Where do you put the timing magnet on zipp disc wheels

On the front wheel.

Funny…original post deleted. It’s okay, guys and gals, pretty much the only stupid questions are the ones not asked…right?

He wanted to know where to mount a magent on a bike with 909 (or some other disk on the back)…my simple answer, on the front wheel. Not a dumb question at all.

My simple answer, on the front wheel. Not a dumb question at all.

But that could be a dumb answer if he has a Cateye Double Wireless!

Taking the question literally and assuming that he has a reason for mounting the magnet on the disk vs the front wheel, the best way to do this is with a dab of silicone, then a strip of electrical tape over it to smooth the surface out a bit. I did this on a Renn disk when I was running a Cateye Astrale wired to the rear wheel, and it worked great. When I switched computers and didn’t need the magnet on the disk any longer, it just popped right off and the silicone rubbed off with no residue.