Planet Minis

jsmith811

scarmack121

how to make pics smaller? geeze lol

edgeridercr15

Whats the question?>

jsmith811

Ok, the photo is a little large... I kept it that way so the Rear brake could be seen, so far everything is good with the bike, except the rear disc locks up after about 5-10 laps of easy riding on a track.. If I bleed it slightly its fine for another 10 laps..

Is it really hard to get it right?
BBR says the clevis needs adjusted so the brake doesn't hit the foot peg mount, but the adjustment is all the way up already..

Is this a common problem with the BBR rear disc kit ?
I have never seen a disc brake lock up like this.. There is no fluid loss, no leaks in the system, and its the newer type BBR disc kit.

I have tried flushing the system and bleeding the brakes, using Dot 4 fluid, but it does the same thing, brake works fine, have about 1.5 " of pedal travel, but after a few laps the rear brake closes up.. as if it has air in the system and can't release.

yz250f rider

damn that sucks idk but SICK bike

jsmith811

Thanks, the bike is great, but the brake issue is very irritating.

sxfracer

are you draggin it or keeping pressure on it when you ride. maybe your heat seizing your rear break. have done this on big bikes a couple times.

50$Pit

You need to adjust the deal that goes from your pedal into the master. It is too low causing it to be too tight so when your brakes heat up just a bit the fluid is expanding causing it to lock up, my bike did the same thing with the BBR brakes. Takes some fiddling with but you willl get it dialed.

To be honest it took me about 5 times to get it right so I still have good pedal response without it doing it.

slowracer

50$pit is right,

jsmith811

I'm almost certain the adjustment from pedal into the bottom of the master cylinder is all the way in.. but I'll check again. That's what bbr said also, but I don't think I have any adjustment left there.

CJsDad

Try swapping out the brake fluid. Some of the cheaper fluids expand from the heat and cause the brakes to drag.

50madness

And where would we find a bracket to use the KX65 rear caliper?

jsmith811

After three lockups.. I tried Bel-Ray Dot4 fluid, and the same thing happened... Not sure I removed 100% of the old fluid, but brake locks up TIGHT.. not just dragging, it stops. Not sure what to do now, with No adjustment on the clevis, and new brake fluid ????? I'll try to post some close up photos & see if anyone sees anything out of the ordinary. Maybe a new brake line would help? A local person suggested the brake line maybe collapsing internally and not allowing the fluid to flow, thereby causing the lockup?? Maybe I'll call mythbusters..

aedwards07

Send a message to Sikway.He can point you in the right direction.

rlm996

Super bad ass bike man!!!! Can I ask how much you gave for it?

jsmith811

Under 4,500

korchak10x

mabey your rotor is a little tweaked causing your fluid to heat up faster?
also be sure you arnt over filling the reservoir

50$Pit

jsmith where are you located?

i swapped my fluid out to galfer high temp and it did the same thing until I got it right.

its your adjustment. try screwing in the entire threaded part not just the nuts, that is typically the error.

BlackBeard

listen to 50spit, your pedal adjustment from the master cylinder to the pedal is too tight causing it to not release 100% my car had this problem, the brakes would drag slightly and after a couple miles would heat up and lock up completely until it cooled down. take the pedal off and see where the master is fully released then install the pedal and see if its pushing on it at all

jsmith811

I had to remove one of the Two nuts that was on the clevis and it was probably pushing up way too much, my son will not be riding until this weekend, so I will see how it goes.. I hope that was the problem. In the photo you can actually see there are two nuts on the bottom of the clevis, not sure why it had two there, I had to screw the adjustment up at least 1/4 of an inch, so this could have been the problem.