I just got my tires replaced and now I am having possible binding issues with them now that I have them back on. The front one spins more freely than the rear, but the front also has a sliding sound to it which concerns me. I have attached 2 videos with the front and rear spinning. In the front wheel video, you can hear the sound a lot better when I move to the back of the front tire. Trying to see how free spinning they should be. Sorry for the video quality.
Your videos show "private" when attempted to play.
Nevertheless disc to pad is what Im thinking. If the brake levers were even slightly pulled with wheel off, the pistons might have moved out a bit and when wheel was installed, are still lightly dragging.
Lift bike and tap "TAP" brake caliper on the outside, then try spinning again. Usually resettles the brake pistons.
Make sure your chain isnt way too tight also.
Also, you have pinch bolts on the front forks at the axle.
Try loosening the pinch bolts on the side opposite the nut, bounce front suspension 3-4 times and retighten pinch bolts. This centers the wheel between calipers, then double check axle nut torque.
Ok, so I just went out and loosened the pinch bolts on both sides and took it off the front stand and back on the stand like 5 times to let the front suspension center the wheel between the calipers. I also tapped on the calipers with the back of a screwdriver a bunch but still the same noise is going on in the front. It definitely sounds like the disc to pad contact is happening. Sorry, I thought I had put that in the first post. Any other ideas?
I haven't had any issues with braking or any major vibrations at all. I could have sworn it made this sound before even taking the wheel off but I could be mistaken? It is like the brakes are being pulled ever so slightly when they actually aren't. It is like they are just sliding. I could probably do some better camera work, but I was trying to get the noise on video.
Time to isolate the issue, pull the calipers off leave wheel on, spin and listen. add each caliper, spin again on each. Make sure you dont have badly worn pads too, like metal showing. Go ahead and use some flat bar or something and push the pistons back in at least 1/4 inch on all. Pump brakes back up after calipers are installed.
If it appears to be calipers after doing the above, you might need to take them apart and clean them.
And normally when I install an axle, I slide axle in, with no pinch bolts tightened, install end nut and tighten as tight as I can before axle spins, then tighten axle nut side pinch bolts. Then bounce front end without applying brakes, then tighten pinch bolts opposite of nut. That guarantees axle and wheel are where they need to be. Just thought I'd cover that issue thoroughly.
Yeah, the front didn't seem too bad other than that noise of the dragging pads which I just got situated. The chain is semi-tight. I have got about an 3/4 - an inch of give in the middle of it between sprockets. I might loosen it just a tad.
Got everything mounted back up, pumped them back up but still having the same issue with the pistons not retracting. Found a piston puller online and they seem fairly easy to clean. Also calling a few shops around here within the next couple of days to see how much they would charge to do it. Thanks for all of the help.
It sounds like the seals in the caliper that seal the pistons have some build up behind the seals causing them to squeaze to tightly on the pistons. If you've never rebuilt multi=piston calipers, when you're ready pull them and drop them off at a shop let them pull the pistons and clean them. Most times the seals arent bad, its the build up of crystalized brake fluid behind the seals.
Just going to use an old tooth brush to clean up the pistons and piston chambers when I get the tool. Might as well do both fronts and the rear while I am doing it. Then I will flush the lines and put new brake fluid in, bleed, put all back together and hope for the best.
I am picking up new seals either from a local shop or online. Figured no need to risk it. Going to be a learning experience. Probably going to use an old toothbrush to clean them up along with brake cleaner/water?
Thanks for that link. I guess they are a little more expensive than I had thought. I figured a couple of o-rings wouldn't be 30$
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