I'm installing a bicycle speedo on my Scrambler, what is the best thing (adhesive) to attatch the magnet and sensor to the hub?

 

I've used both "everything gel" and regular ol' superglue. The superglue works better. Just be sure and clean both surfaces with alcohol.

The sensor bolted to a small plate I fabbed and in turn attached to a spot on the brake assembly.

 

RTV silicone rubber adhesive. It's water proof, and flexible. The secret to making it stick better is to wipe down the parts that you are sticking togethere with vinegar. wipe with vinegar and let it air dry, then apply the RTV. Works great.

 

yellow weatherstripping cement used by body shops. strong and waterproof.clean all parts good.