Hi all, my Sprint ST has just failed its CT (MOT) on excessive radial movement on the front disc. I know the bobbins are there to allow a little axial movement but not radial. I have looked at the cost of a new disc and when I had recovered from my light headed moment I started searching for another fix. I found that BMW and some others do a bobbin replacement kit. Apparently, the bobbins are made from softer stuff than the disc and therefore wear first. Has anybody heard about this or have experience? I am going to remove the disc and drill out a bobbin and have a look later, will keep you posted
Am I missing something here? Why drill out the bobbins - don't they unscrew? I replaced discs on a recent Daytona purchase and bought new titanium bobbins - no rust, no fuss. Just hope that blue loctite is OK on titanium.
Ah, apologies, OK - my mistake ... I thought you meant the disc to hub carrier bolts but now realise you mean the rotor to centre/hub carriers which, as you say, are factory pressed. No cheap and/or easy answer for you, I fear. I'd guess your best bet will be to keep an eye on ebay for good used. Wish you luck.
I think i would give eBay a miss on things like discs. You would probably end up buying something as bad as you already have. Unless you can go and see in person.