I recently bought a Yamaha FZ25, used. It is generally in great nick, having only run 13k kms in 5 years. The tyres were shot from sitting too long, so I got some new ones.
It’s been great, but I have noticed significant vibration from the rear all the way to the brake pedal, only when I have a pillion on board. The new tyres are pretty knobby, but I don’t feel any vibration riding solo. Could this be a wheel bearing issue?
If you don’t know what it is, then you should start investigating.
I had a CBR400 some years ago, and felt no vibration riding, but when I gave a lift to someone weighing 80kg one time, the rear bearings collapsed… so it’s certainly something you should look at with a new purchase.
AFAIK wheel bearings are generally pretty cheap and not too difficult to replace.
Collapsed? As in the rollers shattered?
Will get new bearings soon, I guessed it would be good to know for sure they’re the issue
It’s an easy check - remove back wheel and test. After she got off, I rode a couple of km to a local bike shop - after so much wear, a couple of the rollers must have just jammed up and shattered. Not a huge deal at low speed.
Hey @[email protected] Did you ever get the bearings inspected or replaced? This revzilla video just popped up on my YouTube feed and reminded me of your post: https://youtu.be/GMxfJ2IYUgc
Did they balance the wheel when they put the new tires on? Should be really obvious without a passenger though.
They did not, but yes - as you said, if it was the balance, it would’ve vibrated even with no pillion
