brake disk

christopher said:

Hi how much free play should be in the front floating disks as mine have about 7mm movement :dunno

Click to expand...

That sounds a bit much...mine move about 3mm.
Any signs of wear?
More importantly, do they work OK?

If they work OK I'd be leaving them alone...as long as there's no apparent risk of the rotors leaving the carrier you should be Ok

Floating disks.... flatten rivets.... eh ?

Any rotational play is a fail in an MOT.

Says it all really ..............................................,

CHANGE THEM

I know they are dear but there are cheaper after market ones.

By the way mine also need changing and they too work OK.

I wouldn't be doing anything to the rivets mate. If not sure about the play, go to a bike garage and ask them to look at the discs for you. Its hard to say without seeing & trying them really.

Thats funny just had the same advisory on my MOT.

Where do folks recommend getting discs from?

hector said:

Any rotational play is a fail in an MOT.

Says it all really ..............................................,

CHANGE THEM

I know they are dear but there are cheaper after market ones.

By the way mine also need changing and they too work OK.

Click to expand...

http://www.ukmot.com/bike_3-2.asp#Text_top
not 100% true hector, as previousley mentioned the Tuono is fitted with fully floating front brake discs and as in the name they require to have latteral movement in order for them to perform. Most bikes have these fitted in order to lesen the chance of disc distortion, not wanting to teach people how to suck eggs but the easiest way to recognise a fully floating disc is the disc is in 2 parts, the outer stainless ring attached to a carrier by what most people describe as rivets however they are floating pins and this is what gives the movement. as for the amount of play in these discs depends on where you measure the movement as a 6mm play at the outer edge of the disc may only equate to a 1mm play at the floating pin, if there is 6mm of play at the pin this would be very visible in the form of elongated holes around the pin. if in doubt take it to a good mechanic who knows his onions before you spend your hard earned cash :thumbup

I am never to old to learn brooksy but

I will stand by my post AND will enquire about play in MY discs .

Thank s for the info

Keep your brakes right & look after them.

Its tempting to save money & buy some cheaper parts or even skimp on maintenance.

Lots of people spend lots of money going faster when they should consider how they intend stopping.

Remember, they only have to go wrong once & you are in the deep mire.

Lecture over.