WR250X Grinding/Chatter Under Hard Braking

ebc HH pads need to get HOT to work good. Any full metallic pad does..if your just street riding mainly, i would check out Ferodo pads they are always good or just a ebc kevlar pad. Remember that racing parts are made for that, street parts are made for that, just because it says racing doesnt mean its better for your bike under the conditions you ride....

if you had Brembo caliper and SS lines and were track daying it, those pads will be great..............

Sure it's not coming from the back?
Next time pull the clutch in, if it goes away it's coming from the back.

only ever ran HH pads on the back of some bikes or for the handbrakes, way overkill for the front of these bikes. OEM is the best i think they last for a million miles it seems.

f3joel said:

Sure it's not coming from the back?
Next time pull the clutch in, if it goes away it's coming from the back.

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I'm ashamed to admit that I had the clutch in (I've only recently begun to explore hard down-shifts and trail-braking) and by that phase of the braking, I had come off of the rear brake completely. Furthermore, the feedback from my front brake lever corresponded alarmingly with what I was hearing feeling.

I'd be taking the front caliper off and inspecting it.
Make sure your clips are in, holding the pads right.

^ what he said.

There is def something not right. HH pads aren't that much different from most oem pads...
You might notice some squeal at low speeds but that should be about it.

The Vesrah pads I run on my race bikes are crazy harsh on rotors and I've never heard or felt anything crazy. Maybe pull the caliper apart and clean the pistons...???

How many miles are on the bike?

rc23 said:

^ what he said.

There is def something not right. HH pads aren't that much different from most oem pads...
You might notice some squeal at low speeds but that should be about it.

The Vesrah pads I run on my race bikes are crazy harsh on rotors and I've never heard or felt anything crazy. Maybe pull the caliper apart and clean the pistons...???

How many miles are on the bike?

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Got about 13K miles on the bike. Caliper looks to be set up properly. And, again, most of the time the braking is smooth. In fact, this has only happened twice. Interestingly enough, both instances occurred at the same location. Sometimes if I miss my left-turn light at one of the main roads on my commute, I hang a right and then cut a U-turn at the first left turn lane. Its a bit downhill coming into the U-turn and I'm usually braking really hard and late in order to beat the on-coming traffic. I wonder if I'm locking-up the front or something. That could make for some rough feedback at the front.