Formula rotor issues..... Now with reply!

miss notax

Morning all

Well, after a very sucessful weekend riding Afan and Brechfa i'm glad to be back in the office for a rest!

Had a bit of an issue with my brakes (K24 Oro) though, which i'm not sure is worth following up with Formula or not.... We were literally ready to ride on Saturday morning, and in riding acros the car park I realied that my rear brake pad was almost completely worn (I know, last minute or what :oops: ). To save time (I didn't have spares with me either!) I took it straight into Skyline and asked them to put new ones in.

In checking the brakes, they commented that there was a problem with my rear rotor. I have Formula floating rotors, and the bolts that attach the 'floating' part to the outer ring of the rotor were all loose meaning that there was about 3mm or so of play in the rotor (and therefore in the wheel) even when the brakes were on. I asked if they would ride it like this and they said not really - so I opted for new rotors and set off. Job done.

If somethings not 100% I would rather sort it, so i'm happy to have replaced them, but my question is how can there have been that much play in the rotors after only 7 months of riding (the bike was new last summer)? Surely any play in the rotors is bloody dangerous, give the forces that much go through the wheel and brakes? I'm not the fastest rider in the world, but I don't exactly stick to canal paths either - what if something had suddenly broken in the Alps over the summer :shock:

Anyway, as I said i'm happy with the outcome, but I don't know whether this warrants a letter (and sending the rotor back) to Formula or not!

Thanks for any advice!

nicklouse

rotational play or sideways play?

I an guessing rotational.

there should be none. contact http://www.silverfish-uk.com/

miss notax

nicklouse wrote:

rotational play or sideways play?

I an guessing rotational.

there should be none. contact http://www.silverfish-uk.com/

Yep, rotational.

The more I think about it the more miffed I am actually :evil:

On the plus side, I now have some super new rotors and my brakes feel better than ever (not surprisingly really!)!

nicklouse

still drop Silverfish a line as I am sure Formula will want to see them. and you may get something in return

miss notax

Emailed Silverfish

miss notax

And their reply.....

"Hi Sarah thanks for your email of concern. You'll be pleased to know that the generation of floating rotors which came with your K24's have since been made obsolete by formula's new generation of rotors which are soon to hit uk bike shops (they're currently sat in our warehouse). I appreciate the offer of viewing the old rotors however due to them now being obsolete this will not be required. I hope you enjoy your trip to the alps."

Not sure what I expected, but perhaps a 'sorry for your inconvenience' or reassurance that this won't happen with future rotors would have been nice :?

I must admit that I don't feel entirely satisfied with the response!

nicklouse

Mmm Less than a year old. I would not be happy either.

But as any warranty is with the supplying shop I would be taking it up with them now.

cavegiant

Or just ditch formula completely?

I use the shimano RT76 / rt75 rotors on my bike and thin htey are great.

miss notax

Replaced with Ashima rotors (160 & 180) - I have read mixed reviews, but so far I have been very pleased with them

02gf74

miss notax wrote:

Yep, rotational.

that can oly hapen if the holes for mounting have enlongated or soething wrongwith the round pin (dunno correct term but the thing that holds the rotor braking surface to the central carrier.

The former cold occure if the ounting bolts were not done up tight but the latter case ois manufacturer design or defect.

Motorbikes have been using floating rotors for years and stop much heavier mass for many miles more without such issues.

most strange.

miss notax

02GF74 wrote:

miss notax wrote:

Yep, rotational.

that can oly hapen if the holes for mounting have enlongated or soething wrongwith the round pin (dunno correct term but the thing that holds the rotor braking surface to the central carrier.

The former cold occure if the ounting bolts were not done up tight but the latter case ois manufacturer design or defect.

Motorbikes have been using floating rotors for years and stop much heavier mass for many miles more without such issues.

most strange.

Interesting - thank you

It's completely put me off floating rotors!

02gf74

..... me too, a little bit.

I have hope floating rotor and the disc has blued o nthe edges, meaing it rns a lot hotter., as verified by toching the braking surface ouch! :shock: and then touching the carriere cool 8) ... showing there is little heat transfered from the braking surface.

whether running at a higher temperature helps brkaing pereformnace, I don't know but it does not bode well for a long dowhill.