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Navaho6

Rear brake drag

9 posts in this topic

Rear brake pads are dragging a little on my '06 450. The rear wheel spins but not near as freely as my other bikes. I checked the rear wheel bearings and they are fine.

I pulled the entire system apart, inspected the caliper piston and seals, replaced the guts in the master cylinder, replaced the pads and pin, replaced the entire rear wheel (brand new rim & spokes) and rotor, and it's still dragging. :smirk: It appears that the piston in the caliper does not retract as much as it should once I release the lever. It moves about half the distance as my TE610 rear brake.

Should I replace the piston and seals in the caliper or buy another caliper?

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I would pull the caliper apart and see what shape the piston and housing are in before getting a complete unit. Like most calipers there really isn't a lot to them so 9 time out of 10 a all that is needed is a good cleaning and the seal and dust boot.

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Longshot here. But could the fluid reservoir be too full limiting return travel?

Maybe. What is the correct level?

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Just went and spun it around a few times. It drags a little on the stand. I've never noticed it dragging while riding though.

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Maybe. What is the correct level?

I don't know since I have a remote reservoir. There should be an air space to accommodate fluid gain in the reservoir when all the brake parts get hot. I do not have a 06 manual does it reference fluid level filling procedure?

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I don't know since I have a remote reservoir. There should be an air space to accommodate fluid gain in the reservoir when all the brake parts get hot. I do not have a 06 manual does it reference fluid level filling procedure?

Ha. That is the most PC way of saying RTFM I have ever seen. Nice work.

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