Vibrating after new tires

[Jonny D_imp]

Hey folks I’m looking for a little assistance with my 2017 CB. I ran over a nail or screw and had to have the rear tire and tube replaced at about 2300 miles or so. The tire and tube was replaced, and after riding it for a couple of days I noticed a new odd vibration that seemed to be coming from the rear tire. Hoping it was just because the tire was new I ignored it for a while, but it didn’t go away.
I brought it back to the mechanic and they said the new tire they installed was cracked and the front was scalloped, to get rid of the vibration both would need to be replaced with a discount due to the fact the tire they replaced was part of the issue. After a long wait I got the bike back and the problem was noticeable after a couple of hundred miles again.
I noticed the rear brake caliper seems to be loose but when trying to see if the bolts were loose it appears to be tight. Is it normal for the caliper to move slightly on the rear brake? Also the vibration is noticeable from 45mph-60 or 70, anything after that I’m getting blown all over the place and it’s hard to notice. Thanks for any guidance!

[Houtman_imp]

I replaced both tires and tubes on my 2017 with the OEM ones and they are perfect , what tire did you put on ?

[Jonny D_imp]

I replaced both tires and tubes on my 2017 with the OEM ones and they are perfect , what tire did you put on ?

They are Bridgestone battlax bt45r. It doesn’t seam to be the tires I think it may be the brakes?

[17-CB-002]

I replaced both tires and tubes on my 2017 with the OEM ones and they are perfect , what tire did you put on ?

They are Bridgestone battlax bt45r. It doesn’t seam to be the tires I think it may be the brakes?

They are Bridgestone battlax bt45r. It doesn’t seam to be the tires I think it may be the brakes?
Me too I replaced my tires (tubeless) with Bridgestone BT45 or 54, however did not feel any vibration in spite of not balancing the assembly.
I did not balance the wheel assy because I was testing the tubeless conversion and since no vibration was felt I did not bother to balance them. I still have the balancing beads in my tool box.

Regards
Alain

[peterbaron]

I do everything with my motorized equipment/vehicles by myself.
Bike's tires are always handled by reputable Honda dealer, never had a problem with my Michelin PR3 or lately front Dunlop so far....
The front Dunlop has to go next season and will be replaced again by Michelin 120, which I had before.

Proper rotor + tire direction, brakes mounting and torque in place...knock on the wood!!

[max]

Jhonny bt45 tires are not radials but bias ply whereas bt54's ( standard ) are radials, as long as they are a pair that's fine but just so you know.

Have you checked the rear tire on the center stand to see if it is not eccentric by rotating it?

A tire could be balanced by weight but still be slightly eccentric and transmit this through the rear suspension, which happened to me, it was less noticeable when under-inflated so it would absorb the eccentricity somewhat.

Yes, the rear brake caliper has a little play on it's two mounting bolts unlike the front calipers so it can slide on them as the pads wear down and self-align on the disk when activated but the caliper mount should be solidly in place clamped in by the rear axle bolt and capture the "anti rotation" stud on the swingarm.

[Jonny D_imp]

Thanks for everyone’s information. I did check the wheel when the bike is on the center stand and I everything looked straight to me.

[pekingduck]

Is it possible the tire bead(s) are not properly seated? It wouldn't show on a static balancer, only while spun. Have you put it on the centerstand and run it up to speed? Could one or more of the weights have fallen off? Could it be the chain tension has changed and there are loose areas of the chain?

[Houtman_imp]

My 2017 had Dunlops when new and I replaced them with the same , I never liked Bridgestone tires on cars or bikes. Michelin is the tire for me on our cars and possible on my bikes too.

[Jonny D_imp]

I haven’t checked the bike up to speed on the center stand as it has a safety that shuts the bike off if you put it in gear while on the stand. I’ll have to check for proper chain tension thanks!