Hope Floating Rotors - Loose Rivets

Stevo210

Having an issue with my rear Hope Floating Rotor, after a couple of months of use a rivet becomes loose and causing the disc to resonate with a tingle (poor description).
Ive had it replaced from Hope no issues, same thing happened again, so thinking it was my fault (bike not rotor) I had the rear wheel trued and the dishing checked. All was in order, fitted a new rotor and a couple of weeks of use and the disc rivets are loose again.
Am I missing something or doing something wrong or do discs just go like this in such a short time.
My front disc has been perfectly fine since fitted, the rear brake works fine, but it constantly resonates and rattles while riding along
Opinions welcome.

Front
http://s343.photobucket.com/albums/o465 ... =FRONT.mp4
Rear
http://s343.photobucket.com/albums/o465 ... t=BACK.mp4

ricardo_smooth

common problem by all accounts

nicklouse

yes they do that. they have to have some movement.

but it sounds like you have a bit to much.

Stevo210

On my third disc now, maybe headphones would be a solution. Hope have just replaced them no question, if its normal would they keep replacing them?

Just seems odd that the larger from is perfectly fine for months.

andrewjoseph

Not had any problems with mine for over 4 years. 205mm front, 180 rear.

Stevo210

180 Front 160 Rear

HandjobDan

Another 203 F and 183 R user no issues for over a year. Must be something to do with the smaller size maybe?

Anonymous

It happens. Best solution is to use a non-floating rotor.

benpinnick

Floating rotors.... Can someone explain what the point is?

Anonymous

No.

johnsav

benpinnick wrote:

Floating rotors.... Can someone explain what the point is?

to allow for metal expansion under heavy braking

Northwind

johnsav wrote:

to allow for metal expansion under heavy braking

Allegedly. Actually to sell expensive rotors to the easily impressed.

madmole

The inner can be less strong but lighter and better heat conducting metal than the actual braking disk, Plus they look good

My 180/160 have been on for 4 years with no probs at all, the 160/140 that were on for the year before that were fine

nicklouse

madmole wrote:

The inner can be less strong but lighter and better heat conducting metal than the actual braking disk, Plus they look good

most of that is not correct.

benpinnick

madmole wrote:

The inner can be less strong but lighter and better heat conducting metal than the actual braking disk, Plus they look good

My 180/160 have been on for 4 years with no probs at all, the 160/140 that were on for the year before that were fine

And the flaoting bit is for?

nicklouse

braking on.

benpinnick

Lol.

madmole

The steel braking surface can expand and contract freely, and be desgned for braking grip and durability, The inner can then be designed out of a different material with regards to weight, heat transfer, aerodynamics or looks (not saying that Hopes rotors actually do any of these)

The float is the ability of the outer to move a little on the inner to accomadate differential expansion but still transfer the rotational braking forces to the hub and hence via the spokes to the rim/tyre