Page 1 of 3

Front Brake Calipers

Posted: Mon Dec 06, 2004 5:55 pm
by LapTraffic
What types of brakes work on these dales? I have had a long standing problem after a wreck with my front brakes. The cylinder keeps getting pushed in while riding requiring the brakes to be pumped back up before being able to stop the bike.

Need to replace the caliper in question, but if there is a better route to go as far as calipers go Id like to know. Hunting on ebay now smile.gif

Posted: Mon Dec 06, 2004 6:30 pm
by wistech
Check for a warped rotor or loose wheel bearings. Your spindle may be bent also. I have an extra of everything you might need .

Posted: Mon Dec 06, 2004 6:47 pm
by LapTraffic
I will check, I had a guy hit my in the right wheel pretty hard.. Replaced the rotor and the wheel spind free in there, not rubbing on the caliper at all.

When the bike is sitting and the brakes are bled there is positive lever pressure. Once you start riding and grab for the front brakes, they are not there. You have to pump the lever to get them back Then they are okay until the you hit a good bump or something, then gone again.

It's not air in the line either as the brakes are throrughly bled, and air is not being intruduced through a crack that I can tell. If you dont ride the bike you have good front brakes as many times as you want to test them. It's only under riding that they start fade.

PM a price on what you want for spindles calipers and rotors. Both sides.

Thanks Wistech

Posted: Mon Dec 06, 2004 9:08 pm
by jfarrar
the metal bracket holding your caliper is probably bent.i have had this happen about 6 times this year.could be the rotor to but it is usually the bracket or the pins the caliper slides on most likely.when you check the rotor make sure you pump the brakes a few times before you spin the wheel to see if it is binding.once it pusches the piston back in it is hard to tell.i been wondering if the dual piston250r caliper will work without to much mod.i barely have enough stopping power with mine.

Posted: Mon Dec 06, 2004 9:18 pm
by LapTraffic
if the mounting bracket that holds the calipe ron is bent, and I pump up the brakes before spinning the wheel, what will I see? Will the caliper move to grab onto the rotor? How will I tell what the faulty component is?

It's not the rotor, I replaced that already.

Same on the stopping power, it's pretty anemic.

Let me know on the 250r rotor. do the mounting holes line up?

Posted: Mon Dec 06, 2004 9:23 pm
by jfarrar
if those pins on the bracket are bent the caliper will move when you pump the brakes.it will move quite a bit.look at those pins closely.they bend back easily.

Posted: Mon Dec 06, 2004 9:29 pm
by LapTraffic
So if the pins are bent I can bend them back with good results?

Posted: Mon Dec 06, 2004 9:51 pm
by jfarrar
i've done it several times to each caliper no probs.i was taking them apart and straightening the pin and after a while i just grabbed ahold of the caliper with some chanel locks and brought er' back around.rocks jamming inbetween the wheel is waht was bending mine

Posted: Mon Dec 06, 2004 10:05 pm
by LapTraffic
and you were seeing the same kind of thing I am? where you would have to pump the brakes up to get them to wrok after riding a bit?

Posted: Mon Dec 06, 2004 10:17 pm
by iceracer17
It seems when i switched the front end around with the moto stuff i could never get them bled out.Then after a week or so they would mysteriously be hard as a rock after just sitting in the garage.