Here is one for you to ponder.

My Tenere has three warped brake discs.

No sticking calipers.
No rubbing pads.
No heavy handed/footed riding.
No abuse other than normal road riding.

I took everything aprt and could not find a single fault.

The only thing that sticks out is that they all went wobbly within 2 weeks of each other. This was during the very wet few weeks we had in the UK. I was riding in heavy rain almost everyday.

I have ordered new discs as i can't handle doing the funky chicken every time i want to slow down.

Any ideas?

Are u sury the ri ets the disks float on arnt siezed? Gentely bang a nut and bolt through them and use it to rotate them a few times u will feel them slackning off my x front brakewas the same for the mot untill I was told to free the flotes off as the disk on the x is designed to move side to side a little but not sure the z is the same tho

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Yamaha xt660x 2009 blue/gold mods= iridium plug, stage1+2, removed snorkel, blocked ais, akrapovric pipes, power commander pc3usb (pre made map), adjusted tps, dynojet 02 optimiser 30amp aux relay, smoked puig screen, oxford heated grips and brembo carbon ceramic pads, rfx 30mm bar raisers, puig long adjustable leavers, plus much more and a cheep �30 alarm which stopped it been stolen

All the same age etc etc same amount or dirt etc and lots of water ........ for the sake of a nut and bolt and half hour with a wratchet its worth a try

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Yamaha xt660x 2009 blue/gold mods= iridium plug, stage1+2, removed snorkel, blocked ais, akrapovric pipes, power commander pc3usb (pre made map), adjusted tps, dynojet 02 optimiser 30amp aux relay, smoked puig screen, oxford heated grips and brembo carbon ceramic pads, rfx 30mm bar raisers, puig long adjustable leavers, plus much more and a cheep �30 alarm which stopped it been stolen

+1 for stuck or sticky bobbins on the discs. You only need one to have seized on an individual disc to through things out and create a juddering problem. The effects can be magnified further if the calipers, pins, piston etc are sticky and corroded too. If the bobbins are stuck through corrosion, then the moving parts of the caliper are likely to be in the same or similar condition. All this is not unusual on a bike used through a wet winter.

I very much doubt that all three discs have warped.

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If all three have warped I give u permission to remove my little finger with tin snips

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Yamaha xt660x 2009 blue/gold mods= iridium plug, stage1+2, removed snorkel, blocked ais, akrapovric pipes, power commander pc3usb (pre made map), adjusted tps, dynojet 02 optimiser 30amp aux relay, smoked puig screen, oxford heated grips and brembo carbon ceramic pads, rfx 30mm bar raisers, puig long adjustable leavers, plus much more and a cheep �30 alarm which stopped it been stolen

All three are warped..i know..i've checked.

The idea of the font and the bobbins makes sense but what about the rear..this is not floating and bolts straight to the wheel hub.

I just think that riding 70 miles a day almost every day for months and months in all that rain and crap has exposed a bit of a weakness. Not many other Teneres get the use and expose to the constant wet that mine did.

Most seem to be tucked up when it rains or cleaned within a inch of their lives if the get wet/muddy.

Mike

I run on average 200k a day in all sorts of weather in the mountains carrying a very heavy payload.Typhoons and all. Winter is like borrowdaIe and summer is like the amazon.
park my bike 5 metres away from the ocean outside.never clean it. Take it off road during the weekends. Drop it crash it bend it. Change my own tyres with the disks on the ground. If there warped, I haven't yet noticed.