front discs

[hightower]

On phone so short and sweet. Front right hand disc has warped and is locking on. Should I replace both sides. And where is best place to buy (read budget)

[Tefer]

Hi,


I think you always have to replace both, your also better changing the pads too.


I bought Ferodo discs for £108 each, the are just fitted so can't tell you about how the will last but the mecahnic fitting them said the looked really good quality for non oem parts. He compared to the oem disc and found it almost identical in comparison.


http://www.ebay.co.uk/itm/Yamaha-FZS600-...3cd8dc8fa1

[Fazerider]

If you're on a budget I can't see any good reason to change both sides. Second hand discs come up on ebay from time to time, I've bought that way several times in the past with no problem.
Change the pads on that side and clean up the pistons... the usual cause of a disc warping is down to the two sides of the caliper not applying an equal force. If you can't get all 4 pistons moving smoothly by finger pressure after that, you'll need to change the seals.
It'll be worth cleaning and checking the good side too just as a preventative measure.

[hightower]

What's best way to keep front up. I have car axle stands but could be dodgy to use on bike

[Fazerider]

I use bricks and a block of wood under the bike... the downpipes don't have any problem supporting the weight, especially if the tank's empty (or you could simply take it off).

[bigsteve]

dont know if this might help but worth watching before you purchase new discs

Delboy's Garage, How-To Free up 'motorcycle brake disc bobbins'.!

[hightower]

Friend had told me he sends his off to be fixed for a fraction of the cost. Anyone know anything about this?

[darrsi]

For a quick fix there's no reason to change both discs at all, they are totally independent per caliper and will adjust to thickness accordingly.

Fazerider's right in saying your caliper is highly likely the main cause, in fact to warp it that bad i'm surprised you didn't notice an issue earlier by noise or bad feeling.

[hightower]

I had a near accident on the morning, putting it down to frost at the time. But on the way home I noticed this so guessing this was the cause. It wasn't too bad leaving work, but by the time I got home it was nearly solid so guessing it happened fairly quickly.

[wickedmonkey]

dont know if this might help but worth watching before you purchase new discs

Thanks. Very helpful vid. Do you know what he was cleaning the discs with?

[hightower]

Thanks. Very helpful vid. Do you know what he was cleaning the discs with?

Probably a tin like this:


http://www.wheelies.co.uk/p26381/Muc-Off...tAodQgkAtA


I'm planning on doing a full calliper dismantle, clean, and new seals. Let's see how it goes....

[hightower]

Discs off, decided to go for new discs. Callipers pitted.


Put wheel back on to save needing to keep it propped up, so no callipers attached and expected wheel to be free moving, but still fair amount of resistance. Best way to clean and get moving freely?

[Fuzzy]

New wheel bearings?

[Chris]

New bearings. Might be worth checking to make sure the forks are aligned right and spindle etc aren't too tight.

Chris

[hightower]

Bearings ready to go in tomorrow. Ordered caliper seals but only one per caliper I've just discovered, so need to order 6 more. Not as cheap  as I thought...