2 different bikes one rattles even though the rotor bolts are secure flick it with your finger and it vibrates and the other just annoys me by just ping ing when jra aargh!!
Both on the rear!

The pinging is due to heat and there is movement on the pins as that’s why they “float”

The float on hope floating rotors should be radial only, not lateral. I’ve had the bobbins come loose occasionally. Send it back to hope and ask nicely to have it tightened. They turn it around really quickly. Oddly, of 8 floating rotors 8nly one has done it but it’s done it twice.

its not heat pinging just annoying pinging when I just start riding will contact hope Ta!

Send it back to hope and ask nicely to have it tightened. They turn it around really quickly

Funny that as when I contacted them with the same issue they said they couldn’t do anything about it.

Fixed them myself with a large fire poker, a socket to support the rear of rivet and big hammer.

I didn’t call, I just sent it back with a nice letter.

That only happens to mincers that drag the rear brake and over heat the rotor.

I didn’t call, I just sent it back with a nice letter.

I actually went through the trouble of Emailing them first, will be trying your approach in future.

That only happens to mincers that drag the rear brake and over heat the rotor.

😀

Guilty as charged!!

Lay off the rear brake and cultivate that hipsters beard into a kind of air brake. 😛

That only happens to mincers that drag the rear brake and over heat the rotor.

This, well that is what is causing mine in the past on an old set.

Mine got rattly, I got them both replaced. They did it again, I sold them, replaced them with proper steel ones. They just add complication and problems, I don’t think they do anything useful tbf.

As a serious answer.
I’ve had this happen on a couple of the 160 rotors but the 180’s seem to be a lot thicker where the rivits are and they’ve been fine.

Actually, if memory serves, it was the wife’s 160 that did it.

What is ment to be the benefit of floating rotors?

The rotor, when hot, can expand radially without the warping that would be caused if the centre of the rotor was bolted to a fixed point like the hub.

But well made steel rotors are highly resistant to warping too, and can be better at dissipating heat in the first place

Floaters are also often claimed to be light but they’re generally not- alu is lighter than steel, but there’s a lot more of it, plus the rivets/bobbins.

The real benefit is that they look cool.

Mine don’t rattle,but they make a racket when cooling..:-)
They do look cool though…

I’m sure there was a descent sized thread recently about hope floating rotors which might provide some more info.

I’m interested to know if one of the benefits of floating rotors is that the aluminium spider helps isolate the hub (and bearings) from the heat at the braking surface. This is something I’ve believed is true but some googling of heat transfer properties of different materials suggests otherwise.

Who cares what the point is. They just look good.
All mine ping when cooling but never had any rattle or come loose.