Hi all,

I am currently on a RTW trip (www.thebigbiketrip.com) with a friend on two 1150GSAdv's (2004 models). We have approx. 85,000 miles on the bikes and have both noticed a loose front disc. We have done lots of ripio (gravel roads) in South America, but noticed firstly a few loose bolts holding the discs on. After removing a couple to investigate, I noticed there is a slight shoulder been worn into the alloy hub of the wheel, and it is now possbile to rotate the disc slightly on it's fittings, causing a knocking sound when you move the disc by hand. I have attached a photo of the bolt location to the alloy hub, and hopefully you can see the slight shoulder.

My question is has anyone else noted similar problems on the front discs/wheels, and if so does anyone have a good solution to the problem? My fear is that the wear will only get worse from here on, and with Australia, Japan, Russia, Monglolia and Kazakhstan to go before returning to the UK, I don't want to get stuck high and dry with no front brakes!

The only solution I can see at the moment is either to machine the hub mounting positions and then space them back out to standard thickness. Either that or maybe fit a solid washer behind the disc mounting points, but then the bolt spacers will be too tight and the disc won't float anymore.... anyone got any bright ideas???

Cheers,

Rik & Rob

Attached Images