Brake pad replacement?

Rexblaster
Posts
92
Joined
9/10/2015
Location
Round Rock, TX, USA
Hey all, I've got a 2007 crf250r and Ive noticed a pretty big decline in brake performance lately. My front brake (I use it pretty heavily) is super spongey and squeaks when I pull it in and try to push the bike forward standing still. Also, it seems like no matter what kind of pressure I put on my back brake it just locks up? (It could just be me being an idiot, lol) Should I be looking at new pads, lines, or fluids?
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CarlinoJoeVideo
Posts
7517
Joined
11/30/2013
Location
Portland/Los Angeles, CA, USA
10/25/2016 5:48pm
You can start by trying new pads and bleeding the lines. Take off the brake lever and clean and lube that. If it's still spongy try a new line.

I've been using Galfer pads and very happy with them! Sintered pads work amazing!
Rexblaster
Posts
92
Joined
9/10/2015
Location
Round Rock, TX, USA
10/25/2016 6:13pm
You can start by trying new pads and bleeding the lines. Take off the brake lever and clean and lube that. If it's still spongy try...
You can start by trying new pads and bleeding the lines. Take off the brake lever and clean and lube that. If it's still spongy try a new line.

I've been using Galfer pads and very happy with them! Sintered pads work amazing!
Cool, thanks! Do you think my rear brake locking up is just me or is that a symptom of wear on the pads/ other part of the system?
CarlinoJoeVideo
Posts
7517
Joined
11/30/2013
Location
Portland/Los Angeles, CA, USA
10/25/2016 6:26pm
You can start by trying new pads and bleeding the lines. Take off the brake lever and clean and lube that. If it's still spongy try...
You can start by trying new pads and bleeding the lines. Take off the brake lever and clean and lube that. If it's still spongy try a new line.

I've been using Galfer pads and very happy with them! Sintered pads work amazing!
Rexblaster wrote:
Cool, thanks! Do you think my rear brake locking up is just me or is that a symptom of wear on the pads/ other part of...
Cool, thanks! Do you think my rear brake locking up is just me or is that a symptom of wear on the pads/ other part of the system?
Just you. I mean, you can try a less aggressive pad, bleed the the fluid as well. Pretty easy to do. Then see if there's a difference?
adam8781
Posts
671
Joined
12/22/2015
Location
CA
10/27/2016 7:52am Edited Date/Time 10/27/2016 7:55am
nothing worse than a crappy front brake.

go bottom to top, pull caliper off remove the pistons, the seals in the caliper can get full of junk making them stick, unless you can push the pistons in and out using your fingers with ease they need attentin, grease with proper sil-glyde brake grease. anything else will swell and ruin the seals.

pull the brake guide pins and polish them up, grease with proper grease so it doesn't swell and ruin the seals

consider rebuilding the master cylinder (pro x makes a great quality rebuild kit)

new brake fluid to

The Shop

carl-h
Posts
53
Joined
8/18/2015
Location
GB
10/27/2016 1:56pm
Great suggestions so far on the front brake.

Back brake may be adjusted too high so your not getting much feeling on it and locking it up? Try lowering it a little and see if that helps. I set mine so I'm comfortable braking stood up but to brake sat down I need my toe on the brake and my heel is off the peg. If you set it so your heel in on the peg when braking sat down, it'll be that low that you'll never reach it when your standing.

Also boots with a hinge make a huge difference. I wear gaerne sg12's
10/28/2016 6:07pm Edited Date/Time 10/28/2016 6:11pm
Might want to check your steering head bearings and front wheel bearings while you're at it. Lack of grease or wear could cause binding or play making your brake problem worse. Depending on what pads you've been using, your rotors might be glazed, which kills brake performance as well, less bite from pads.

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