Further to an earlier posting, found out that the play in the back wheel under braking is in fact a the rotors fault!

Its a Hope floating jobbie and the outside braking disc is ever so slightly loose.

Can this be rectified or is it buggered (technical term!)?

the braking surface is meant to float a bit compared to the spider.

causes juddering under braking though. if its the design then I guess its back to normal rotors for me!

Ring Hope.

Depening how old it is they might send you a new one.

Happened to mine when they first came out.

Rang Hope ‘Consumable part’ apparently so they wouldn’t replace.

Not overly impressed tbh.

Never used the floating rotor again.

the braking surface is meant to float a bit compared to the spider.

Is it really? I very much doubt it is.

call be stupid but the name floating rotor…. maybe the name gives a hint as to its nature….

I don’t actually think it floats – it’s just given that name because it’s two seperate pieces.

It’s not meant to move, what benefit would it have from moving? **** all.
As above it’s a two piece rotor to help dissipate heat under breaking.

They do float on the rivets to allow for expansion & contraction of the braking surface, which can help stop warping rotors as well as saving weight.

Do any of you disbelievers actually have a floating rotor?

Mine move a bit. It’s only a teeny tiny bit though.

Aluminum and Steel expand at different rates when they get hot. There is no simple way around this detail. A rotor made of two materials will be effected by this. The only question is how obvious, not whether it happens or not. I would expect the amount of looseness on a brand new rotor to be negligible, but once it has been heated and cooled a few times a little play will develop.

All a matter of tolerances and usage as to how obvious and how quickly the effects will become evident.