building my SS braided oil lines for a front oil cooler setup....? lol. good to know we have a hose man in the house!

[spookydave]

Originally Posted by jcampbell

Wasn't trying to be rude but if your riding a trail that others always ride, why don't they all have the same problem you do? Maybe you should try oiling down your rotors... it works wonders in taking care of problems! We only have two days left this week till the weekend, be nice.

for some reason this trail sounds like one that Fight Club rules apply to. (pssss, let me know when and where and we see if my Hayes fade too.)
As far as oiling the rotors go. My Rissie fork used to do a dandy job of that. It was like an auto oiler. lol Dang thing would not stop but the pads would last years.

[spookydave]

Originally Posted by Chewyeti

BAH! where where you when i was building my SS braided oil lines for a front oil cooler setup....? lol. good to know we have a hose man in the house!

I was right here. Slave to the cnc most of days.
Check me out for next time. I'll save you some coin for sure.

Sweet Performance Products, Inc
461 Industrial Way
Placentia, CA 92870
714 223 9322
714 223 9954 fax
www.sweetperformance.com

[jcampbell]

Originally Posted by spookydave

for some reason this trail sounds like one that Fight Club rules apply to. (pssss, let me know when and where and we see if my Hayes fade too.)
As far as oiling the rotors go. My Rissie fork used to do a dandy job of that. It was like an auto oiler. lol Dang thing would not stop but the pads would last years.

Hilarious... been there before with my first ever Judy fork back in the day. Rim brakes suck with oil on the rim.

[spookydave]

so do Hayes purples with 8" rotors.
So does sending your fork back to Rissie and having them do everything I did not ask for and still not replace that seal.

I showed them though, I swaped fork legs left to right so the rotor stayed dry. Pretty ghetto hu?