New to the forum so I hope I'm posting in the correct place. Anyway 2018 MT10 that has around 2300 miles and I just re-sprung the bike front and rear for my weight. Question is, once I got the bike back together the front brakes feel different than when I disassembled, mostly the travel of the front lever is less and much firmer than it used to be. It also doesn't seem to grab like it quite did beforehand. I have checked everything. Brakes aren't dragging, pads release when lever released. Forks are properly aligned and set at the factory height, (I went as far as using a caliper to confirm). Rotors aren't warped, axle is flush on right hand side. They just feel weird. I guess my question is how much travel does everyone else have on their front brakes? Mine becomes firm right at the second click of the front brake switch just wondered what everyone else had or if anyone else has any ideas? I don't feel like its an air issue mainly because they're really not spongy, actually the opposite, quite firm. I know thats not a bad thing necessarily but the don't seem to grab as well either. Only thing I can figure is I measure fork height before disassembly and found left and right hand side measurements different by about 2mm (this was from factory) so I'm almost wondering if my OCD of getting the exact fork height for both legs had some effect. Any ideas? Or whats everyone else's free play before firm? Thanks in advance!
Post by RedAndBlack on Jan 10, 2019 5:35:32 GMT -7
In addition to above, I would push the pads out back against the pistons. Sometimes the calipers and pistons engage unevenly. Just make sure when you do this, you wedge the opposite caliper with something so you don't close the opposite caliper completely from the brake fluid pressure.
Unfortunately not. Brakes still feel super weird. Bled them, no air didn't figure there would be. Tried DMT recommendation. no change. I might be overthinking it but they definitely feel different than they did before. Where does everyone else's front lever get firm at? Mine gets firm right at the second click of the brake switch.
Cant get to my bike atm, so cant tell you where my lever engages.
You might want to send them to the dealer to have a look on them just to be sure. That lever is your life insurance afterall.
It sounds a bit as if one of the calipers is blocked completely. That would explain how the lever is firmer (no fluid goes to fill the non functional caliper), grabs earlyer (same reason) and yet braking performance feels reduced.
Try braking somewhat agressively in a safe area and then feel if one brake disc is significantly warmer (please dont burn yourself)
I did the hard braking and had friend use my thermal imager camera. Rotor temps are about the same (maybe 5-10 degrees difference). Idk. It’s weird. They felt good before reinstalling the forks but here again the fork heights were off from the factory. I’ve compressed the calipers and slowly reapplied the brakes and both sides seem to grab at the same point (judging where I can no longer freely move the pad up and down). Only other thing I could think of is if the pads wore to how it was from factory and me setting proper fork height, axle alignment etc changed some sort of alignment giving me a firmer feel but less braking. Idk driving me nuts. It’s like I’ve lost the feel to trail brake now that the lever is so firm but doesn’t really slow the bike. I’ve got new pads ordered just Incase they did wear funny but I’m not expecting anything to change.
Sounds reasonable to try that out, if it doesnt help id send it to the dealer to be checked on.
The MT-10 factory brakes arent exactly phenomenal outbof the box, but since youve ridden it before setting the bike up and know how it SHOULD feel, Id brring it in for a checkup. A bike with bad brakes is no fun.
Where does everyone else's front lever get firm at? Mine gets firm right at the second click of the brake switch.
Just tried it for you, and mine definitely goes past the second click, and bike is basically brand new (419 miles, with very little brake use). And progressive, like it should be. Sounds like you have a problem indeed, and it's not fork alignment. That behavior makes no sense to me, since you have 8 pistons; even if one was stuck, it wouldn't cause the lever to be hard with so little travel. Did you mess with the master cylinder at all?
Last Edit: Jan 15, 2019 12:13:10 GMT -7 by elptxjc
Maybe a blockage in the brakeline? But then with my logic, the brakes would also not release immediately when you let go of the throttle.
Bring it to the mechanic honestly, rather have someone who does that for a living find and fix the problem than listen to some strangers on a forum who only wrench easy stuff on motorcycles for a hobby
Atleast its confirmed that there is something wrong so we got something out of this thread
Hell, worst case youll get a perfect opportunity to put on some steel braided lines or even an aftermarket master cylinder for some much needed added brake feel on the FZ-10
Here's something you might have missed...it certainly fooled me. Have you double-checked that the marker arrow on your brake lever is indeed pointing at one of the numbers (1-5) and no between them? For awhile I thought that my brakes felt odd. Turned out that the span distance dial was improperly set.
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tupphead: I meant BAD Performance in Peterborough which is closer forme
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tupphead: Thanks for the link exuptoy It's a good vid, but Bristol is a bit of a treck for me.
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