My bike computer picks up off the rear wheel–how will that work with a rear disc?
I’m a total dork when it comes to disturbing the aerodynamics of my 999s with a magnet, I put a magnet on the tape that I put over the valve hole, it is then “internal” and doesn’t disrupt my fast wheel while I charge down the road at 18.2 mph.
-SD
‘rare earth magnet’ (neodymium?) from radio shack. ~5mmX 1.5mm. It is extrememly powerful for it’s size. (It comes in a pack of 2 that looks like one tiny magnet. It is really two tiny magnets. contact cement it to the disc, after you try it out with tape. I put tape over my magnet, too.
doesn’t disrupt my fast wheel while I charge down the road at 18.2 mph.
Dave–did they make you promise to remove the decals?
That is plenty fast, I averaged that at WF last year.
"while I charge down the road at 18.2 mph. "
No-one here’s buying that one, Dave!
inside the valve cover tape. Now thats neat. I hadn’t thought of that one…
No, I buy my stuff just like most of you guys do. I’m free to remove the decals if I choose, in fact in a couple of cases, I do use a product from a competitor of something else I sell, actually I can think of several instances, but even in those cases, I leave the logos intact for the most part.
-SD
yea, you probably were doing one of them triathlons. I just TT behind the local touring group, leaving about 10 minutes after they do so I can come storming by them feeding my huge ego.
The only thing I could ride after a 1 hour swim is the back of an ambulance.
-SD
Buy a standard magnet that goes on a spoke and break it open to get the magnet. Use double-sided tape to stick in on the disk. Then cover it with black duct tape. Make sure you use black tape or you might be cast as a dork. Oh, and make sure you shave your legs to make up for the drag of the magnet : )
‘rare earth magnet’ (neodymium?) from radio shack. ~5mmX 1.5mm. It is extrememly powerful for it’s size. (It comes in a pack of 2 that looks like one tiny magnet. It is really two tiny magnets. contact cement it to the disc, after you try it out with tape. I put tape over my magnet, too.
Yeah the Neodymium magnets work great for that. Be careful with the glue, some contact cements don’t stay stuck at high temps. Say…the temps the disc might reach while sitting in the sun in Floriduh in the racks waiting for the mid-afternoon start of a sprint. I used epoxy to put that puppy on permanently after that experience.
Good point. That’s why I put tape over it. I guess I’m a chicken to epoxy on the carbon.
Slickest & foolproof (as epoxy can fail w/vibration, tape comes unstuck, and mags get knoced loose changing wheels) method is to simply dremel a very small hole the size of the magnet into the disk & then expoxy it in. I’ve done it on 3+ discs over 15 years & never once had a problem. Caveat–this has only been on Zipp discs, which are honeycombed–don’t know how it would work on a HED or Renn.
You would need a big pair of b__ls to pay Two Grand and then take a Dremel to them (the wheels, that is)! God bless you.
I would say ‘COJONES!!’
.
Damn, you are seriously brave, man. I rarely trust myself to do much bike work. But drilling out a disc for a place to put the magnet? Mad props man.
-C